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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 2, 2010
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Open Help Requests for GM
Help Request Answers
1995 Buick Park Avenue Ultra 3.8L Surge VIN: 1G4CU5216S
Hi every one out there,i usually dont ask for help,but i really need you guys expertise,ok this vehicle runs perfect till you press the brake pedal.ok here we go,you drive the car till it goes into overdrive and lock up,about 50 t0 55mph and if you press the b...
1981 Cadillac Eldorado 4.1L Doesn't engage VIN: 1GAL5791BE
Cruise doesn't work on this car. I get a Code 60 as an engine code. After running the chart for this code it says to check the ADL switch. (this switch is also sometimes referred to as the "drive switch") The wiring diagragm shows it having an orange and a bla... Trouble codes: 60 (Check ADL switch)
2003 Cadillac DeVille DTS 4.6L No Start VIN: 1G6KF57973
This 03 Cadi was towed in for a no start. Battery dead of course so I charged it. Went to start it and turned the key. The cluster comes on but when you put it in the start position the cluster shuts down,but the starter does not engage. I checked the starter ... Trouble codes: U1000 (Class 2 malfuction)
1990 Chevrolet C1500 Silverado 5.7L Poor Idle Quality, Surge, Cuts out, Misfire, Poor Fuel Economy VIN: 12GEK19K41
I have this Chevy Pickup that cuts out as soon as you get on the road and hit about 15 miles an hour. It only does this one time, or until the next time you turn the key off and back on again. Then the next problem is that at thirty miles an hour, the TCC star...
1995 Chevrolet Lumina 3.1L Hesitation, Cuts out VIN: 2G1WL52M9S
Having trouble with car while driving at 50 mph, if you accell normally and only at this speed you get a one second jerk or bump like the engine cut out for a second or the trans did something. While monitoring the data on the solus all looks normal. We replac... Trouble codes: 28 (Trans press switch manifold)
1996 Chevrolet K3500 Silverado 6.5L No Start VIN: 1GCHK39FXT
Hi I should have never let this get towed in to my shop but it is here now. Any suggestions are appreciated and will be tried. The Customer cranked on it until Positive cable that leads to starter caught on fire. Melted Battery on passenger Side Also Melted gl...
1998 Chevrolet K1500 Silverado 5.7L MIL Lamp on VIN: 2GCEK19R6W
hello friends, trying to tackle code p1404 egr pintle sticking open, cleared code, road tested vehicle, code reset with in a short drive, scan tool was showing desired and actual %, appeared to be within range, not showing partially stuck open, removed egr val... Trouble codes: P1404, P0446
1999 Chevrolet Malibu 3.1L tcc lockup VIN: 1G1NE52M1X
This Vehicle has a torque converter lockup problem. the transmission will shift fine up to 3rd gear, once your in 3rd gear and at a steady cruise the Torque converter clutch will start to engage and then it goes back to 3rd gear causing a small bump affect fro...
2002 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 2GCEC19T72
I was second on this jog and found intake leaking with smoke text. Replaced gasket. and fuel trim long turm stays at 25% low at 0% until car worms up . then it starts working normal . I think it needs to be flashed. check light was on for two years. so i think... Trouble codes: P0171, P0174
2002 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S12
Hi techs . I have looked on the posts for a real answer on this one but not sure if posts had a real true answer. My problem is that had this Trail Blazer on the lot for a few months and never had a problem . So we go to sell it and the check engine light is o... Trouble codes: P1345 (crank/cam sensor correlation), P0014 (cam phaser performance), P0340 (camshaft postion sensor problem)
2004 Chevrolet Silverado 2500 HD 6.0L Mechanical VIN: 1GCHK23U54
Hello all , have 2004 chevy K2500HD 6.0 gas engine. has developed a vibration at 2000-2500 rpm. Noticeable mostly on yhe road but can also feel it sitting still & just reving engine up thru 2000 - 2500 Rs.Just wondering if anybody else had this problem. Thanks...
2004 Chevrolet Silverado 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1GCHK23U54
Vehicle first came in from a used car dealer after was just purchased with a chech engine light on with multiple codes P0101 Mass Airflow Performance P0131 Heated O2 sensor ckt low volt B1 S1 P0151 Heated O2 Sensor ckt low volt B2 S1 P0300 Random Misfire Check... Trouble codes: P0300
2005 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on VIN: 1GCHK23225
back now with same problem. performed egr activation test and all % match des and acutual and maf drops dramatically. maf 48 no egr, 28gs with 10% egr, 3gs with 30%. performed amp test on 5vlt term a to b= .165. tested volt drop on b to grn .05volts. calculate... Trouble codes: P0401, P0404, P1404
2005 Chevrolet Silverado 1500 5.3L Front Pads And Rotors VIN: IGECK19Z55
Gm techs,I got a customer here with this truck and front pads and rotors are shot,its only been about 15000 miles since last replaced but not by me some heavy equipment mechanic at the guys work,no ABS codes,wheels turn pretty freely,opened bleeders no fluid s...
