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Prev Professional Automotive Repair Technical Discussions for May 25, 2005
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Open Help Requests for GM
Help Request Answers
1989 Buick Riviera Luxury 3.8L Cuts out VIN: 1G4EZ11CXK
Greetings to all This buick will cut out like a light switch but will start right back up like nothing happened.It has happened to me several times but I cant get agood test on any thing because it fires right up.Many parts have been replaced by other shops.I ... Trouble codes: B0334, B0336
1995 Chevrolet Lumina APV 3.8L Convertor VIN: 1GNDU06L2S
This is a fairly high mileage van with a lean surge or shudder at cruise speed. Rather than replacing injectors, I want to defeat the lock-up convertor without turning on the SES light. This a 4T60E Tranny. Cut the tan ground wire today too the TCC solenoid & ...
1995 Chevrolet S10 4.3L clutch VIN: IGCDT19Z2S
I have a 4x4 s-10 here that binds going into first or second and also grinds sometimes going into reverse. It almost like the clutch is releasing. I check the master and slave for leakage and none was found. Fluid level was also good. I also removed the inspec...
1996 Chevrolet C1500 5.0L interchange VIN: 1GCEC14MTZ
I am working on a 1996 1/2T 2wd Chevy truck with a 305/4l60e The trans is slipping and I have access to a good 1998 model 4l60e that was behind a 350. The '96 is the regular 'ol SBC type trans with the sheet metal dust cover, and the '98 has a bolt on full cir...
1996 Chevrolet Camaro 3.8L Surge, Cuts out, Slight buck (hitch) VIN: 2G1FP22K4T
Hello fellows. Does anyone know what trailer hitching is? That is my best description of symptoms on this car. It seems to do this worse under 40 MPH, but does not matter what speed the car is in. Engine does not have to be under load. In fact it reacts worse ...
2000 Chevrolet Silverado 1500 4.8L Cooling Systems VIN: 2GCEK19T9Y
Hi all, this customer called and said that he had left the drain plug out of the engine overnight and the next morning, antifreeze was dripping out of the oilpan drain hole. Has anyone seen cases of coolant in the oil in these newer style engines, and what has...
2002 Chevrolet Express 1500 5.7L Cuts out VIN: 1GBFG15R4Y
Hello ,thanks in advance.The van has no power while driving.I have made 1 road test that van dove great.If i give any gas to accel the injector pulse drops to 0.vehicle speed is correct.mass air seems ok.I have done complete tune up,cleaned maf and injectors.I... Trouble codes: P0171, P0174, P0300, P1870
2003 Chevrolet Express 2500 5.3L abs VIN: 1GCFG29T83
i have a co550 code in the system i cant run any test till the code is cleared and it wont clear i also have the three speed sensors read 3mph when sitting still what it up with this is the ebcm gone.
1992 GMC Safari 4.3L Hesitation, Stall VIN: 1GKEL19WON
Eng started and died, would not idle. Eng sags when gas pedal pressed down normally. If you press hard and repeatedly the eng will rev up. Can drive the veh. this way. Once you are above 40 MPH veh. seems to run OK. Eng will die when stopping for a light. TPS,...
1994 GMC K1500 Sierra SL 5.7L Poor Idle Quality, Hesitation, Surge
this truck was sublet to us from another shop. there are no codes stored. on a road test the truck will start to slow down like its running out of fuel and then system goes into open loop and truck will run fine,also it will go into open loop when cruising at ...
2000 Oldsmobile Intrigue GL 3.5L MIL Lamp on
Vehicle returned with Check engine light on. Same code p0410B Air System. Energize electric air pump with scanner and works propeerly. Vehicle returning next week to see if we can find the problem if anyone has had seen this before please advise. Installed the... Trouble codes: P410B (air system)
1995 Pontiac Bonneville SE 3.8L engine VIN: 1G2HX52K2S
Hi, I have an engine noise just like one posted 8/24/00 and he got 0 responses. Hopefully time has provided some answers. Owner complaining of sluggish performance with knock sensor picking up a knock causing the timing to be retarded.The engine has a noise in...

Fixes & Summaries for GM
Fix/Summary Answers
1990 Buick Riviera Luxury 3.8L compressor VIN: 1G4EZ13C91
Wow!!! Almost everyone of you said to disconnect the battery cable end for deleting the memmory. And I did just that and everything works well after reconnecting the battery and start the car. Thankyou very much to each and everyone of you. This is one of the ...
1998 Cadillac DeVille 4.6L starter/flywheel VIN: 1G6KD54Y1W
wow! 20 replies and almost all of them hit the nail on the head.one reply pointed out that it was time for me to become a sponsor as all i had to do was look at previous fix archives and see that the starter is a common issue with this symptom. starter bendix ...
