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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 24, 2005
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Open Help Requests for GM
Help Request Answers
2003 Buick Century 3.1L MIL Lamp on
This car came in with a MIL light on. P0171 lean code .We checked fuel pressure ok,replaced fuel filter and front O2 sensor and light came on again for the people.We were thinking fuel regulator or vacuum leak but dealer said they don't have problems so we dec... Trouble codes: P0171 (Lean bank)
1998 Cadillac Catera 3.0L MIL Lamp on, Speedo & PS VIN: WO6VR52R8W
When problem occurs, there is a loss of speedometer, power steering.Traction control & abs lights illuminate at same time. EBTCM seems to test OK. I have read several posts that led us to look in that direction. We are getting nothing from testing from the ECM... Trouble codes: 1844 (1740 -), 1740 (501 -), 501
1996 Geo Tracker 1.6L MIL Lamp on VIN: 2CNBJ1366T
Running trouble shooting tree on Mitchells and alldata does not show up any problems. All tests pass. The Egr solenoid does nor energize from the computer control. Wiring to computer checks out ok. Can trigger solenoid from computer cable. The Computer is not ... Trouble codes: P0400 (EGR Flow Malfunction)
2002 Oldsmobile Aurora 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G3GS64C22
Hey gang, This Aurora came in with a MIL on and a misfire. The Tech 2 isolated the miss to #7 cyl. So I dived in and pulled the coil pack, plug and boots figuring I would find carbon tracking. No such luck, very clean. While I had it out I did a quick Ohm chec... Trouble codes: P0300 (Random missfire)

Fixes & Summaries for GM
Fix/Summary Answers
2001 Cadillac DeVille DTS 4.6L Cuts out, Stall, MIL Lamp on VIN: 1G6KF54951
Thanks to everyone that relpied to this post. By the number of replies saying to replace both A & B sensors it must be a common problem. I indeed took your advice and replaced both sensors w/ updated part #'s from AC Delco. I could not find trouble with the en... Trouble codes: P0385.
1993 Chevrolet S10 4.3L Stall VIN: 1GCDT1928P
thanks for all the help replaced dist could not see any cracks on magnet, ran great customer happy
1994 Chevrolet S10 Blazer 4.3L Fuel pump VIN: 1GNTD13W6R
Thanks to all who replied!!! The majority said it was a defective oil pressure sending unit. They were correct. I noted this and it may be of interest to the group. I always wondered why the fuel pump on most GM cars seems to run for a second or two after you ...
1998 GMC Yukon SLE 5.7L Hesitation, Cuts out, Misfire, bucks and backfires VIN: 1GKEK13R6W
The majority of you were correct. We deadheaded the fuel pump and there was not enough pressure. We replaced the fuel pump assembly and all is well. Thanks alot.
1989 Oldsmobile Delta 88 Royale 3.8L Noise VIN: 1G3HN54C3K
We fixed this vehicle by replacing the balance shaft and both bearings which is right above the camshaft.Thanks for all the suggestions and all the help.
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