2002 Duramax P0776, Any Ideas where to start looking? Thanks

2002 Duramax P0776, Any Ideas where to start looking? Thanks A P0776 code is considered a serious code and should be repaired as soon as possible as it can cause the transmission to slip or shift erratically, which can lead to further transmission damage. If the computer is unable to properly control pressure control solenoid ‘A’, then it will store a P0746 diagnostic trouble code. How do you handle the issues that can arise when they malfunction? Repair Information for P0776 code. What trips the code: How to easily diagnose, repair, and symptoms and causes of a P0776 code that indicates a detected stuck off condition or performance problem with the B pressure control solenoid. drove it home 10 miles is first gear. Here's what causes it, whether it's safe to drive, and step-by-step instructions to fix it. I got it cheap because it would not move for the previous owner and he assumed the transmission was fried. the unitworked ok cold on light throttle, slipped going into 4th and fail safe onto 3rd on heavy ac One of the most common problems with the Chevy Silverado is when it throws the P0700 trouble code. Drivers who encounter a P0776 code usually notice that the transmission no longer shifts smoothly. All ALLISON 1000 questions answered by experts This morning I was going to work and let off to go around a round a bout. Since the ECU relies on pressure control solenoids to control shifting, a P0776 DTC means you will likely experience problems ranging from slipping to engine stalling. You were helping me on a 2002 Silverado HD 2500 with Duramax diesel engine and Allison automatic transmission back in Test 3-11 Circuit Description for Allison Automatic Transmission Important: DTC P0776 was previously P1721. . It ran fine then i parked it for about 2 months. Apr 4, 2016 · P0776 indicates a tie up in 2 gears at once for a second. Check the transmission fluid for contamination or low levels and perform a fluid flush if necessary. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! The P0776 code is triggered when the Pressure Control Solenoid “B” is not functioning correctly or is stuck in the “Off” position. Seems to drive fine and doesn’t shift hard or slip. thanks 2007 GMC Sierra 2500 LBZ. Look up your transmission model by vehicle make and model. RDL Manifold, up pipes. 50 nitto trail grapplers, 17x9 xd spies all work done at home :neener Building a gas engine and need a dry sump oil system?check out A. Although generic, the exact repair steps may v Perform a diagnostic scan to confirm the P0776 code and identify the specific issue. Jump to Latest 516 views 4 replies 2 participants last post by Ssgmatt Dec 17, 2024 Ssgmatt Discussion starter P0776 and Awful noises Jump to Latest 3. It is shift timing, not solenoid. Already cleared the codes a couple of times, but keeps acting the same. A vehicle that logs a P0776 code can show symptoms like an illuminated check engine light, the power control module (PCM) activating limp mode, and the transmission slipping while shifting between gears. Mar 2, 2011 · The TCM takes readings from the turbine speed sensor and output speed sensor and determines when the shift should occur. Common causes of the P0776 code include contaminated transmission fluid, clogged transmission fluid filter, and a bad pressure control solenoid. Could be clutch clearance, speed sensor, or transfer case tone wheel. Checked the fluid and looks brand new still, no signs of clutch OBD-II Code P0776 is defined as a Pressure Control Solenoid "B" Performance/Stuck Off The Transmission Control Module (TCM) uses Pressure Control Solenoids to control the hydraulic pressure in the transmission which is needed to apply the various clutch packs in the transmission that provide the different gear ratios needed to efficiently You could be slipping C2. got code p0776 when i tried to go through the gears for the first time. What would cause this and how could i fix it. I was only going about 20. ” This code is set when the pressure control solenoid “B” stops properly functioning or becomes stuck in the off position. com gold star of excellence award Fix the P0776 code swiftly by checking fluid levels and inspecting solenoids; learn how to diagnose and repair this issue efficiently. This is a generic transmission diagnostic trouble code (DTC) and typically applies to OBD-II vehicles equipped with an automatic transmission. Tie rod sleeves, Straight Centerlink So I today I was driving my truck and i put my foot to the floor and then when it seemed like it went to shift it felt like the whole truck locked up for a second, nothing seemed to have broke, truck seems to be driving normal now but it sure felt bad, now i have a P0776 code, i was reading P0776 is a clutch coming on too soon before the exiting clutch gets out of the way. The truck through a P0776 code. Its a 2006 lbz W/Allison 6 speed. A trouble code is a code thrown out by an automatic transmission whenever it detects that there is an issue going on. 1K views 8 replies 2 participants last post by scotro95 Oct 18, 2013 S Duramaxdiesels. What repairs can fix the code? The following are solutions that may fix this problem: Repair or replace any faulty parts such as wiring, connectors, or How to easily diagnose, repair, and symptoms and causes of a P0777 code that indicates a detected stuck on condition of the B pressure control solenoid. Learn what Pressure Control Solenoid 'B' Performance or Stuck Off means, location and how to repair. This list has been updated to includes Chevy/GM Duramax diagnostic trouble codes. How hard are you in the throttle when you shift 3 to 4? My guess is the shop used a service tool to command through all the ranges at idle. What does that mean or is there a list where I can look it up? Thanks. com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. I drove for another day until the code p0776. It had roughly 8-10 trans codes. 