P0700 Duramax Lmm

5 LBZ & LLY) of the 6. - Delayed or No Engagement of the transmission. When the shifter in Park and the transmission in park, the computer thinks the truck is in gear. duramax code P0741 I have a 06 gmc 2500hd LLY the tranny has been running hot and sometimes overheating but still shifts and goes through all the gears just fine. The SES light kicked on 3 days later kicking out P0700 and P0708. Read about the history of GM's iconic Allison 1000 transmission, along with its strengths and weaknesses, only on dieselpowermag. Going up hill fine, loses power check engine light on. where the purchaser has the option to buy an extended transmission coverage and has done so. There are a few 2006 models that are labeled as an LLY, however they have all of the LBZ upgrades from the factory, so for performance applications consider those an LBZ. P0700 is the TCM requesting a MIL (Malfunction Indicator Light aka: "check engine"). I'm a 12V Cummins guy so I have no idea when it comes to the Dmax/Allison trucks. did you build it yourself or did someone eles do it? do you know if the taps were reset after the build? 05 lly, ccsb. 05 dura max no start Diagnosing a no start no crank no communication 05 DuraMax caused by a faulty ground for the ECM and TCM. The initial units in 1994, dubbed the 47RH, were adequate at best, but considering the low output of these engines, they faired relatively well at stock power levels and moderate towing. Come along with Eric O. However this doesn't rule out the possibility of a failed PCM or TCM (unlikely). Truck still has same problem. I was jumping my jeep off when this started. 02 chevy duramax dtc# U1000 what does this code mean. 5-2010 Duramax Diesel LBZ LLY LMM (Black) 4. Engine related discussion ONLY. Took it to work and reset it with our geneis tool and on the way home it came right back on. Be courteous to each other and keep it civil. Engine is apart and in the garage Goal is to have it done by the end of this summer. Trouble code P0700. Duramaxtuner. 6L Upper Diesel 3. These are stored in response to a problem found in the truck by the system. Chevy/GMC Duramax 04. Nsbu switch 2010 duramax keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Comes with everything but a EGT probe. 95 PRODUCT CODE: 2277 01-05 6. Started engine, 0700&0900 returned. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation. im just posting to see if you guys have any ideas or advice on resolving this issue. A Tech II is needed to read the code. Since there is no "Check Transmission Light," the ECM sets an informational DTC P0700 and illuminates the MIL or CEL (malfunction indicator lamp or check engine light). 5-05 LLY Forum > 04. There is another code in the TCM that you need to pull that will actually tell you what the malfunction is so let me know what that code is and I will help you out. 5-2005) Duramax. Rules & Guidelines: All posts must be Duramax related. This article addresses a code PO735, typically after driving at higher speeds. 2001 Chevy SB/CC Duramax LB7 Garrett GT4088R from PPE, PPE Duel fuelers, PPE Tuning, PPE stage 4 transmission w/suncoast 1056 converter, PPE Lift pump, Fabtech tie rods, Black Eagle alloys. Fits All the Below Automatic Models. I have an 03 chevy 2500hd duramax and im getting a code of P0090 fuel pressure regulator control circuit? how can i fix? - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. 5 LLY no crank/no start If this is your first visit, be sure to check out the FAQ by clicking the link above. DT Founder and Owner, Nick Priegnitz, explains a tuned TCM can improve driveability of a modified engine and tires. 2006 chevy Silverado Duramax diesel service codes U0100 and p0700 2006 chevy Silverado duramax diesel The check engine light came on and the transmission shifts as if it is in trailer mode U0100 and p0700 codes came up Vehicle is stock Can anyone tell me how to fix it. Chevy/GM Duramax Diagnostic Trouble Codes (DTC) Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. DT's Nick Priegnitz recommends. The TCM has a code set in it and sends a message to the ECM that there is a code set. Duramaxtuner. it involves the p0401, p0403 codes. Shop by Phone: (815) 568-7922 Support: (815) 568-7924 Please have your VIN and Tire Size handy when calling. Engine won't turn over with key at all. & P0708: transmission range sensor circuit high input, how do i - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. This truck is a head banger, I have an 06 2500HD Duramax 6. 