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Prev Professional Automotive Repair Technical Discussions for November 9, 2006
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Open Help Requests for GM
Help Request Answers
1997 Buick Park Avenue 3.8L fuel and temp gauge VIN: 1G4CU52211
After a battery was installed in a customers car of mine at Advance Auto Parts the temp gauge needle and fuel gauge needle have flipped all the way around to the otherside of the stop pegs. Has anyone else seen this problem before and know of a fix? Thanks,...
1998 Buick Park Avenue 3.8L No Start VIN: 1G4CW52K5W
Hey All, Thanks in advance for your replys. This buick acts up after a cold start and after you let it sit when warmed to operating temp. What is happening is: 1. Try to start the vehicle, it acts like a honda with a bad main relay, it will try to start and l...
2006 Buick Lucerne CX 3.8L alignment. VIN: 1G4HP572X6
my brother in-law recently purchased a 06 lucerne.vehicle pulls to right.he tookitback to dealer immediately after purchase with concern.they told him it was because vehicle had been trailered on transport and that was reason-ha-ha.he put a few miles on it and...
1991 Cadillac DeVille 4.9L engine VIN: 1G6CD53B7M
After reaasembly and vehicle started all ok until it runs for a short while. Then we lose compression on #6 cylinder. We found valves staying open. Machine shop sent new lifters and valves closed again and had compression. Started engine and after running a fe...
1991 Cadillac DeVille 4.9L veh speed inc by it VIN: 1G6CD53B6M
This is a strange problem. After a short test drive, w/ veh in drive, and not touching accel pedal, foot off brake veh creeps slowly, increasing to 7 mph and then just starts going (11 - 12 = 15 mph) and up even shifting into 2nd gear. If you step on brake, ve...
1998 Cadillac Seville STS 4.6L door locks VIN: 1G6KY5497W
Hello all, I have this Cadillac that the customer has only one remote keyfob and it does not work. woulfd like to have new one to replace it. Can order from dealer, but is there any other way to program the new fob without a tech2? I have a Genisys, Mastertech...
1989 Chevrolet Astro CL 4.3L Unknown VIN: 1GNDM15Z4K
hey everybody hope someone can shed light on this. this astro came in for fr end problems and a very bad vibration/shake between 60 & 70mph. it makes the whole van vibrate violently. drive shaft was out of balance rebuilt it but still shaking. wondering if any...
1995 Chevrolet Lumina 3.1L Steering VIN: 2G1WL52M0S
Vehicle pulls to the right. We swapped front tires side to side. No difference. Rotated tires front to back. Still pulled. We had it aligned by our local alignment shop. No difference. Tie rod ends and balljoints are good. No sign of accident damage. What do w...
1997 Chevrolet K1500 5.7L abs VIN: 1GCEK14R4V
Hi Everyone I have done many GM's for false abs stops.(Clean under sensors or replace hub assemblys with sensors). This one is a little differnt. When test driving with the modis i can watch my sensors. all are equal readings, however the are all eratic. will ...
1997 Chevrolet Cavalier Z24 2.4L instrument cluster VIN: 1G1JF12T9V
see repair history
1999 Chevrolet Astro 4.3L Transfer Case VIN: 1GNEL19W9X
This vehicle came in locked in 4 wheel drive. The present owner bought it that way. Upon inspection we found a LOT of corrosion between the transfer case and the encoder motor. It was bad enough to warp the gear housing and crack the transfer case housing. We ...
2000 Chevrolet Impala 3.4L Poor Idle Quality VIN: 2G1WF52E9Y
intermitently car idle increases to 1400 to 1800 whether hot or cold problem occurs hot or cold
2002 Chevrolet S10 4.3L headlights VIN: 1GCCT19W92
This customer is complaining of the headlights being too dim and that they point too low I have adjusted them and she is complaining of the same problem. The lights appear to be bright enough to me but I have not gotten the chance to drive it at night. I was w...
2002 Chevrolet Suburban 1500 LS 5.3L MIL Lamp on VIN: 3GNFK16Z22
Customer diving vehicle and losses all dash control. No tach, Speedo and fuel gauge. Check engine light comes on. Vehicle will have transmission code. Also transmission slips when this problems occurs. Probably due to no speed sensor reading. Replace ECM. was ...
2004 GMC Canyon SLE 3.5L windshield wipers VIN: 1GTDT13614
When u start the truck the wipers come on and stay on they work on high and low but no intermittent and wont cut off .When u unplug the motor they will cut off but only work on high and soon as you cut the ignition off and back on they go back to the same prob...
1999 Oldsmobile Bravada 4.3L heater VIN: 1GHDT13W1X
This bravada will not heat. It has an automatic temp control system. The heater core flows good, but the blend door will not move. Tested the wiring at the back of the control head going to the motor and did not get any voltage change, put used head in and whe...
1999 Pontiac Bonneville SE 3.8L tcc lockup VIN: 1G2HX52K2X
I need a little help from you GM tranny guys. This Bonneville showed up with the CEL on, code p0741, "TCC stuck off", a test drive confirmed it will not go into lockup. Trans works perfect thru 4 gears, but no lockup. My scanner will command shifts but when I ...

