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Professional Automotive Repair Technical Discussions for September 26, 2012 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1997 Chevrolet Cavalier LS 2.4L Cuts out VIN: 1G1JF52T3V I know this has been addressed before but---an issue with this car is driving me nuts. I have no history on this car. It was an auction purchase. It has been running and driving great until we pulled the instrament cluster to replace a couple bad bulbs. Now wi... |
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| 1999 Chevrolet C3500 5.7L No Start VIN: 1GBGC34R8X See repair history |
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| 2002 Chevrolet Silverado 2500 6.0L MIL Lamp on VIN: 1GCHK24U22 Hi this truck came in with a double lean code cked fuel presure was low 48 psi tested and replaced fule presure reg and filter now I have 59psi code all 3 comes back long trims are at plus 25 checked for vac leak none found did see tsb for P0332 but cant see... Trouble codes: P0174 (lean bank 2), P0171 (Lean Bank 1), P0332 (Knock Sensor 2 Signal Short / Low) |
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| 2008 Chevrolet Aveo LS 1.6L MIL Lamp on VIN: KL1TD56658 Hey Guys, I just have a quick question. This aveo has a p0016 and p0340 as you can see from the other info I gave. The car runs fine. I ran a waveform on these and the correlation looks good based on a known good waveform I found in the data base here on IATN.... Trouble codes: P0016 (CKP-CMP Correlation), P0340 (Camshaft Position Sensor Problem) |
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| 2009 Chevrolet Malibu LT 3.6L Misfire, MIL Lamp on VIN: 1G1ZJ57799 Vehicle towed in. Would not start. Pulled codes Po300 and Po353. Removed front O2 sensor and got to run. Cleared codes and they came back. Swapped coil and plug from cylinder 3 no change. Scoped ignition control circuit at pcm have a nice square wave still no ... Trouble codes: P0300, P0353 |
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| 2000 GMC Yukon XL 1500 SLE 5.3L buzz or rattle noise VIN: 3GKFK16T8Y Customer complaint of a buzz/rattle noise since I replaced the fpr. It can be heard and felt in the fuel lines from the tank up to and including the fuel rail. If I remove and plug the vacuum hose the noise/vibration is gone, pressure is 60psi unregulated and ... |
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| 2003 Hummer H2 6.0L 1-2 Shift VIN: 5GRGN23U23 Hey Guys, So Ive been scratching my head for the last few hours on this one. Vehicle has 4L60 Trans. Vehicle seems to be stuck in first gear. Reverse works fine. Cannot manually select and get vehicle into 2nd or 3rd gear. Did notice that when I manually place... |
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| 1988 Oldsmobile Cutlass Supreme SL 2.8L Hesitation, Surge, Stall VIN: 1G3WS14W0J Need help one this one. Car came in, would start but as soon as you cracked the throttle it would lean out and die. Had a code 33 and 44 map sensor code and lean code. Check fuel pressure and it shows good at 35 lbs an with good volumn. This system has been up... Trouble codes: 33 (34 -), 34 (44 -), 44 (64 -), 64 (testing and results) |
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| 2004 Pontiac Bonneville SLE 3.8L ride VIN: 1G2HY54K64 This has been a tough one- it has caused us grief for a while (more than a year). It has an unusual and what I call a harmonic type of vibration- worst at 75 mph, which comes and goes in about 5 or 6-second cycles. Mostly noticeable in the floorboards or seat,... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2001 Chevrolet Tracker LT 2.5L Ammonia Smell VIN: 2CNBJ63461 Thank you to everyone that responded! I inspected for a mouse nest and found nothing. Additionally I did check battery and charging system and no problems found, no traces of acid either. I determined it was a bad cat but the customer could not afford it so he... |
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| 2006 Chevrolet Express 3500 LT 6.0L Hesitation VIN: 1GCHG39U16 customer doesn't want to spend any money sorry guys no fix Trouble codes: P0102, P0300, P0175, P0172. |
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| 2007 Chevrolet Uplander LS 3.9L transmission VIN: 1GNDV23167 Hey I agree with most of you, should be bebuilt, but I do whats asked of me these days. I tell them and they sign off and this vehicle has a bad radiator. It is too hot. They was told about this too and will sign off on work order they refused at this time. So... |
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| 2005 GMC Safari 4.3L Misfire, MIL Lamp on VIN: 1GKDM19X65 Thanks for everyones input and suggestions. the culprit was a defective sparkplug on #1 cylinder Trouble codes: P0300. |
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