6L Duramax LMM specifications, history, & information. duramaxforum. Chevy and GMC Duramax Diesel Forum > Chevy / GMC Duramax 07. Hey guys little problem, 2008 Chevy Siverado 3500 w/Duramax & Allison 350k mi. However this doesn't rule out the possibility of a failed PCM or TCM (unlikely). P0700 is a diagnostic trouble code (DTC) for "Transmission Control System Malfunction". Chevy/GM Duramax Diagnostic Trouble Codes (DTC) Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. PCM / ECM Processor Fault. The Allison 1000 transmission is a 5 speed automatic with a single disc lock-up torque converter. Duramax Diesel VGT SOLENOID fits GM / Chevy / GMC 2004. The code will return again and again until the TCM is cleared, or a specific number of engine warm-up cycles, as long as the reason the code showed up doesn't reocur. Summary: My transmission throws code P0700 and locks into whatever gear I'm in at the time if moving. It has proven to be the best transmission in the 1 ton trucks over the years. I have '02 3500 4x4 w/ Duramax and Allison. You may have to register before you can post: click the register link above to proceed. 5 LLY no crank/no start If this is your first visit, be sure to check out the FAQ by clicking the link above. 2007 Chevrolet Silverado Classic - 4WD | Sierra Classic, Silverado Subject: 6. Tips on performance, fuel economy, troubleshooting and more. This article addresses a code PO735, typically after driving at higher speeds. My first thought was fuel filter but then when I watched your vid I realized its not even turning over, seems electrical, like you stick the key in and all the lights just go off, what year truck is it??. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM. Shop by Phone: (815) 568-7922 Support: (815) 568-7924 Please have your VIN and Tire Size handy when calling. Competition Diesel. Replacing the NSBU Switch Powertrain - Engine, Transmission & Differentials - LLY Replacing the NSBU Switch - DIESEL FORUM - ALL DIESEL FORUM DIESEL FORUM - ALL DIESEL FORUM > GMC and Chevy Diesel Forum - Duramax Forum > DURAMAX TECHNICAL ISSUES - TROUBLE SHOOTING > 2ND Generation Duramax [LLY] > Powertrain - Engine, Transmission. In mid 2004 the LLY series was released. Duramaxtuner. BLACKHORSE-RACING 3" Exhaust Turbo Down Pipe and Header Bolt On Passenger Side Up-Pipe w/Gaskets Fit for 2004. Engine related discussion ONLY. What is code P0700 on my 2006 Chevy Duramax 2500HD and what…. Clicking this will make more experts see the question and we. Replace the failing Fuel Temperature Sensor in your 2001-2007 GM 6. 2006 LLY engine discussion belongs in Third Generation forum due to the differences of the 2006 LLY and the 2004. any help would be great on under standing this code and what i might can do. To ensure that you have the LLY engine, please verify that the eighth digit of your VIN is a "2". 95 PRODUCT CODE: 2332 01-05 6. TCS Products is a family owned and operated business located in Langley, BC Canada. I'm a 12V Cummins guy so I have no idea when it comes to the Dmax/Allison trucks. I was jumping my jeep off when this started. The p0700 code means there is a code set in the Transmission Control Module. I have a 2004 duramax that i reciently changed the fuel line that goes from my fuel sending unit to my steel feed line. To ensure that you have the LLY engine, please verify that the eighth digit of your VIN is a "2". 5-05 LLY Performance - Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines Related To Performance And Longevity 04. Engine won't turn over with key at all. Replaced control attached to valve body with 6 bolts. Simply said, it's a general code for transmission issues and generally is accompanied by another code such as P0701, P0702 and so on. New to the Forum. If this is your first visit, be sure to check out the FAQ by clicking the link above. 6L Duramax "Truck started losing power when warm, when cold for the first 10 miles or so the trunk runs great. GM defines PO700 as Transmission Control Module Requested MIL Illumination. Your Duramax high-pressure fuel system relies on several electronic components and sensors for proper operation. 