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Prev Professional Automotive Repair Technical Discussions for May 25, 2008
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1992 Chevrolet Corvette 5.7L No Start VIN: 1G1YY23P7N
Car came for no start .When car is cold and has not been started for about an hour it starts okay.When you restart when hot or warm it doesnt start.When this happens there is no injector pulse.Owner replaced disributor assm, thinking that was it because he tho...
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2005 Chevrolet Express 1500 LS 5.3L MIL Lamp on, Extended Cranking VIN: 1GCFG15TX5
prior to replacement of pcm on tuesday when i get back, anyone else seen this? im curious for my own knowledge can the pcm be repaired in house? have seen chafed wire before and bad cmp, but this is a first for low voltage right at the pcm. thanks in advance! ... Trouble codes: P0342 (cmp low)
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2002 Oldsmobile Alero GL 3.4L Fuel Pump VIN: 1G3NLIZEXC
Hello All I have this Alero that won"t Start. I unplug the fuel pump harness where it comes through the floor near the tank. My powerprobe shows good ground and 12.6 V for the duration of the relay. I can power up the harness and run the pump. Pump runs fine....
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Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick LeSabre Custom 3.8L Surge, Cuts out VIN: 1G4HP52K8V
Hello and thanks for all post's, Man there was a lot of them. Most of you talked about the TPS sensor, so that's where we started. This customer is a good one to work with and was willing to try this out. So far we have not heard from him, but I am saving all ...
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1987 Chevrolet Corvette 5.7L engine cradle VIN: 1G1YY2182H
I know this was a somewhat unusual request and I appreciate the responses I received. After sleeping on it and considering the inherent risk involved in any buy-and-sell I opted not to involve myself. The information provided help me to make a responsible ...
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2003 Chevrolet Impala 3.4L Misfire VIN: 2G1WF52EX3
Thanks to everyone who replied. The long term fuel trim continues to be negative but the momentary misfire caught by the scan tool was gone after we replaced the upstream oxygen sensor. We scanned two other W body GM cars, which were running fine, they both h...
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2005 Saturn Vue 2.2L MIL Lamp on, LOSS OF POWER VIN: 5GZCZ23D95
Thanks for the relies it was evenly divided between wiring problem at the pcm -- throttle motor,or the map sensor. I took it home for three days with my scanner and could`nt duplicate it. I checked the PCM and throttle motor wiring everything looked ok. Map se... Trouble codes: 0068 (map/maf throttle correlation).
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