1988 Chevrolet Allegro RV 454CID cruise VIN: 1GBKP37WXJ
Thanks to all, I ended up installing a rostra system on the RV. Replacement parts are hard to come by for the old dana systems. Thanks again for the help.
1990 Chevrolet K1500 Cheyenne 5.0L clutch VIN: 2GTEK192KL
well this has been a humbling experience. thanks for the help offered from everyone. the fix was to remove the slave cylinder and position it at an upward angle to complete the bleeding. the humbling part is that those directions are in the factory svc man...
1992 Chevrolet Blazer Cheyenne 5.7L Long crank time VIN: 1GNEK18K1N
Okay fellow techs I have got this blazer going I replaced the prom with updated unit and tossed the hypertech also cleaned ground located at thermostat the new prom took care of the hard start the truck also had a small miss that customer said was present for ...
1997 Chevrolet Tahoe LS 5.7L Misfire, MIL Lamp on VIN: 1GNEK13R8V
well as most of thereplies said,we had a bad poppet.my only problem was we couldn't tell without removing the plenum.we did a pressure drop,we ohmed all the injectors and it didn't show any difference. what we did dowas pull the poppets out 1 at a time and act... Trouble codes: P0300.
1999 Chevrolet Malibu 3.1L Cooling system VIN: 1G1ND52M3X
We removed the intake again in order to satisfy ourselves & the customer. There was more pitting around one water jacket than I liked to see. I went ahead & redid the job with a new intake. I guess we willhave to see. We put plain water in the engine and are r...
2000 Chevrolet Silverado 1500 5.3L ablilty to stop VIN: 1GCEK19T6Y
I recd.many replies without much help.The replies that told me to check for rust must not have read that the hubs have been recently replaced,so rust could not have been a factor.I am going to try checking the WSS output on each front wheel for peak to peak vo...
2000 Chevrolet S10 2.2L MIL Lamp on VIN: 1GCC51954Y
I checked for leaking head gasket or cracked head as many replies suggested ,,checked out ok . NO silicone contamination found . Replaced O2 sensor agian ,,this time Bosch unit . Has been working fine ever since . Not sure why ? But customer is happy , I 'm ha...
2001 Chevrolet Impala 3.4L temp gauge,elec cooling fans VIN: 1S3BJ6331R
Hello, Thanks for all of the input on this problem of mine. The problem ended up being the thermostat. You would never think that a thermostat would cause this kind of a problem. Thanks for all the help Mike
2001 Chevrolet Express 3500 5.7L Misfire VIN: 1GAHG39R11
Thank you all for the insight. Like I said I have not seen this on any of the vehicles I have worked on. We see a lot of these 'R' motors. And in Michigan, you would think it would be more common. I did look for an updated cap...no such luck. I use the D329A... Trouble codes: P0300.
2002 Chevrolet Monte Carlo SS 3.8L abs module VIN: 2G1WX15K02
everyone was right i removed loom and about 6 inches from conector someone used buttsplices on the wires and they were corroded bad, i soldered wires and used heatshrink on them and checked the other side and it had same thing done to it so it got solder and h...
1999 GMC Savana 1500 5.7L passlock VIN: 1GDFG15R2X
Thanks for your input. The van would not start this morning and I replaced the vtd module and all is good so far. Thank you Aran from Utah for the bounce, sometime you just need someone to agree with you analysis. FYI the vtd module is located under dash above...
2001 GMC Sierra 1500 SL 4.8L No Start VIN: 2GTEC19V11
Apparently lightning did strike the vehicle. I put in a new PCM & BCM and got the software to reprogram & did the re-programming and it did start. Now the ABS light is on & I'm sure the ABS module is now bad. The only problem is that I have a code P1336 that I...
1993 Hummer H1 6.2L steering gear VIN: 137XE8337P
i got to looking on ther internet at hummer related sights.(typed in hummer parts) and found several postings from h1 owners about power steering problems.pumps.steering shaft joints and boxes seem to be normal problems with this vechicle,noting that some owne...
1993 Pontiac Grand Am SE 2.3L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire VIN: 1G2NE1435P
The problem with this vehicle was the ignition spark router. The qdm b driver apparently always has a fault. The fault in the driver had nothing to do with the drivability concerns. With the exception of Alex from British Columbia, thanks for all of your help.
1993 Pontiac Grand Am SE 2.3L No Start, Misfire VIN: 1G2NE1A34P
Thanks to all! This was a classic not triple checking EVERYTHING! Coil cover & coils were checked even though cover was replaced 8 months ago (DELCO). Also amount of fuel In cylinders and lack of RPM PID sent me south. All grounds were checked but cleaned anyw...
2002 Saturn L200 2.2L Mechanical VIN: 1G8JU54F82
after reviewing post replies i went with my gut feeling and replaced expansion valve and drier. now compressor stays engaged with consistant low 40`s coming from vents. i did not see any debris in system when apart. i wish there was more info for root cause of...
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