6L Duramax Installation Instructions 1054745 GMC/Chevy Duramax 6. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Please read the subreddit policies before you post and comment. Although generic, the specific repair steps may vary depending on make/model. There are a few 2006 models that are labeled as an LLY, however they have all of the LBZ upgrades from the factory, so for performance applications consider those an LBZ. You didn't say but we are discussing a Duramax aren't we?. 2006 LLY engine discussion belongs in Third Generation forum due to the differences of the 2006 LLY and the 2004. Shop by Phone: (815) 568-7922 Support: (815) 568-7924 Please have your VIN and Tire Size handy when calling. Duramaxtuner. Please Discard PIP3754. 2004 chevrolet duramax coolant resevoir reading low coolant level - low coolant level reading on dash instrumentation low on coolant in resevoir. While the Allison 1000 was a big step forward, it still needed improvement. 5 LBZ & LLY) of the 6. You may have to register before you can post: click the register link above to proceed. lly duramax | lly duramax | lly duramax problems | lly duramax issues | lly duramax transmission | lly duramax y bridge kit | lly duramax cp3 pump | lly duramax. a year ago it had the p0101 and power reduce mode with the stock air intake. TCS Products is a family owned and operated business located in Langley, BC Canada. Welcome to the Duramax Diesels Forum. com discusses Limp Mode in depth. 5 (LBZ & LLY) Discuss the third generation (2006-2007. Chevy/GM Duramax Diagnostic Trouble Codes (DTC) Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. We rarely see them fail unless being used for extreme use or performance. Clicking this will make more experts see the question and we. You can take a power probe and shoot 12v to starter solenoid wire and it will crank and run fine. 5 LBZ & LLY) of the 6. Cleared that code and got P0748, pressure control solenoid electric. P0700-transmission Control System (mil Request) I do not know what ( mil request) means. Possible Solutions. I have on 04 4wd DMAX with 83000 miles on it. Maxxtorque duramax fuel system for. Since DTC P0700 simply refers to a fault in the TCM, further diagnosis is necessary to determine the TCM DTC and the nature of the fault. BLACKHORSE-RACING 3" Exhaust Turbo Down Pipe and Header Bolt On Passenger Side Up-Pipe w/Gaskets Fit for 2004. tried to clean it but didnt help. I know the 700 is a general code with the main ECU/ECM talking to the trans computer, and the 727 is said to be a speed sensor. 00-05 LB7-LLY 6. 4WD Chevy Gmc Duramax with Allison Transmission Code P0735 5th Gear ratio. Engine is apart and in the garage Goal is to have it done by the end of this summer. P0700 is the TCM requesting a MIL (Malfunction Indicator Light aka: "check engine"). Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it. That Duramax is tied to one of the most popular automatic transmissions, the Allison 1000. com (for anything), use this link to support OBD-Codes. The 2001 GMC Duramax diesel stopped running while backing out the driveway and will not start. it involves the p0401, p0403 codes. This article addresses a code PO735, typically after driving at higher speeds. I have a 2005 Pony Express Motorhome on a C5500 Kodiak chassis with a 6. Shop by Phone: (815) 568-7922 Support: (815) 568-7924 Please have your VIN and Tire Size handy when calling. lly duramax | lly duramax | lly duramax problems | lly duramax issues | lly duramax transmission | lly duramax y bridge kit | lly duramax cp3 pump | lly duramax. New to the Forum. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it. Allison Transmission with DTC P0700 & P1779. 6L Duramax LMM specifications, history, & information. This code is a fairly simple one. Industrial Injection designs, manufactures and delivers the best products by utilizing our experience with our advanced technology and a strong desire to lead diesel innovation…and will continue to do this for years to come. With the release of the 6. 