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Professional Automotive Repair Technical Discussions for July 4, 2007 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1999 Chevrolet Blazer 4.3L a/c VIN: 1GNDT13W6X hey folks,i am at a loss with this thing!when the ac is on it still blows hot air no cold at all,we have replaced the heater control and both sensors in the air ducts and still nothing.by the way it has the computer controled climate system.any ideas would be ... |
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| 2002 Chevrolet Astro LS 4.3L Misfire, MIL Lamp on VIN: 1GNDM19X82 Vehicle came in for a CEL and misfire. The misfire was on cylinder 1. Performed compression test, Lab scope, leak down,checked crank sensor, MAF, Fuel pressure, switched injector to another cylinder with no change. Removed head and had head checked. Found a ti... Trouble codes: P0300 |
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| 2006 Chevrolet Cobalt LT 2.2L Pass Key III + (no start) VIN: 1G1AL15F76 I purchased this vehicle as a bank repo with a dead battery and without keys or electronic key fob. It has the PASS KEY III + security system. I have fully recharged the battery (the radio still has it's memory and works fine) I have had a new Master Key cut f... |
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| 1980 GMC C1500 5.7L No Start VIN: TCZ14A1540 We've got this old Chevy with a no start problem. Originally it was an intermittent no start/hard start back in winter. Now it was towed in as a no start. Temps here have been in the 80-90 degrees F all week, so glow plugs aren't coming on for long, but should... |
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| 1996 Pontiac Sunfire SE 2.2L Excessive Emissions, Poor Idle Quality, Misfire VIN: 3G2JB5240T hi, techs.I have this 96 sunfire run very rich .I disconnect the alternator field wire, the car runs good all data normal. I replace new gm alternator it does the same thing run rich,disconnect alternator wire it runs good again .I measure alternator ac volts ... |
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| 2000 Pontiac Grand Prix GTP 3.8L Misfire, MIL Lamp on VIN: 1G2WR5218Y The car came to our shop with a miss under heavy load especially when the supercharger kicked in. Apon visual inspection we noticed the front three wires were arching so a complate tune up was preformed. The car left all was well. Three days,100km later the mi... Trouble codes: P0300 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1994 Chevrolet G30 Chevy Van 6.5L No Start VIN: 1GCGG3516R Thanks to those who offered their input. The pump from the 96 van is the same as the 94, both DB2 models. The switch wasn't too bad. You take off intake and lines from pump, undo 3 nuts holding pump to timing cover, remove oil fill tube from front and through ... |
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| 1994 Chevrolet Caprice Classic 5.7L Programming VIN: 1G1BL82P9R I did a lot of research on this one and decided to go with Street & Performance. They seemed a lot more helpful than Howell, especially after I told Howell that I was going to use the GM harness instead of theirs. The other thing that bothered me about Howell ... |
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| 1998 Chevrolet Malibu 3.1L ABS Module VIN: 1G1ND53M9W As mentioned this car had the ABS module and computer swapped. However, it appears that there was some residual corrosion in the wiring harness to the computer. The original unit was corroded quite badly and we thought that we had cleaned the harness well. Whe... |
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| 1998 Chevrolet K1500 Cheyenne 5.0L Misfire, MIL Lamp on VIN: 2GCEK19M2W well i finally figured it out, thanks for all the replies. as i said the truck ran better if i turned off the egr with the scan tool (mastertech) or if i unplugged it, be warned that will only fool you. by doing that it backed off timing 6 degrees so i did the... Trouble codes: P0300. |
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| 2000 Chevrolet Corvette 5.7L starting VIN: 1G1YY22G9Y Well, after checking and double checking power and ground circuits, opening all connectors behind the battery, and checking all pins, we opened the BCM, box and plugged "er in. Immediately we had all circuits that didn't work before. We did have to leave t... |
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| 2003 GMC Sierra 2500 HD SLE 6.6L hot re-start problem VIN: 1GTHK291X3 I was advised by one submitter that there is a check valve in the fuel filter housing that malfunctions quite often. I did replace that part, with no change in the concern. I have since advised the owner (my boss) that the truck needs new injectors, but he has... |
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