 Prev |
Professional Automotive Repair Technical Discussions for April 28, 2004 International Automotive Technicians' Network (iATN) - Members Only |
Next  |
| (Also Available: All, Asian, Chrysler, European, Ford, GM.) | ||
| Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. | ||
Open Help Requests for GM
| Help Request | Answers | |
| 1996 Buick Century Custom 3.1L Hesitation VIN: 1G4AG55M0T customer states when engine is warm, the engine bogs severely under acceleration. customer had another shop previously attempt to repair vehicle. the other shop replaced the catalytic converter, fuel pump, fuel filter #1 & #6 fuel injector. needless to say, th... |
View | |
| 1992 Chevrolet Cavalier RS 2.2L Poor Idle Quality, Hesitation, Stall VIN: 1G1JC144XN Hi to all. This rig is driving me nuts. I have checked the spark plug gap, was wrong. It has no codes, but runs poorly sometimes and dies sometimes. I have checked the map and tps sensors, both test fine. Was able at one point to improve the engine idle by hol... |
View | |
| 1995 Chevrolet Lumina APV 3.8L No Start, Stall VIN: 1GNDUO6L6S car stalls after hot at idle or cruising at 55mph sometimes restarts sometime dosnt.Does not quit long enough to check for spark.Has been going on for six months starting to get worse. |
View | |
| 2001 Chevrolet Tahoe 5.3L power steering VIN: 1GNEK13T31 2001 chevy tahoe steering pump shaft was broken. changed pump with gm rebuilt. with engine running power steering is to easy for 10 to 15 seconds, then no power steering at all. shut of engine and let set for 10 min. and restart, same thing happends. changed p... |
View | |
| 2002 Chevrolet Impala 3.8L body VIN: 2GIWF52EX3 As you drive this car a loud noise comes from the right rear. The car has been at the local chevy dealer 3 times and is now in my hands. This noise sounds very much like a ocilating soliniod that is "buzzing" loudly as if it were mounted to the body with no in... |
View | |
| 1987 GMC S15 Jimmy Gypsy 2.8L Excessive Emissions, Poor Idle Quality, Stall, Poor Fuel Economy VIN: 1GKCT18RXH i need bigtime help on this one.cust bought this jimmy in for rough idle no power very sluggish.thought this was going to be a simple tune up NOT.this is what i did,replaced dist cap,rotor,wires & plugs no change whatsoever.looked at injectors while running na... |
View | |
| 1991 GMC G2500 Rally 5.7L Poor Idle Quality, Stall VIN: 2GKEG25K7M Goodmorning. This 1991 g van will not stay running on cold circuit. It acts like it is not recieving signal to iac witch leads me to the ecm.Already tried temp sensor,and iac,checked wiring at ecm and sensors they look ok. Just wondering if their is any other... |
View | |
| 2000 GMC topkick 7.4L No Start VIN: 1GDJ6HIB6Y The one interesting thing to note is the fact that the spark will fall out and the ignition will spark once as the key is shut off. This is like the old ingnition module problems we have seen in years past. The Crank and Cam sensors have good Lab Scope pattern... |
View | |
| 1990 Oldsmobile 98 Regency Touring 3.8L Compressor Oil VIN: 1G3CV54C4L Fellow Techs, could someone tell me why GM has made it mandatory to use PAG oil vs. using ESTER oil? GM has gone as far to say that the compressors warranty can be voided if ESTER is used. I have heard that there is also a dye in PAG that identifies the oil. M... |
View | |
| 1996 Oldsmobile 88 Royale 3.8L No Start VIN: 1G3HN52KOT Hi I have an intermintent no start. This is the second time the car has been in our shop. The engine will crank fine, but not start. I could not duplicate the problem the first time. I replaced the fuel pump the first time, due to a bad lab scope waveform. The... Trouble codes: P0300 (engine misfire detected) |
View | |
| 1996 Pontiac Grand Am SE 2.4L passlock VIN: 1G2NE12T1T Cold stall from passlock system after repairs. |
View | |
| 2000 Pontiac Grand Am GT 3.4L wheel speed sensor VIN: 1G2NW12EXY Good morning, Have this Grand Am that is setting ABS code 1232 for the LF wheel speed sensor siganl. We put in a new wheel bearing about 2 weeks ago for this same problem due to a very poor pattern on the scope( very fuzzy). The Tech 2 was also showing the sig... |
View |
Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1993 Buick LeSabre Custom 3.8L Electric window RF VIN: 1G4HP533PH May I thank those Technicians that took the time to reply to my help request. Thanks to Glen for the wiring diagrams I diagnosed this fix to be the driver door switch. Every reply is greatly appreciated. From the replies most all thought the wires in the door ... |
13 | |
| 1987 Chevrolet Celebrity 2.5L Excessive Emissions, Poor Idle Quality, Hesitation, Surge VIN: 1G1AW51R8H Hello group, I left this one open a while to be sure it was fixed. I checked compression, EGR, cam/crank timing (as well as possible through oil fill cap) and all were good. Finally I removed the module/coil pack (well hidden) and found a melted spot on one ... Trouble codes: 13 (O2 sensor ckt open/short/bad), 42 (EST problem). |
12 | |
| 1990 Chevrolet Cavalier 3.1L No Start, Cuts out VIN: 1C1JF11T0L Most of all that have contacted me led me in the right direction by finding a shorted injector #5 that caused this no start when hot condition. I started by measuring the total circuit resistance when hot at the main injector harness compared to cold and found... |
11 | |
| 1998 Chevrolet Express 3500 5.7L Engine VIN: 1GBJG31R1W Hello fellow TECHS. This one is very interesting.As I said in my up date I had to replace my fuel guage.This engine will only start at 55-63 psi.,as many TECHS agreed.So with fuel pressure ok I went head on to the security system.I later found that there was a... |
17 | |
| 2002 Chevrolet S10 2.2L Hesitation VIN: 1GCC51431K first i found an update for the ecm. that was for misfire detection. after that i was able to narrow it down to cylinder number three. so i double checked all of my work, i had replace plugs, wires, coils and modules, and all injectors to no avail. then i did ... |
16 | |
| 1996 Pontiac Firebird 3.8L No Start VIN: 2G2FS22K2T thanks to all people who replied. Its amazing how helpfull IATN is. we had a dealer flash the computer and it started and ran great. If the dealers in columbus was more helpful we would of had the car fixed alot quicker. thank you all. rick |
14 |
