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Prev Professional Automotive Repair Technical Discussions for November 4, 2008
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Open Help Requests for GM
Help Request Answers
2000 Buick LeSabre Limited 3.8L Seatbelt/key-in-ignition chime VIN: 1G4HR54K7Y
The chime for the key-in-ignition, seat belt, lights on, ect. does not work. My research shows that it works through the class 2 bus line via the radio but I am not sure how to check this. the seat belt light comes on in the dash and flashes but there is no ch...
2001 Buick Century Custom 3.1L 1-2 shift VIN: 2G4WS52591
This 01 Buick Century came with code PO 748 and shifting hard into 2nd. We rebuilt transmission, replaced pressure control solenoid, went through valve body every valve was free, and put a converter in it. Worked perfect for about a week. After about a week cu...
1994 Cadillac Seville SLS 4.6L cooling system VIN: 1G6KS52Y6R
vehicle came in overheating, would only run for a short time and start boiling over, no water flow to radiator, replaced thermostat, seemed OK, customer pickup drove on highway and overheated. Thermostat opening seem to have poor flow through radiator, hot on ...
2003 Cadillac CTS 3.2L abs VIN: 1G6DM57N83
customer purchased vehicle from us. brought back 300 miles after purchase complaining of intermitant pre-mature abs activation. was able to duplicate customer concern. found after vehicle sits for a couple hours that the abs will activate upon light applicatio...
1981 Chevrolet Corvette 5.7L Master cylinder VIN: 1GLAY8768B
I have repeatedly bled this system whenever brakes get mushy,,,myself and another shop repeatedly get air from right rear caliper. I cannot believe that it is another master cylinder. I have inherited this problem and am starting to believe that caliper may be...
1990 Chevrolet K1500 Cheyenne 5.7L idler arm VIN: 1GCDK14K1L
This K1500 is owned by a good friend of the other owner. We have installed several idler arms, A few pitman arms, over the last 2 years. This truck does not see much off road use. Pretty much everything in the front end has been replaced, New Moog Problem Solv...
1994 Chevrolet C3500 7.4L Excessive Emissions, Cuts out VIN: 1GBJK34NOR
We know what the problem on this vehicle is, but have been told by the dealer that the part is not made any longer. We have exhausted all efforts to locate the prom to the computer in this vehicle. Prom stamp is 8040. Replacing the computer does not help unles...
1997 Chevrolet Venture 3.4L Poor Idle Quality, Cuts out VIN: 1GNDX06E3V
Hu Guys and Girls I have this car here that is keeps me looking a ghost that is making it cut out. The customer bought iy to me for no start . It acted like the fuel was disable and cut right out after it started. I check it for codes and it showed PO101 maff ... Trouble codes: P0101
1999 Chevrolet Malibu 3.1L Cuts out, 17inch,vac-22iac mot VIN: 1G1ND52J7X
thank you all up front! i have three concerns. most troubling,any time gas is added the car stalls after the added gas(it had 3/4 tank of gas already,i added5.00- not even 2gals.)it stalled when restarting the car.again i did have a purge during non-command co... Trouble codes: P0171, P0172, P1441
2000 Chevrolet Blazer LS 4.3L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13W0Y
Hey fellow techs, kind of getting erked with this one. Vehicle came in with mil on. Pulled out codes p0172 and p0175 running rich. Also 02 sensor codes p1133 and p1153. Checked fuel pressure, 74 psi when running seemed high to me. Replaced regulator because of... Trouble codes: P0172, P0175, P1133, P1153
2001 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 3G1JC52441
I'm looking for a little insight as to how this system works exactly, as it is slighty different than other GM's. The vacuum port in the throttle body is above the throttle plate. So you have to raise the RPM's in order to pull a vacuum on the evap system. We ... Trouble codes: P0440
2003 Chevrolet Silverado 1500 5.3L engine noise VIN: 2GCEK19T33
hi i have a 03 chev pickup with a 5.3 motor that has a noise in the engine above 2000 rpm .at idle no noise oil psi on dash is 40psi at idle and goes up to atleast 55psi while driving.noise sounds like a lifter noise very clean motor inside oil changed at 3000...
2003 Chevrolet Suburban 1500 LS 5.3L mode door VIN: 1GNKF16T53
hello - this problem seemed to happen after blower resistor was replaced and the battery went dead. when u turn on the key the mode door motor cycles from the starting point to the end of its travel. at the end the motor tries to go further but the mode door s...
2004 Chevrolet Classic 2.2L Stall VIN: 1G1ND52F64
the car was towed to the shop for a problem with no starting conditions each time you get the car to start it will only stay on for 5 min before it shuts down by itself,in order to restart the car again you gotta wait at least 20 min,this happens constantly,th...
1998 GMC C1500 Sierra SL 5.0L Hesitation, Misfire VIN: 1GTEC14MXW
This ones taking us around the bend guys.I've had this truck on and off for 3 weeks and had it act up twice.First thing in AM,dead cold,between 0 to 10 degrees C,this thing will act like its got a near full restricted converter.Pulling away from the shop this ...
1987 Oldsmobile Toronado Brougham 3.8L Cuts out, Stall, MIL Lamp on VIN: 1G3E21132H
thanks for any help. came in to shop stalling and check engine light scanned ecu had code 55-ecu error. went to look at data on scan tool and half of the data did not read displayed 0, or was way off example timing displayed 9234. checked all powers and ground... Trouble codes: 55 (ecu error)
2007 Pontiac Grand Prix 3.8L low beams VIN: 2G2WP55227
Low beams will sometimes turn off while driving at night. Auto or manual position on switch makes no difference. I only got it to do it once in the shop after 40 minutes idling in park. Could not duplicate again for days of testing. DRLs seem to be normal. Rep...

Fixes & Summaries for GM
Fix/Summary Answers
1988 Cadillac Brougham 5.0L heater/ a/c unit VIN: 1G6DW51Y1J
First I want to thank John from Michican, Thomas from Texas, and Stephen from Oklahoma. Thanks for the input on this guys. After some wiggling and a friend stopping by, we found the only thing holding me up was a single 7 mm headed bolts that holds the defrost...
2004 Chevrolet Classic 2.2L No Start VIN: 1G1ND52F64
2005 Chevrolet Silverado 1500 4.3L mainteance VIN: 1GCEK14XX5
Thank you all for the help. I will tell the customer that I will change the fuel module when it gives trouble or at 100,000 miles which ever comes first. I thank you all for the help. I was stalled and needed help.
2005 Chevrolet Silverado 2500 HD 6.6L Poor Idle Quality, Stall, hard start/rough run VIN: 1GCHK29285
we removed the front cover and found the reluctor had messed up. replaced and put everything else back on and now the truck runs thanks for those of you who took your time to respond to us. Trouble codes: P0336, P0341.
1997 Oldsmobile Aurora 4.0L control arm bushing VIN: 1G3GR62C4V
Ok, we managed to fix the existing control arm bushings. I ordered a set of bushings for a 97 Grandprix, and sent the control arms to our local machine shop. I asked him to make me a steel collar with an upperflange to press the bushings into, then press the a...
2001 Saturn LW300 3.0L Exhaust VIN: 1G8JW84R51
When I was hoping a job couldn't get any worse...Turns out some of the valve seals floated on the valve stems. Not all of the seals were pushed down on the guide properly, therefore floated up. I didn't think it would be bad guides because it was using this ...
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