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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 14, 2007
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
1991 Buick Park Avenue 3.8L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1G4CW53LXM
Hello everyone,I have this Park Ave here and its doing wierd things.It came in as a no start and after leaving it overnight it fired right up.Figured it was the module because it would buck and surge when hot and stall and not startand start and run fine when ... Trouble codes: 41 (cam sensor)
2000 Buick Regal GS 3.8L Cuts out, Stall, MIL Lamp on VIN: 2G4WF5515Y
Car cuts out or dies intermittenly cough, spits, sputter, black smoke have replaced the mass air flow sensor and the throttle position sensore due to the codes it is setting but this has not help the problem and if raise the rpms to 2000 the car will die out c...
1979 Cadillac Seville 5.7L Misfire VIN: 6S69B99472
Hello IATN members. First time asking for help. I am helping a fellow tech to get some information we are not able to find locally. We know this caddy needs injectors and an ECU. We can't find any info for the resistance for the injectors. 2 of them read appro...
2003 Chevrolet Silverado 3500 6.6L Hesitation, Engine Noise
This Duramax Came in with a "smoking" and "knocking" complaint. Scan tested and found P1093 "Fuel Rail Sensor" code. Engine also has a very noticeable knocking noise in the engine, not a fuel knock but a mechanical knock at idle and while driving, if i remove ... Trouble codes: P1093 (Fuel Rail Pressure)
1998 GMC K2500 Sierra SL 5.7L Poor Fuel Economy VIN: NONE VINR
shop says knock sensor is at fault after 2 weeks of testing . no codes, only drivability isssue is noisy(lazy) lifter since engine rebuild . has anyone else ever seen a knock sensor pass all tests and yet cause this problem shop says lifter is not causing this...
1991 Pontiac Sunbird LE 3.1L Poor Idle Quality VIN: 1G2JB51T2M
Hi everyone.I have my brother in laws Sunbird for a few days to see if I can find the problem.It started a few months ago with a rather high but steady idle speed (1000-1200) when hot.Then it started getting higher each time it is started.Today it was idling a...

Fixes & Summaries for GM
Fix/Summary Answers
2001 Cadillac Catera 3.0L MIL Lamp on VIN: W06VR54R41
This problem was track down to the ECM. I did the 30 sec thing see "view reply". I discharge the ecm by dicconnecting the battery overnight with lights on. I check the trottle plate for binding - ok.I had a caddi tech came over with his tech 2 and he tried to ... Trouble codes: P1526 (Minimum Trottle position not learned).
1991 Chevrolet C1500 Cheyenne 4.3L Hesitation VIN: 2GCEC19Z3M
Hello. Sorry for the delay to post a fix. But This vehicle is two hours away from me and just had to wait a little longer. I found a throttle body injector gasket leak and going into the throttle plates when acceleration. Producing a rich mixture. Replaced tha...
1994 Chevrolet Caprice Classic 5.7L ecm VIN: 1G1BL52POR
Thanks for the replies from douglas [...]. All the relies were appreiciated and very helpful. Douglas said that ...
1996 Chevrolet C1500 Cheyenne 5.7L Surge VIN: 1GCEC19R3T
replaced the stanard cap with a delphi ignition cap. wire conections were not a sure grip. tc was working properly. did not have a big problem with egr, cleaned it like new again. thanks for your imput it was helpfull.
2005 Saturn Ion-2 2.2L power steering VIN: 1G8AJ52F55
Well guys heres's what happened, for it's fixed I replaced the colum.The reason I had those other problems I updated about can only be attributed to over reacting.I'm not sure wht I couldnt get the scan tool to read, the Snap-On was not can updayed, but the Ge...
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