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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 14, 2008
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Open Help Requests for GM
Help Request Answers
1998 GMC K3500 Sierra SL 7.4L abs brakes VIN: 1GTHK34J6W
customer brought truck into shop with brake pedal complaint. pedal was "soft" and felt like truck wasn't going to stop sometimes. also could feel and hear "buzz" when depressing pedal at slow speeds. seems to be worse at slow speeds and easing into pedal. peda...
1995 Pontiac Firebird 3.8L Turn Signals VIN: 2G2FS22K3S
Hey folks I kind of have a wierd one here. I've seen this once before years ago. This firebird has a problem with the turn signals. The 4-way flashers work. All lights burn and flash as they should. The left turn signal works correctly, all light on and flash ...
2004 Saturn Vue 3.5L Misfire, MIL Lamp on VIN: 5GZCZ53484
this 2004 vue has a misfire code p0300 and p0301-306 at idle fuel psi is good, did all the usual tests, swaping plugs coils, mass air flow coolant temp etc, cylindres 2,4,5 miss continously while the others only once in awhile, off idle engine runs perfect, i ...

Fixes & Summaries for GM
Fix/Summary Answers
1996 Chevrolet Lumina APV 3.4L spark plug removal VIN: 1GNDU06E7T
When I got my first reply I removed the alternator (and that was a task in itself on this APV mini van) I jumped right in and was able to get to the first plug but was not able to get to any of the rest. A/C and heater hoses along with wiring harnesses were a...
2000 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEK19TXY
first of all i want to thank everyone who replied. the response was incredibly fast and useful. although the costomer declined repair at this time i was able to charge him for my diagnostic time. to all of you who mentioned the use of a pyrometer to check the ... Trouble codes: P0137, P0157.
2001 GMC Yukon XL 1500 SLT 5.3L No rev above 2500 VIN: 1GKFK16T11
Thanks to all of you that responded. Finally was able to get this vehicle out the door. It ended up being a defective fuel pump. I guess new part doesn't always mean good part. The flexible line in the module assembly was too long and when the unit was com...
2002 GMC Envoy SLE 4.2L battery VIN: 1GKTD13S82
Thank you to all, especially Tim, Doug, Matt, Brion, Robert, and Richard. Unfortunately, last evening I was stuck with Pep Boys,no access to cable/terminal suppliers or NAPA. Several of you recommended very good solutions but they all involved hard- ware that ...
2000 Pontiac Montana 3.4L Surge VIN: 1GMDX03E2Y
Found that GM had a special bulletin for this problem with this trans, but it did not include the Montana. To verify the problem a Tech 2 is used to take a snapshot and download to a techline terminal and graph the TCC duty cycle. If a sawtooth pattern is pres...
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