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Professional Automotive Repair Technical Discussions for February 19, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1990 Cadillac Allante 4.5L Cuts out VIN: 1G6VS3387L This old car's engine always stop silently after 5 minnute running. And start is no problem, and stop again after 5 min. E041 code is history code. After erasing the code, it never came back again. I checked hoses, wires, and grounds, but look so good. Please ... Trouble codes: E041 (Cam sensor circuit) |
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| 1996 Chevrolet Blazer 4.3L Mechanical VIN: 1GNDT13W2T i began working on this truck a while back.when it came in it had low fuel pressure.i changed the pump.the problem that i am having is that in the morning after siting overnight.when you turn the switch on the fuel pressure will go to 55 pounds.check battery .... |
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| 2001 Chevrolet Suburban 1500 LT 5.3L Hesitation, Misfire, MIL Lamp on VIN: 1GNFK16T21 I have had intermittent problems with this truck for a while now. I have replaced the spark plugs and wires, done a complete fuel injection service, checked for vacuum leaks, checked compression as well as for possible broken tappets. The truck ran well for ab... Trouble codes: P0300 (Random missfire) |
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| 2006 Chevrolet Silverado 1500 LT 5.3L engine VIN: 1GCEC14Z56 Hello this truck has a misfire at idle on cylinder #1 and slight miss on cyl #8 at idle if the idle is raised to around 900 rpm the miss goes away looking at the miss on my otc scanner. I removed the valve cover on bank 1 and checked the valve springs looked ... |
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| 2000 GMC Jimmy Diamond Edition 4.3L blower /headlights VIN: 1GKDT13W5Y jimmy runs fine, no gas gauge, battery light on but charging ok abs light on , air bag light on blower motor runs with key off somtimes,secrity light on blinking but somtimes on stedy canot communication with all module,s all fuse,s ck good unpluged bcm stll s... |
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| 2004 Pontiac Grand Am GT 3.4L Excessive Emissions, Poor Idle Quality VIN: 1G2NW52E74 Quick question, rich condition on a 2004 Grand Am (3.4). Got the car today half hour before closing put a battery in it and just happened to notice LTFT at -29% - no SES - no codes (YET). Pulled the fuel pressure regulator vacuum line - no change, no signs of... |
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| 2006 Pontiac Grand Prix 3.8L MIL Lamp on VIN: 2G2WP55276 Customer came in with CEL on found P0172 and performed basic checks found fuel pressure and volume to be normal all engine data looked normal, ECT was correct and HO2S was switching rapidly and would go low and high when induced. The LTFT however would be -20/... Trouble codes: P0172 (Rich limit reached bank 1) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1994 Buick Park Avenue 3.8L Poor Idle Quality, Stall, MIL Lamp on VIN: 1G4CW52L4R Thanks to all who replied. I put a new GM ECM in this vehicle & the codes were gone. I still had a torque converter code that would not go away but the customer was not concerned with that. I replaced the plug wires & fuel filter also. Car ran great. Thanks... Trouble codes: P0321 (p0341-), P0341. |
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| 1996 Chevrolet Tahoe LS 5.7L Low Pedal VIN: 1GNEK13R9T Ok so this one is fixed. We replaced both front calipers and that did not help anything. So I'm a little perplexed as to why the pedal would move/not move when front brake lines were pinched off. Like most of you said there may have been trash in the ABS pu... |
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| 2000 Chevrolet Blazer LS 4.3L No Start VIN: 1GNCS13WXY Hi gang. I really appreciate all the responses to this issue. First thing this morning, I pulled out the RPT distributor and warrantied it out. I discovered when the replacement RPT distributor went back in, the rotor actually advanced just a little bit. I hoo... |
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| 2003 GMC Envoy SLT 4.2L Air suspension VIN: 1GKDT13S33 Thanks for all the replies, we ended up converting to coil springs. One thing we did notice was when we removed the air bags we found a pin hole leak on the very top of the one bags. We checked multiple times for leaks and never found one but as soon as we rem... |
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| 2003 GMC C4500 Topkick C4C042 6.6L Cuts out VIN: 1GDE4E1103 IT'S FIXED!!! What had happened was that the truck had been hit in the front and repaired at the body shop. When it was put back together, the kid couldn't see the coolant sensor that is made into the bottom of the coolant tank! He zip tied the "extra" conne... Trouble codes: P0540 (Intakr air temp). |
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| 1996 Oldsmobile Cutlass Supreme 3.1L powersteering pump VIN: 1G3WH12MXT I just got a new power steering pump and replaced it,now the car is fixed and the door.Thanks to everyone for the advice.see you soon. |
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| 2006 Saturn Ion-2 2.2L instrument cluster VIN: 1G8AJ55F46 Thanks to all who replied.After checking all powers and grounds,scaning the bcm and no comunications with the cluster,this problem wound up being a bad cluster. |
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