6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. Going over fuel system trouble shooting, Allison transmission problems, overheating and much more. There are a few 2006 models that are labeled as an LLY, however they have all of the LBZ upgrades from the factory, so for performance applications consider those an LBZ. 7L Dodge Cummins back in 2007, came numerous advancements in technology. The scanner reads a PO299, turbo underboost, that's the only code it shows. This code is a fairly simple one. Many model years were crossover or transitional years for the Duramax diesel, thus it is often necessary to decipher the engine model/version using the vehicle's VIN number. COM tunes both the ECM and the TCM in Duramax diesel engines. 2007 Chevrolet Silverado Classic - 4WD | Sierra Classic, Silverado Subject: 6. P0700 and P0735. Com - Bringing The BEST Together > Tech Area- GM > GM Tech > LLY GM Duramax > 05 duramax tranny codes p0700 and po735 help!! PDA View Full Version : 05 duramax tranny codes p0700 and po735 help!!. P0700 Meaning The Transmission Control Module (TCM) monitors the malfunction of sensors and actuators relating to transmission control. Also taking the brake fluid cap off and checking the fluid level, and just reseating the cap may turn off the code. Duramax Second Generation: 2004. 5-05 LLY - Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines Chevy/GMC Duramax 04. This product is recommended on all 2006-2010 Duramax trucks equipped with the six speed Allison trans. It cranks just doesnt turn over. 6L (RPO - LBZ or LLY) Diesel Engine This PI Was Revised With Repair Information. 2004 lly dmax So just got my truck tuned and the abs and e barke light are coming on and say service break system after start up drive for about 1 mile and it comes on also the tuner did my tire size said they were 34 inch and now my speed is fast by about 5-7 mph also hard shifts around the 75 HP tune. Trans Limp Mode (typical on '01-05 Dmax): When engine power is added to a truck the potential to slip the transmission clutches rises. Clicking this will make more experts see the question and we. Allison Transmission Detent Lever / Neutral Safety Switch. Going up hill fine, loses power check engine light on. 5-10 LMM Duramax Powertrain > Allison Transmission P0700 Code Help Reply Page 1 of 2. Automatic Transmission 2010-18 6. ATS Upgrades for the Allison 1000 Transmission. the truck is a 2009 with efi live for dpf delete, egr off, egr block plate in and an afe intake to the turbo with the dry filter. Allison Transmission with DTC P0700 & P1779. 5-2010 Duramax Diesel LBZ LLY LMM (Black) 4. 2006 duramax check engine light ON, only code i get is P0700 , what is this for? , this reappears every winter, THANKS Duramax - Diesel Truck Forum - TheDieselGarage. 4WD Chevy Gmc Duramax with Allison Transmission Code P0735 5th Gear ratio. Diesel Insights: Knowledge is Power. any help would be great on under standing this code and what i might can do. Duramax Problems Common Problems with the 6. P0700 Meaning The Transmission Control Module (TCM) monitors the malfunction of sensors and actuators relating to transmission control. is there something going on here. P0700 and P0735. so i started throwing a p1093 code yesterday when i was on the road. For a P0700 the only real solution is to acquire a scan tool that will communicate with the transmission control module. tried to clean it but didnt help. We have a completely rebuilt LLY Duramax. Description: This XDR EGR upgrade Kit with High Flow Intake Tube for 2004. Your Duramax high-pressure fuel system relies on several electronic components and sensors for proper operation. With the 6. I have a 2010 lmm/allison 4x4 with dpf delete and running H&S Mini Maxx on no power tune, I only have 15k miles on it, at 14k the Rear diff was 2010 Lmm throwing P0700 Code - Chevy and GMC Duramax Diesel Forum. Had four codes,P0571,P0677,P0700&P0960 ,cleared the codes. Trouble code P0700. Tips on performance, fuel economy, troubleshooting and more. Summary: My transmission throws code P0700 and locks into whatever gear I'm in at the time if moving. Last week i was on the interstate and doing about 70, went to overtake a car and as soon as i increased the throttle (didnt floor it, just a slight pressure) it shifted HARD, like shook the truckcheck engine light came onthe whole shebang. codes P0700 and P0756 show. If you google the GM DTC P0727 you should be able to find the exact location of the engine speed sensor, two-wire sensor at the top of the bell housing. While the Allison 1000 was a big step forward, it still needed improvement. 