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Professional Automotive Repair Technical Discussions for September 20, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1990 Buick LeSabre Limited 3.8L No Start VIN: 1G4HR54C2L Thanks in advance , This one came in on the hook on friday, no start but it sounds like valve timing is off. Tested fuel presure 42 psi good. tested injector with noide light, ok . tested for spark , all jump 1/2 inch at coil. scanned computer for codes, none ... |
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| 1997 Buick Skylark Limited 2.4L cruise control VIN: 1G4NJ52T7V Customer says that the cruise will come on all by it self. When test driveing the car the cruise and everything seems to work OK. Checked codes and only thing under body was code-Z22 (Loss of serial Data) Has anyone seen cruise come on by itself before. Thanks... |
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| 2001 Buick LeSabre Limited 3.8L Interior lite inop VIN: 1G4HR54K41 Would like some help with car, The customer says that interior light inop and found fuse blown. Install a new fuse and was fine for a day or two. I install fuse today and open and all the doors and turned all the switches on and off many times. Can't make it b... |
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| 1990 Chevrolet Lumina Euro 3.1L No Start, Poor Idle Quality, Surge, Cuts out, Stall VIN: 2G1WN14T8L Hello again group I have one here with a stalling/ cutting out problem . I towed this one to the house for a no start. I checked fuel pressure and found it to be 38 psi. I checked and found good spark. I checked injector pulse and found none. I have heard of s... |
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| 1992 Chevrolet Camaro RS 5.0L Poor Idle Quality, Hesitation, Stall, Misfire VIN: 1G1FP23EON Hey guys,car came in shop with complaint of stumble,misfire and stall when cold,once it warms up (less than 5 minutes)problem is gone.check ignition wave,found two wires arcing causing high sec.resistance,also cap coil terminal burnt causing same thing on all ... |
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| 1997 Chevrolet Malibu LS 3.1L Surge VIN: 1G1NE52M8V pcv system seems to be pulling alot of vaccum in crankcase, if you pull the oil filler cap off car will surge also if you put your finger over fresh air intake tube it also has vaccum on it, did replace pcv valve and checked for any kind of restriction in all ... |
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| 1998 Chevrolet Camaro 3.8L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 2G1FP22KXW THIS VEHICLE IDLES AND RUNS ROUGH AFTER COLD START. WILL OCCASIONALLY STALL. CUSTOMER REPLACED ALL IGN COMPONENTS AND I VERIFIED ALL PLUG WIRE ROUTING CORRECT. BASED ON IDLE CONDITION I CHECKED THE TB. IT WAS EXTREMELY DIRTY SO I CLEANED IT. VEHICLE ORIGINALLY... Trouble codes: P1361 (ic circuit), P1362 (ic circuit) |
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| 2000 Chevrolet Blazer LS 4.3L MIL Lamp on VIN: 1GNCT18W9Y customer complaint of intermittant check engine light. we dont usually get involved in these situations .unable to determine source of problem.light stays off for as long as 2 weeks or as little as a couple of hours.any help would be appreciated. Trouble codes: P0410 (secondary air injection problem) |
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| 2002 Chevrolet Trailblazer LS 4.2L Rad fan control VIN: 1GNDS13592 The radiator fan on this vehicle is computer controlled. Pulse width modulation to control the fan speed. The P1484 code sets when the fan is more than 800 rpm off the requested speed. Using the scanner we can request a certain percent of fan clutch engagement... |
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| 2002 Chevrolet Silverado 2500 HD 6.6L turn signals VIN: 1GCHK23172 When ever you mash on the brake and the headlamps are on both turn signal indicators will stay on solid. Note does not happen with daylight running lamps are on. Headlamp switch has to be in park or run position. Thanks for any help given. Jim |
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| 1997 GMC Jimmy SL 4.3L Speed o VIN: 1GKDT13W0V Here is one for you guys, This jimmy was bought from an auction and the speed o reads about half speed of actual speed. We checked with a scanner and the speed o and the VSS agree on speed but the front abs sensors read correct speed. Changed VSS and checked f... |