5L EJ25 Timing Belt Replacement | EJ25 Water Pump and Thermostat Replacement I have an 02 Duramax with an ongoing transmission problem, and I'm baffled. A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. When the tranny temp is under 150 it runs fine except for hard downshifts, but in warmer weather and/or when the tranny temp gets above 150 as I'm decelerating or coming to a stop the tranny will limp and throw the p0776 solenoid b code. I generally run either Driving in the rain this morning, several miles down the road the transmission began acting strange. Plugged into the computer and have an absolute boat load of codes for TCM. In the winter time it runs pretty well. 2002file8 Error Code P0776 Jump to Latest 9. I have the optimized stock, heavy tow,, 60 hp boost,100 hp boost, & 120 hp boost tunes set up for DPS stock and DPS Race. just getting back into it it wont go into gear just says shift range inhabited so i changed the nsbu didnt do anything so i changed the ignition switch and now it goes into grear somtimes i just cleared the tcm and went for a drive. 2002 LB7 Duramax Just bought this Duramax this week. that's all I got for now, thoughts? thoughts?? Get ALLISON 1000 transmission rebuilding tips, ALLISON 1000 troubleshooting help, ALLISON 1000 technical service bulletins, ALLISON 1000 diagnostics and ALLISON 1000 technical information from TRNW. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! HAS ANYONE THROWN THIS CODE??? P0746 Pres Ctrl Solenoid Perf/Stuck Off I HAVE SEEN A COUPLE GUESSES ON HERE, BUT NO REAL ANSWERS. Symptoms Symptoms of a P0776 include: Check engine light Harsh, delayed or erratic shifts Slipping in-and-out of gear Engine stalls Getting stuck in gear Vehicle won’t move 02 duramax w/allison trans threw a P0776 code truck would not pull forward unless in 4 wheel drive. The P0776 trouble code technically means "Pressure Control Solenoid B Performance or Stuck Off". E drysump. Learn what Clutch Pressure Control Solenoid 2 Stuck Off means, location and how to repair. P0776 – Pressure Control Solenoid ‘B’ Performance or Stuck Off P0778 – Pressure Control Solenoid ‘B’ Electrical P0779 – Pressure Control Solenoid ‘B’ Intermittent Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Just got my PPE stage 5 installed and back in the truck. TRUCK RUNS GREAT, HAVE ONLY THROWN A COUPLE RANDOM NON-TRANNY RELATED CODES BEFORE. This is a great place to start diagnosing P0700 for LB7 & LLY Allison equipped HD trucks. 2002 LB7 Hard shifting, limp mode, not going into reverse. 5 Duramax LLY Crew Cab 4x4 4" Turbo Back MBRP SS Offroad Series AFE Stage II Cold Air Intake with ported mouthpiece Edge Juice with Attitude 33" BFG All Terrains Plugged Turbo Resonator EGR Blocker and Fingerstick Readylift Leveling Kit with Rancho 9000 in rear Rhino Liner Auxiliary Battery Setup HID Headlights Sound System Reply Like M About 2 weeks ago I did routine maintenance to my 2002 Duramax (100% original stock, no upgrades or controllers ever) including drain & fill transmission fluid and changed spin-on filter. The P0776 diagnostic trouble code (DTC) indicates that there is an issue with the Pressure Control Solenoid 'B' in the transmission control system. I'm new to the Duramax world and haven't even had a chance to introduce myself yet. THIS CODE HAPPENS AT 87MPH P0776 indicates an issue within your transmission. Hope you didn't bend the tone wheel on the front drum. Ridge Runner Tuned Built motor and trans. At Thoroughbred Diesel we are a real diesel performance and repair shop that offers free advice. Inspect the pressure control solenoid 'B' for proper operation and electrical connectivity. It means the on coming clutch during the shift was too quick to apply while the off going clutch released. Went to hit the gas again and the engine only revved then went into gear after a few seconds and the check engine light came on. Made clunking - Chevrolet 2002 Silverado 2500HD question CHAD : 2002 CHEVROLET 2500HD ec/sb 4x4: Has enough to help me do the speed limit 30% exergy,s366,alligator stage 5, Idaho rob, arp studs, 6" tuff country 35x12. Microsoft Word - 2002file8. fighting me after housing replaced help. Outside of that drives pretty good. Once I come to a complete stop it will We recommend Torque Pro Table of Contents What Does Code P0776 Mean? What are the common causes of code P0776 ? What are the symptoms of code P0776 ? How do you troubleshoot code P0776 ? Codes Related to P0776 Get Help with P0776 What Does Code P0776 Mean? SPECIAL NOTES: Non-professional mechanics should note that if code P0776 occurs on an application with a “filled-for-life” transmission My '02 dmax is throwing a code P0700. I decided to drop the pan and change the filters and fluid DTC P0776 sets when the TCM detects the on-coming clutch did not maintain engagement after 2 seconds during the range shifts that require PCS2 to control either C2 or C3 clutch. The truck then won't shift into higher gears until you flip the Microsoft Word - 2002trans10. doc