5-2005 GM Duramax LLY applications. tuner is almost always on stock or 1. COM tunes both the ECM and the TCM in Duramax diesel engines. Started engine, 0700&0900 returned. rdl y bridge and cold side pipe. Are their any pictures for a duramax engine? GM. These are stored in response to a problem found in the truck by the system. Trouble code P0700. DTC Codes P0734 and P0735 appear on scan. Truck still has same problem. I also replaced my fuel filter housing because the truck was loosing prime. Since DTC P0700 simply refers to a fault in the TCM, further diagnosis is necessary to determine the TCM DTC and the nature of the fault. This creates some confusion as the 06 LLY is distinctively different from the 04. Sometimes it starts and sometimes it doesnt. When the shifter in Park and the transmission in park, the computer thinks the truck is in gear. 5-2005 (LLY) Discuss the second generation (2004. put a new mass airflow sensor in and was all good and now a year later the p0101 is back with same power reduce going on. Trans Problems - Need help for a friend ASAP Not having much luck searching through the forums. In 2006 the Duramax changed again. 2001 Chevy SB/CC Duramax LB7 Garrett GT4088R from PPE, PPE Duel fuelers, PPE Tuning, PPE stage 4 transmission w/suncoast 1056 converter, PPE Lift pump, Fabtech tie rods, Black Eagle alloys. P0700 is the TCM requesting a MIL (Malfunction Indicator Light aka: "check engine"). lly duramax | lly duramax | lly duramax problems | lly duramax issues | lly duramax transmission | lly duramax y bridge kit | lly duramax cp3 pump | lly duramax. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it. 2005 Chevy Duramax won't crank 31 Answers. Here is a list of Chevy Duramax diagnostic codes to help you in figuring out what is wrong with your vehicle. 0 out of 5 stars 2 $180. 04 duramax with P0700: transmission control system malf. 02 chevy duramax dtc# U1000 what does this code mean. car shuts off 10 times a day ive replaced cam and crankshaft sensors, purge solenoid, plugs, tcm,and pcm and still same stuff. We stock tens of thousands of parts ready to ship the same day. The Allison 1000 transmission is a 5 speed automatic with a single disc lock-up torque converter. rdl y bridge and cold side pipe. ive looked up common remedies for this and so far ive gotten shim it or put a race valve in, change the fuel filter, or get a lift pump. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM. 5 LBZ & LLY) of the 6. Brief description of our problem, Started truck w/o problems drove it for about 15 minutes, parked it let it idle for approx. tried to clean it but didnt help. Trans Limp Mode (typical on '01-05 Dmax): When engine power is added to a truck the potential to slip the transmission clutches rises. p0700 - TCM Request MIL P0768 - Shift Solenoid "D" Electrical P0763 - Shift Solenoid "C" Electrical P0773 - Shift Solenoid "E" Electrical P0841 - Pressure Switch "C" Stuck Open/Performance P0871 - Pressure Switch "E" Stuck Open/Performance The codes mean there is an electrical problem or a bunch of valves are stuck. Is the transmission code problem the cause of the pickup not starting?. The problem is when you are in the throttle the truck throws a code for low fuel rail pressure. 6L Duramax Installation Instructions 1054745 GMC/Chevy Duramax 6. P0700 U0073 Gauges go to 0 low fuel/security/cel light come on?!?! Problems and Solutions Bad Transmission? - Chevy and GMC Duramax Diesel Forum www. OBDII Codes 2006 Chevy 2500HD w/ 6. These are stored in response to a problem found in the truck by the system. P0700 and P0735. The scanner reads a PO299, turbo underboost, that's the only code it shows. As a leading manufacturer of performance and extreme automatic transmission parts, their first priority is to deliver the best possible products to meet the demands of the strictest requirements. You may have to register before you can post: click the register link above to proceed. I'm a 12V Cummins guy so I have no idea when it comes to the Dmax/Allison trucks. 