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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 12, 2012
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Open Help Requests for GM
Help Request Answers
2008 Buick Lucerne CX 3.8L Fuel pump relay VIN: 1G4HP57258
I need to know if someone ran in to this and how they fix it. I have a melted fuse box with the fuel pump relay. The wiring diagram is wrong, it is wired up with pin 30 hot all the time not the fuse and the fuse is after the relay. I have pulled the fuse box a...
1999 Cadillac Seville STS 4.6L Ipm VIN: 1G6KY5498X
Hey guys, got a good one here. 99 Caddy Seville---AC will not engage. If you start the car up, the AC OFF indicator on the IPM is always on. This was the original complaint when the car came in. With my Tech 2, I pulled a B1340 (Driver's air mix actuator feedb...
1999 Chevrolet S10 LS 2.2L Charging VIN: 1GCCS1942X
i have this s-10 charging system issue. it seems weird how it comes about when it decides to act up. here goes:start the truck cold and drive anywhere,starts normal and charges fine.shut off let it sit for a bit.restart and it cranks long and starts like its l...
2000 Chevrolet Lumina 3.1L air flow VIN: 2G1WL52JXY
Vehicle came in for vent operation shifting when under acceleration, thought vacuum leak or bad check valve no problem, boy was i wrong. Pulled a vacuum on check valve tested ok. Tested resevoir and it held vacuum. Pulled line off check valve to inside of car ...
2003 Chevrolet Tracker ZR2 2.5L starter VIN: 2CNBJ73483
I have this car that when I turn the key all i get is a click. I have replaced the starter twice and i have changed the battery twice. What could make this happen. It acts like a bad starter. All the accesories work fine just no start. But If i put a battery c...
2004 GMC Envoy XUV SLT 4.2L Rear Gate Glass VIN: 1GKET12S14
I have this Envoy XUV that the rear gate glass will not go up with the switches. I have the "check manual- tailgat" message displayed on the dic. Here is what I know: All latches show closed on the scanner. The regulator is good, I can manually make it go up ...
1995 Pontiac Grand Am SE 2.3L Timing Chain VIN: 1G2NE15D8S
this is my personal car and I am asking for advice before I tear into the engine. engine is very noisy when hot at idle. Raise rpm to 1500 and noise goes away. noise is definitely coming from timing chain housing. thought oil pressure was low, put a gauge on i...
1999 Pontiac Grand Am GT 3.4L cannot fill tank VIN: 1G2NW12E9X
This vehicle will randomly not allow the driver to put in fuel. We have seen the vehicle once when it was actually acting up and disconnecting the vent line from the tank to the canister alleviated the problem. However, we cannot find a restriction, the fill n... Trouble codes: P0440 (Evaporative Emmisions)

Fixes & Summaries for GM
Fix/Summary Answers
2003 Cadillac CTS 3.2L transmission cooler line VIN: 1G6DM57N83
Found an OEM radiator from Factory Motor Parts for a reasonable price. The Connections seemed a bit tighter. I would have rather gone with a external cooler but the customer didnt feel that modifying the vehicle was a good idea. So I suppose time will tell ...
1985 Chevrolet Camaro Sport 2.8L Cooling Fan VIN: 1G1FP87S7F
Had to throw in the towel & go with adding an auxiliary cooling fan relay/switch unit from Carquest, (works great), although the original issue was never solved. Tried one used & two reman ECUs, no changes. No one could positively say if a corrupted PROM (no E...
2004 Chevrolet Silverado 1500 4.8L Windows , Locks, Mirror VIN: 2GCEC19VX4
Thanks to all who helped. As it turned out the Maxi fuse was blown and the PDM fuse was missing. The PDM fuse is tucked away in the center of the lower fuse box and I was checking for blown fuses not missing ones because the customer said he doesn't work on hi...
2005 Chevrolet Impala LS 3.8L Starting VIN: 2G1WH52K25
Thanks for the help it was the theft lock cylinder replaced it and no problem yet.
1995 Oldsmobile Silhouette 3.8L Misfire VIN: 1GHDU06L8S
Thanks for all the help guys... i read all very carefully and did many things that were suggested. I still have no fix and don't know where to go next... I suggested the customer drive it with a MAF unplugged because it drives great with no misfires that way. ...
2004 Saturn Vue 3.5L compressor VIN: 5GZCZ53444
Thanks for so many replies, Heres my story..We explained to the owner that he either needed a compressor job or atleast a tx valve we explained to get a waranty on compressor from everco we would have to replace tx and drier so we offered to start with replaci...
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