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| 1999 GMC Jimmy SL 4.3L Evaporator VIN: 1G2ES13WXX I am trying to find out if I can replace the evaporator core on this V-6 truck by merely removing the inboard half of the Evap. case. Shopkey shows 7.0 hrs straight labor to perform this repair and instructs to remove the fender to gain access to the entire ho... |
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| 1990 Pontiac Firebird 3.1L starts and stalls VIN: 1G2FS23T7L This car will start but stall right away. we went though and recked the customers work. all ok If you dont let the ign. switch return all the way to thew run position after starting it will idle (not real great ) Just for fun I pit another distriibutor in it a... |
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| 1997 Pontiac Grand Am SE 2.4L Engine VIN: 1G2NE52T0V Hi group, this grand am will intermitently not start. It will crank over but not catch. We replaced the 2 sensors when it had the codes in the computer with no change. It could be good for a week or month and then not start. Looking for a little direction than... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Buick Park Avenue 3.8L abs VIN: 1G4CW54K52 We isolated the ABS from the HYD's, thus allowed us to determine it was ABS events causing the pulsation, which was described as a shutter. The advise we recieved from members allowed us to determine the cause of the problem. Thanks Please close the file. |
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| 1988 Cadillac Fleetwood 4.5L multiple electic devices VIN: 1G6CB5154J Fixed! None of the replies lead to the fix though. I did search for the CPS that at least two of the replies mentioned and I believe this vehicle does not have one. Anyway, I had two problems that combined to make this difficult to find: 1. Bad wiring diagra... |
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| 1996 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KF529TU I had 3 replies,stating to replace the crank sensors even though the both tested fine with a labscope,apparently the have a problem with they were made,customer has driven now for 3 weeks no codes reset,thanks again, |
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| 1993 Chevrolet Lumina APV 3.1L Cuts out VIN: 1GBDU06DIR I would like to thank everyone that took their time & knowlage to help us with the problem on the Lumina. It turned out to be a small piece of debris in the distributor mounting hole. When the distributor was put into the mounting hole, it was being held up ab... |
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| 1993 Chevrolet K1500 Cheyenne 4.3L Poor Idle Quality, Stall, MIL Lamp on VIN: 1GCEK14Z7P thanks for all the help what we found was a fuel pump that had good press. 10# good volume and good scope wave pattern but would drop out after 3 to 5 seconds of run time press. would stay good but a low amp probe found that amps would go out the roof thanks a... |
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| 1997 Chevrolet Lumina 3.1L engine VIN: 2G1WL52M2V Lot's of good sugestions on this one. It was a rist pin in the end. Customer decided on a used engine. Thanks again for the great effort. I know it's asking a lot to diagnose noises over the net!!! |
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| 1998 Chevrolet K3500 Cheyenne 7.4L climate control VIN: 1GCHK39J7W Thanks to all that sent copys of the wiring schematics. The technician traced the grounded power line . everything is good to go ... thanks again |
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| 1997 GMC Yukon SLE 5.7L PRNDL light VIN: 1GKEK13RXV Thanks for the help on this. I received many good replies. First of all, code P1870 was not related to the PRNDL light. The code is Transmission Component Slipping. One person sent the GM Bulletin relating to this and is posted in the replies. The customer was... |
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| 1999 GMC Yukon SLE 5.7L engine VIN: 1GKEK13P3X Well, after we removed the engine we found cyl.'s 5 and 7 had spun. The customer has a lawyer and plans to sue the Lube chain. I still feel that they over filled it by several quarts initially. |
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| 2002 GMC Yukon Denali 6.0L Stall VIN: 1GKFK66U52 hello all I think this one is fixed. I found a poorly installed remote start unit hooked to this truck. I removed it and repaired the wires and I think its fixed thanks for the help |
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