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Professional Automotive Repair Technical Discussions for May 25, 2009 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1996 Chevrolet Cavalier 2.2L No pcm/theftlight on /no main relay VIN: 3G1JC5249T I,ve checked pcm for water intrussion, it appears ok circuit boards seem ok .I found a splice in the front harness under battery that was green re:grounds and the pink wires[splice again] ,same dido. Both repaired,incuding all three grounds under battery G110.... |
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| 2000 Chevrolet Astro 4.3L cooling system VIN: 1GCDM19W1Y Hi Techs - I'm working on a 2000 Astro rwd van with the 4.3 engine. It has a cooling leak that is visible during 10psi pressure test - drips off of the bottom of the PS pump bracket at the drivers front of the engine, down onto frame crossmember. Definitely co... |
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| 2000 Chevrolet Venture 3.4L Fuel gauge VIN: 1GNDX03E9Y Purchased new sending unit, as old one was contacts were worn. Gauge goes to full, then after about 1 minute drops to empty. Tested for continuity, good all the way between ECM and sender connector. Resistance changes with movement of the sweep. Snap-On scanne... |
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| 2000 Oldsmobile Alero GLS 3.4L Surge, Cuts out, Misfire VIN: 1G3NF52E9Y I found a couple of posts like this, but there was never any fix submitted. Anyway, I have been driving and testing this car for three days. Symptoms: runs great in the shop, runs great driving under a load and at idle, but if you try to maintain a speed with ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1998 Cadillac Seville SLS 4.6L rear strut dampning VIN: 1G6KS54Y6W Well I went ahead and replaced the dampning relay and had no other poblems or trouble codes. I know from experience that this just means I might have stumbled onto a weak relay or connection. But to save diagnostice time charges we went with the ten dollar dam... |
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| 1994 Chevrolet Camaro 5.7L Misfire VIN: 1GCF134C76 Thanks everyone it ended up being 1 broken valve spring.This valve spring only had about a half a coil broken yet it caused all this problem. thanks again |
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| 1999 Chevrolet Blazer 4.3L blowermotor VIN: 1GNDT13WXX sorry it took so long .there is no voltage change at the signal wire (purple/white)come in to the module when the fan switch is on. replace head control . problem fixed thanks to LONG in texas and all tech out there took time to help me thankyou again |
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| 2001 GMC Yukon SLE 5.3L abs module VIN: 1GKEC13T81 thanx to all that read or replied, after so much testing and playng arround with 3 different modules and 3 different motors, i called up gm and got their module for 750 bucks, problem fixed the culprit was 2 bad reman ebcm's and 1 bad ebcm from yunk yard and ... |
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| 2000 Oldsmobile Alero GL 3.4L Poor Idle Quality VIN: 1G3NL12E4Y Throttle Angle=1% at idle not 0% Throttle Position Sensor solved problem I viewed the ECT, TPS, and IAT sensor signals with a scope but noticed no fluctuation when the problem occurred. One item that did catch my eye was that the scan tool showed 1% th... Trouble codes: P0122. |
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