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Professional Automotive Repair Technical Discussions for November 5, 2012 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1997 Cadillac Seville SLS 4.6L dashboad illumination Vehicle came in with complaint of no dash lighting upon inspection found no running lights also. Checked output from headlight switch no output to running lights. But had signal to instrument cluster {ipc} as was confirmed by the scanner. Scanner data at ipc s... |
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| 2002 Cadillac Escalade 6.0L heater air VIN: 1GYEK63N72 This Escalade has cold air coming in by the recurculation door. when the fan is on low is when you feel it the most.the gaskets around the door and heater case all feel like they are in place and in good shape. Even when the heater is on high heat and it is co... |
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| 1993 Chevrolet Corsica LT 3.1L Stall VIN: 1G1LT53T5P This one is strange,after warmed up engine will start and run until you start to roll then dies. I verified that it is vss related,with tires off ground in nuetral if you slowly rotate a front tire it stalls. Dissconnect the vss at trans and all is well. I don... |
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| 1994 Chevrolet Lumina Euro 3.1L Hesitation, Misfire, Poor Fuel Economy VIN: 2G1WN54T9R This car is belongs to a tech in my shop. When trying to accel it develops a miss and will start to backfire through the intake. It had an egr code so he replaced the egr valve. We removed the intake and checked the injectors. They were all around 11.7 ohms wh... |
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| 2001 Chevrolet Impala LS 3.8L Cuts out, Stall VIN: 2G1WH55K61 Customer reports vehicle dies while coasting along around 25 MPH and vehicle is cold. Verified problem, no check engine light, but code was stored: p0103 - mass air flow circuit signal high. MAF tests ok at this time. Suspected MAF signal out of range or ignit... |
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| 2004 Chevrolet Silverado 1500 LS 5.3L Mode Actuator VIN: 2GCEK13T34 My customer stated that her system is stuck on defrost. I found code B0263 and when I clear it the mode actuator dose a full sweep range of motion then stays at defrost and sets the same code. I clear the code and it dose the same thing. I'm a bit lost. The fu... |
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| 2010 Chevrolet Traverse LT 3.6L multiple door locks, heating, lights, blown fuses, VIN: 1GNLVFEDXA This vehicle belongs to a family member and they have had it at the dealer several times with no fix. The door locks start locking and unlocking by themselves. The heater controls come on & off on high by themselves. The lights all start flashing by themselves... |
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| 2002 Pontiac Sunfire SE 2.2L No Start VIN: 1G2JB52F32 car was running fine, wouldn't start today, no communication to pcm? No spark, no fuel pump, pump OK, power to ign module and pcm. checked all fuses, jumped pump relay to check pump, removed ign module, power to it and no signal, scan tool(s) have no communica... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1997 Chevrolet Monte Carlo Z34 3.4L Cooling Systems VIN: 2G1WX12X2V It was the waterpump. the pump I pulled off was a cast impeller with 9 blades, the new ac delco pump I put on was 5. Jason at sams found the 2 pumps, why they make 2? I don't know. If you do one of these, the cast impeller pump #252-721, the one they stock at ... |
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| 1999 Chevrolet Silverado 1500 5.3L ABS pump VIN: 2GCEK19T4X As so many suggested, it was the module. The owner opted for a new one and everything is swell now. Thanks again for the prompt responses and accurate information. Much appreciated. |
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| 2006 Chevrolet Trailblazer LT 4.2L headlamps VIN: 1GNES16S26 Thanks for the help guys, it was the headlamp relay. cant believe i overlooked the relay in the schematic. overthinking on an intermittent problem and come out with guns blazing |
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| 1993 Geo Storm 1.6L Stall VIN: JB1RF2360P Customer has no money, not much else to do. told customer he is welcome to pay to have the ecm sent out and tested, but im not using my money. |
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