Fixes & Summaries for GM
Fix/Summary Answers
1988 Buick Century Limited 3.8L Poor Idle Quality, Cuts out, Stall VIN: 1G4AL513OJ
Well fellow techs after many hours of testing and troubleshooting, and alot of looking for the most difficult Art from B.C hit it on the head, we had a VERY plugged CAT. Sometimes the easy things tend to get over looked and we focus on the wrong stuff. Anyway ...
1992 Buick Century Custom 3.3L Hesitation, Stall
I pulled the ECM out from under the dash(so I could get at it) With it still plugged in,I started the car and tapped on the ECM with my fingers and sure enough it changed the idle, it smoothed out and ran good, I tapped it again and it would make the car stall...
1998 Buick LeSabre Custom 3.8L blower fan VIN: 1G4HR52K52
Thanks for all the replies some hit it on the head as it was the hvac controller.Pretty pricy from dealer customer went for used one from wrecking yard all is good,thank you.
2001 Buick Park Avenue 3.8L Cuts out, Stall VIN: 1G4CW54K61
Well guys... Looks like it was a combination of the MAF and the MAP sensors. Replaced both with known good parts. Vehicle now runs like a top! Many thanks to all who replied. IATN RULES.
1965 Cadillac deville conv 392CID radio VIN: 1G1XY4567B
Thanks to all that replied with help. Once that I knew that the dash pad had to be reoved it was a piece of cake! -Dave
1994 Chevrolet Cavalier RS 2.2L brake pedal VIN: 3G1JC115RS
hello and thank you all for your input.we drove this car for a week without duplicating the condition.the husband decided to drive the car to see if he could duplicate the condition as it only happened to his has been two weeks and we havn't heard from...
1995 Chevrolet Blazer 4.3L No Start VIN: 1GNDT13W7S
thanks to all that replied i ended up looking at the fuel pump relay and found a terminal that was rusty.replaced relay with a new one and car has started ever since.mary i thank you for your headed me in the right direction.
1996 Chevrolet C1500 Suburban 5.7L volt guage/alternater VIN: 1GNFK16R6T
hello everyone, sorry it took so long. The problem was the cable with the fusible link between the battery and the alternator. I sure learned a lot on this one. And I really appreciate all the help that was given to me. The v.drop testing is critical and I hav...
1996 Chevrolet C1500 Cheyenne 5.7L master cylinder VIN: 2GCEC19R2T
I thank all who replied,steve from ohio was one whom ,mentioned possibility of having the wrong master cylinder,so checking with local GM supplier found that the application for this truck could have three different master cyls. for this truck.ordered new a/c ...
1999 Chevrolet Malibu 2.4L Poor Idle Quality, Surge, Cuts out, Stall, Misfire, MIL Lamp on, CODE PO300 VIN: IGIND52T6X
the answer is the left timing tensonar broke letting the chain jump about 2 teeth thank you all for the different test you'll suggested . when all was in i took a couple of hours to take the timing cover off and there was the problem I couldn't understand that... Trouble codes: P0300.
2000 Chevrolet Impala 3.4L electrical VIN: 2G1WF52E9Y
I would like to thank every one for there help. There was some very good ideals. First there were no theft codes, also tryed key on 10-12 min. and didn't help. Ignition switch looks good and power at starter instantly. Thanks Steve [...] looks like starter. ...
2001 Chevrolet Blazer LS 4.3L MIL Lamp on VIN: 1GNDT13WO1
Would like to Thank all that replied. This S-10 developed a Hard Cold Start Problem after I Asked for Help I changed Fuel Pump Unit and just as a Maintenence I went ahead and Changed Purge Valve over Rear Axle all seems Good Now Thank You All Again Stay Safe Trouble codes: P0440.
1989 Oldsmobile Cutlass Ciera SL 2.8L Cuts out VIN: 1G3AM51WXK
thanks for the help.thanks to tips i checked fuel injector resistance,all good.i received several tips to check exhaust.i had not done this because the car had good power right up to the point it cut out.all of the cars i have had with clogged exhaust had a no...
1997 Oldsmobile Bravada 4.3L Accessories VIN: 1GHDT13WXV
several people mentioned the ignition switch could be the problem. we removed switch and found a bad connection. we replaced switch and everything checked out good. thanks to all who responded.
1998 Oldsmobile Cutlass 3.1L starting VIN: 1G3NB52M9W
thanks to everyone that replied. It opened up ideas what to test. The fix was the BCM, it solved the no start with the anti-theft and the orginal problem were all the warning lights stayed on. I also left the new ignition switch in just to play it safe.
2001 Oldsmobile Intrigue GX 3.5L Poor Idle Quality, Hesitation, Cuts out, MIL Lamp on VIN: 1G3WH52HX1
hi techs,this one is fixed! self inflicted problem,before this happen we had replace the tank sending unit,when the tank whent back in the mechanic crossed the fuel vapor line with the return line,so the evap canister filled up with fuel and made it some time ...
1998 Saturn SW2 1.9L Excessive Emissions, Poor Idle Quality, hard to start VIN: 1G8ZK8278W
cts was cracked on the end,and the injecter connecters was full of motor oil from the jiffy lube oil change,car runs fine now thanks to all that helps.
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