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Professional Automotive Repair Technical Discussions for July 15, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2000 Buick Regal LS 3.8L MIL Lamp on VIN: 2G4WB52K8Y This vehicle has had a reoccuring P0440 code. The owner has had the Purge valve, vent valve and filler neck replaced but states the code keeps coming back. I confirmed the P0440 code and did a Evap leak/smoke test and found no leaks. Here is how I performed t... Trouble codes: P0440 |
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| 1991 Cadillac DeVille 4.9L Hesitation, no power VIN: 1G6CD13BXM Hello everyone, i need some help on this caddie its my grandmoms car, car came in with misfire bucking running rough, so i thought easy enough put plugs ,wires, rotor, cap, air. fuel filters and same thing ran like crap . so checked firing order all ok, so the... Trouble codes: E52, E99 |
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| 1997 Cadillac Seville SLS 4.6L Engine Block VIN: 1G6KS52Y7V Looking for a short block with all the threads been repaired. or one block to be rebuild. What I found so far is long blocks and used engines.We already spend money on a rebuild engine and the rebuilder did such a bad job that we have to remove the engine thre... |
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| 2001 Chevrolet Corvette 5.7L temp gauge VIN: 1G1YY22G61 Car's temp gauge will climb to 260F at times, PCM data str eam agrees with gauge. Nothing under the hood feels that hot and checking with an IR thermometer can find nothing hotter that abt 210f. We tired a new sensor with no change. After sitting over night, ... |
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| 2001 Chevrolet Monte Carlo SS 3.8L dead coil 2/5 VIN: 2G1WY15K41 Customer drove car in, engine missfiring badly,complaining of fuel smell and converter turning cherry red. Customer states he replaced cam and crank sensors, only to find wires chaffed/broken by serp belt. Obvious miss,three coils on module. coil 1/6 fires, 2/... Trouble codes: P1374 (CKP high to low resolution frequency correlation) |
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| 2002 Chevrolet Avalanche 1500 Z71 5.3L MIL Lamp on VIN: 3GNEK13T42 hello-had this avalanche come in today. p0449, p0452. removed vent valve from truck and bench tested it with 12v and it seemed to function as intended. apply 12v and ground and it seals shut. checked harness and have 12v feed at valve harness connector. re-ins... Trouble codes: P0449 (Evaporative emission vent solenoid control circuit), P0452 (Fuel tank pressure sensor low voltage) |
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| 2004 Chevrolet Malibu LT 3.5L turn signals VIN: 1G1ZU54864 vehicle came in with melted front turn lenses, we replaced bulbs with tsb recomended bulbs, and completed tsb for ground issues. it came back and we replaced with new headlight ass. once again and replaced bulbs once again. vehicle is now back a third time wit... |
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| 2004 Chevrolet Trailblazer LS 4.2L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GNDT13514 Thank you for looking at my post. I am completely stumped on this one. The truck came in with a complaint that the customer could not maintain freeway speed on any type of hill, low power at all speeds and a really rough running engine at times. I have been ab... Trouble codes: P0014, P0016 |
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| 2006 Chevrolet Tahoe LT 5.3L Air Bag Side VIN: 1GNFC13J47 All of the side curtain air bags blew while driving the truck. When it arrived at the shop there were 37 codes stored in various modules including serveral low voltage and lost comm codes. The battery is BAD and the neg terminal is corroded very badly. We had ... |
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| 2006 Chevrolet Silverado 2500 HD LT 6.6L shifting VIN: 1GCHK23D56 hey, I have a real tough one here, for me anyways. 2006 chevy 2500hd 6.6lt, 6 speed allison. Vehicle came in with internal transmission failure, as well as transfer case failure. replaced transmission and transfer case. After installing new equipment when truc... |
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| 2006 Pontiac G6 GT 3.5L battery VIN: 1G2ZH15896 Battery goes dead after 4 days. Parasitic draw is high @ 80 milli amps (.080a), but only when the vehicle alarm is set from key fob. Parasitic draw is normal @ 20 milli amps (.020a) if vehicle alarm is not activated. Draw can be eliminated by removing BCM fuse... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1990 Chevrolet C1500 WT 4.3L Mechanical VIN: 1GCDC14Z7L THANKS FOR THE SUGGESTIONS ...IN THIS CASE THE FIRST FLUSHING OF THE SYSTEM DID NOT WORK . THE SECOND TIME REVIELED A LARGE CHUNK OF METAL LODGED IN THE LOW SIDE LINE COMING FROM THE ACCUMALATOR.UPON REMOVAL OF THE DEBRIS PROVED TO BE THE CAUSE OF THE PROBLEM.... |
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| 1991 Chevrolet Camaro RS 3.1L No Start, Stall VIN: 1G1FP23T0M Finnally found E.C.M. Junction Fuse#3 Blown due to high amp draw on injectors. Quoted price for new injectors and possible E.C.M. to customer, repair declined. Thank You All !!! |
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| 1999 Chevrolet Tahoe 5.7L Poor Idle Quality, Misfire VIN: 1GENK13R2X Thank you to all that have replied. This customer is finished with our shop. He needed the vehicle and was going to return the next day so that we may finish the diagnostics. Unfortunatly it now has been a week and we haven't heard from the customer. After... |
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| 2006 Chevrolet Impala LT 3.5L Stall VIN: 2G1WT58K06 We have replaced the ecm and programmed it. Its on a road test now. The issue that is irriating by was that the diagnostic tree for this particular vehicle is somewhat confusing. It states that either module could be the culprit. I also failed to mention that ... Trouble codes: P0601. |
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| 2001 GMC Sierra 2500 HD SL 6.0L Misfire, MIL Lamp on, flashing mil VIN: 1GCHC29U01 Thanks for all the replies. After pulling the # 8 plug to perform a leak down test, the plug was wet. We replaced the spark plugs and # 8 coil. Truck runs great now. We had moved the coils and plugs with no change before. Mike Trouble codes: P0300 (Random misfire). |
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| 2004 Pontiac Grand Am SE 2.2L compressor VIN: 1G2NF52F94 thanks to all who replied. we changed condensor and high side line,blew out lines.line still freezes up,i am thinking we have a evaporator problem, customer picked up car and did not want to put any more money into it. |
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