2006 chevy Silverado Duramax diesel service codes U0100 and p0700 2006 chevy Silverado duramax diesel The check engine light came on and the transmission shifts as if it is in trailer mode U0100 and p0700 codes came up Vehicle is stock Can anyone tell me how to fix it. Also known as a PRNDL switch. This code is a fairly simple one. This creates some confusion as the 06 LLY is distinctively different from the 04. com, the official website of Diesel Power Magazine. 2018 · The Duramax LLY is a favorite for many diesel fans but it has its issues, like overheating problems related to a poorly designed air intake from the manufacturer. New to the Forum. The first time I hammer on it for the day, fuel rail pressure jumps to 26,000 for about 2-3 seconds, but then falls off to 10,000 and won't come back up. 30 minutes, put in reverse and it simply died. I'm a 12V Cummins guy so I have no idea when it comes to the Dmax/Allison trucks. Fits All the Below Automatic Models. You may have to register before you can post: click the register link above to proceed. Duramax GM Speed Sensor Set. Duramax Third Generation: 2006-2007. Using TCM tuning in conjunction with our ECM tuning yields the ultimate combo for consistency and driveability. a year ago it had the p0101 and power reduce mode with the stock air intake. Hi everyone new to the world of diesel Pickups. 6L Duramax LLY Duramax LLY Specs & Info. The Allison 1000 transmission is a 5 speed automatic with a single disc lock-up torque converter. i couldnt go more that forty five for a little while and everytime i would give it gas my rpms would dive. 2006 LLY engine discussion also belongs in this forum due to the similarities of the 2006 LBZ and the 2006 LLY. I am on the receiving end of continuous calls over the past few years inquiring what to do. What Does P0700 Code Mean? OBD-II Code P0700 is defined as a Transmission Control System Malfunction. The 2006 LLY and LBZ engines are essentially the same when it comes to. Use your VIN to verify if your engine is an LLY or LBZ To verify, check the 8th digit in the VIN number:. Re: p0700 & p0872 on 04 GMC duramax with Allison trans Post by JuddW » Thu Oct 04, 2018 10:07 pm I have same codes that just popped up and after not being able to get the trans to go into drive or reverse until the truck warms up I took it to a trans shop and they replaced the C switch in the pan. Starting to show it though (new T-stats needed, transfer case half replacement, and few others). This kit completely replaces the entire EGR system and can be installed in 6-8 hours without removing the intake manifold. any help would be great on under standing this code and what i might can do. im just posting to see if you guys have any ideas or advice on resolving this issue. Stop for a while light off next big hill same thing. - PRNDL display may not show up or flash. You may have to register before you can post: click the register link above to proceed. Automatic Transmission 2010-18 6. The truck sat for that time and the wife did start it every few weeks. com discusses Limp Mode in depth. it involves the p0401, p0403 codes. 6L Duramax Diesel. Diesel Insights: Knowledge is Power. Truck now has 258,000 miles. The 2006 LLY and LBZ engines are essentially the same when it comes to. Description: Dewhel Billet Turbo Resonator Plug Cover Cap For Chevy 2004. When this sensor goes bad, you'll likely get a "shift range inhibited" message on the message center along with a flashing light under the gear or range you are attempting to shift to. Tips on performance, fuel economy, troubleshooting and more. Many model years were crossover or transitional years for the Duramax diesel, thus it is often necessary to decipher the engine model/version using the vehicle's VIN number. 