How to easily diagnose, repair, and symptoms and causes of a P0746 code that indicates a detected stuck off condition or performance problem with the A pressure control solenoid. Example of a transmission pressure control solenoid: What is the severity of this DTC? Initially, the severity of this code is moderate, but if not addressed promptly, it can escalate to a more severe level. Dec 19, 2024 · Diagnostic trouble code (DTC) P0776 stands for “P0776 Code: Pressure Control Solenoid B Perf / Off. The pressure control solenoid is responsible for regulating the hydraulic pressure within the transmission, which is crucial for proper gear shifting and overall transmission performance. Pressure control solenoids are spring-loaded devices that the engine/transmission control modules use to direct the flow of pressurized transmission fluid to change gears. 1L GAS with a Allison 5spd transmission, 135,000 miles I’ve owned it for 4 years and just over the last month it has started to intermittently throw a P0776 code. any help would be great. I recently purchased my first Duramax as a mechanics special. This solenoid is referred to as a Pressure Proportional to I have a 2008 Cheverolet Silverado 2500 HD Duramax. Here's exactly what you need to do to fix it. That may include but is not limited to vehicles from Ford, Mercury, Lincoln, Jaguar, Chevrolet, Toyota, Nissan, Allison/Duramax, Dodge, Jeep, Honda, Acura, etc. My 2003 2500HD had the abs, brake light and service brake lights all come on right after that the service engine soon codes came up, p0700 and p0776 and ran like crap felt like tyranny slipping but not free The clutch being controlled by PCS2 varies depending on the shift that was being completed. Final diagnostics should always be done in person by a professional. R. I RUN IN TUNE 4 AND DO NOT RUN THE TRUCK HARD. In the case of the P0700, it is a general code. doc *TABLES Clutch Pressure Control Solenoid Valve Testing and Replacement P0746 P0747 P0776 P0777 P0962 P0963 Subaru 2. Garrett 4202. Jump to Latest 602 views 2 replies 3 participants last post by Ron Nielson Nov 27, 2024 P P0746 code means the PCM has detected an irregularity in the electronic pressure control solenoid circuit often due too blockages or low fuel levels. 2004. 1st is fine then it seems to slip or just rev up and then stuck The P0776 code may be solved by a simple transmission fluid change, but if you’ve already changed your transmission fluid and you’re still experiencing problems, chances are that you’ll need Below are common check engine light trouble codes for the Chevy/GM Duramax diesel. I installed a EFI Live Tuner on it about 5 years ago and removed the stock exhaust and DPF filter. 2002 Chevy Silverado 4X4 - VIN# 1CGHK23G92F117982 (PCM VIN: 1GBJC39G71F100063 appears that the PCM has been replaced at some time before I bought the truck) 8. Trim Solenoid B is used to control on-coming, off-going, and holding pressure to any one of the five clutches. ACTION TAKEN WHEN THE DTC SETS: When DTC P0776 is active, the following conditions occur: A P0776 code is a diagnostic trouble code that relates to the transmission pressure control solenoid, which regulates the hydraulic pressure in the transmission. We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. Builders 3y · Public 2002 Silverado 2500hd Duramax have 40” tires been on for a year or two but haven’t drove it a lot and also have had a ppe tuner on it for 7 years on level 7 it finally started limping wince it try’s to shift to 4th it will shift 1-3 fine but if it shift to 4th limp. If the feedback it gets is wrong; the TCM has trouble commanding the shift and will throw a P0776/P0777 code. The vehicle may jerk when moving from first to second gear, hesitate before engaging third or fourth, or remain stuck in first or second despite higher engine speeds. Took off from a stop sign it shifted up to 3rd, then it downsifted back to first. Got P0776 & P0700 code have pulled pan off and This is a 2006 6 speed third generation Allison LCT 1000. About a day and a half later I started getting delayed & hard upshifts. exteneded cab short box. We are a authorized Cummins dealer, call us for diesel parts: Shift solenoids provide a huge service for your vehicle when it comes to shifting gears. The P0776 tells you that on the shift from 3 to 4 the trans was unable to make ratio. Truck has been acting odd recently, has a hesitation to shift from 3-4, and then will slam 4th. Only thing I notice is when you start pulling a hill it’ll kinda lag a bit like it should downshift but doesn’t and when it does then it’s slightly high rpm’s. When it does this hesitation if you let almost completely off the accelerator it will shift into 4th and then keep going, if you keep your foot where it was it sticks into 3rd and throws P0776. PPE Dual Fueler. Call us at 1-859-737-4966 with any questions you may have about your diesel. Driving down the highway and tranny shifted from six to fifth and wont shift out of fifth. This means that it I pulled P0700, P0735, P0732, P0776 I can say right now, the tranny doesn't slip at all, it holds great, and even in performance with trailer on it doesn't slip at all. 5K views 9 replies 4 participants last post by oilfieldtrash Jun 3, 2011 P Repair Information for P0776 Chevrolet code. DTC P0776 sets when the TCM detects an incorrect oncoming ratio (range-to-range) for an accumulated number of occurrences. fue9j, hbgo, njyf, 3se4l, 9wnzvr, jtzm, qevl, t7rv, 2dzzp, hytqo,