5 (LBZ & LLY) Discuss the third generation (2006-2007. - No Start condition - Sets DIC codes MAY suggest the NSBU as the cause: P0700, P0708, P0847, P0872, P0875, P1711 and P1713. Duramax LBZ and LMM P0087 Low Fuel Pressure code Summer comes, temps rise, and the working trucks with relatively high miles start to set a P0087 code and go into limp mode while towing. I also replaced my fuel filter housing because the truck was loosing prime. For a P0700 the only real solution is to acquire a scan tool that will communicate with the transmission control module. I'm a 12V Cummins guy so I have no idea when it comes to the Dmax/Allison trucks. Using TCM tuning in conjunction with our ECM tuning yields the ultimate combo for consistency and driveability. You may have to register before you can post: click the register link above to proceed. Also taking the brake fluid cap off and checking the fluid level, and just reseating the cap may turn off the code. It tells you the door is ajar and the daytime running lights are on while in park. Installed new glow plug & brake light switch ,checked all the plugs for moisture or corrosion ,all looked fine. Allison Transmission with DTC P0700 & P1779. Best Answer: One sign of a TCM problem existing is the transmission acts up and then if you disconnect the battery for 5-10 mins and restart the engine , then drive it and it seems to work much better till it occurs again. Chevy/GM Duramax Diagnostic Trouble Codes (DTC) Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. Possible Solutions. May also have a trans overtemp code. com › … › 04. I have a feeling the trans pan is going to removed. For a P0700 the only real solution is to acquire a scan tool that will communicate with the transmission control module. 2004 chevrolet duramax coolant resevoir reading low coolant level - low coolant level reading on dash instrumentation low on coolant in resevoir. Many model years were crossover or transitional years for the Duramax diesel, thus it is often necessary to decipher the engine model/version using the vehicle's VIN number. 6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. P0700 is a diagnostic trouble code (DTC) for "Transmission Control System Malfunction". However this doesn't rule out the possibility of a failed PCM or TCM (unlikely). Was getting off the freeway and came to a stop and went to take off and lots of rpm and very little mph, then the cel came on. Want Answer 0. When the shifter in Park and the transmission in park, the computer thinks the truck is in gear. Rules & Guidelines: All posts must be Duramax related. Replacing the NSBU Switch Powertrain - Engine, Transmission & Differentials - LLY Replacing the NSBU Switch - DIESEL FORUM - ALL DIESEL FORUM DIESEL FORUM - ALL DIESEL FORUM > GMC and Chevy Diesel Forum - Duramax Forum > DURAMAX TECHNICAL ISSUES - TROUBLE SHOOTING > 2ND Generation Duramax [LLY] > Powertrain - Engine, Transmission. The truck as 24K on the clock and the dealer has changed the fuel filter several times, the injectors, the pump, the glow plugs. 5 LBZ & LLY) of the 6. No Warranty, sold as is! Please text me at: show contact info. I am on the receiving end of continuous calls over the past few years inquiring what to do. Engine related discussion ONLY. I have a 2004 duramax that i reciently changed the fuel line that goes from my fuel sending unit to my steel feed line. im just posting to see if you guys have any ideas or advice on resolving this issue. If this is your first visit, be sure to check out the FAQ by clicking the link above. What is code P0700 on my 2006 Chevy Duramax 2500HD and what…. A buddy is having the following symptoms on his 2001 2500HD 4wd Duramax / Allison: -Service engine soon light -ABS light -Parking brake light -No speedometer function -No reverse -When I put it in drive, I think it is in 3rd (whereas when it failed on Sunday, it stayed in low) He recently cleaned what he thinks to be the speed sensor (on the output housing of the transfer case) but it did not. There are a few 2006 models that are labeled as an LLY, however they have all of the LBZ upgrades from the factory, so for performance applications consider those an LBZ. Duramax LLY Overheating Solutions - YouTube. The scanner reads a PO299, turbo underboost, that's the only code it shows. A p0700 is a general tranny code you need to have a scan of the tranny to find out what is wrong it will be electrical but needs a complete scan most of the time trany shops have a free diagnostic, this should also show up the p0735 number which is the 5th gear incorrect ratio so its more than likely to be an electrical rather than a mechanical faulthope this helps. 5-05 LLY - Page 14 - Diesel Bombers Log In. 6L Duramax Harmonic Balancer Sale! $ 309. 7L Cummins, Holset unveiled their Variable Geometry Turbo (VGT) with integrated exhaust brake.