2006 Chevrolet Silverado 1500 LS 5.3L 1-2 Shift VIN: 1GCEC19Z66
I have a 2006 Silverado with the 5.3 and a 4L-60. I can operate the 1-2 solenoid from the PCM with power probe. That tells me the wiring is in good order. However, using scan tool to command the 1-2 solenoid does not operate solenoid. Good power at solenoid.
2006 Chevrolet Express 3500 6.0L abs VIN: 1GAHG39U46
Allright Chevy Express masters... This van is kicking my butt... The only code it throws is a C0045- Ive did my research and of course checked my air pressure. The ABS and Traction light come on and off and The ABS activates but not everytime. According to the...
2007 Chevrolet Tahoe LT 5.3L IPC backlighting won't turn off VIN: 1GNFK13037
The IPC backlighting on this Tahoe is always on at highest intensity no matter what the condition. Key on, key off, key in your pocket, doesn't matter. This has been happening for about three weeks and naturally it kills the battery unless the #46 underhood fu...
1995 Oldsmobile Aurora 4.0L MIL Lamp on VIN: 1G3GR62C5S
Vehicle first came to us with engine stall no HVAC controll and had codes 24 no vss signal, code 52 Defective ecm (ecu RAM chip error KAM) 75 VSS interruption, 93 TCS PWM link failure, 121 A/C high side temp sensor problem, 120 A/C low side temp sensor problem... Trouble codes: 15 (Coolant temp signal high or open), 14 (Coolant temp signal low or shorted), 73 (Intermittent coolant temp)
2004 Pontiac Grand Prix GTP 3.8L blower motor VIN: 2G2WR52444
Vehicle is back after two days with another failed module. TSB says a voltage spike from the wiper motor causes the failure yet it failed after TSB corrective action was performed.
2002 Saturn L300 3.0L No Start VIN: 1G8JW54R92
This car was dropped off with the complaint that the interior lights would flash once the car was started. Also the the security light would iluminate along with the MIL. When I checked it out, it seemed to do it everytime. Even when i just turn the key on wit... Trouble codes: B1000 (ECU Malfunction)

Fixes & Summaries for GM
Fix/Summary Answers
2000 Buick LeSabre Custom 3.8L dash gauges, plus VIN: 1G4HP54K4Y
After 18 help request the customer did not want to try to fix this car. He never brought the car back to me, he informed me he was trading the car to a new car dealer. many thanks for the help. ron [...]
2003 Buick Century 3.1L instrument's VIN: 2G4WS52JO3
Just about everyone said to replace the ignition switch. (electrical side) and that fixed the problem and the customer is happy! thanks to all that helped with this issue, your the best tool in my box.
2006 Buick Rainier CXL 4.2L Starting VIN: 5GADT13S26
2001 Cadillac DeVille DTS 4.6L Relay VIN: 1G6KF5791U
Hi guys Ty to all repsonses I believe the relay to be operating as designed and gave back to the customer as such.
1989 Chevrolet Caprice Classic 5.0L No Start, Stall VIN: 1G1BN51EXK
I want to thank every one who responed. I went back to where the problem started. The problem was the first reman distributor I installed was bad. When I put the old one back in the pronges on the distrbutor side where the coil connects where bent. ...
1994 Chevrolet Caprice Classic 4.3L No Start VIN: 1G1BL52W5R
thanks everyone for your help. although i was vague in my trouble shooting findings , i thought the distributor was my problem from the start. i bought a new distributor, installed it and the vehicle started up and runs great. again thanks everyone for all you...
2005 Chevrolet Silverado 3500 6.6L No Start, Poor Idle Quality VIN: 1GBJK34285
Thanks for the responses. I purchased the injector block-off tools and found when #7 and #8 were blocked off, the truck would crank and start in a normal time. Suction side pressure would hold at 5 psi for over five minutes. Suspected leaking injectors. Th... Trouble codes: P1093 (Fuel pressure low during enrichment).
2006 Chevrolet Colorado LS 2.8L starting VIN: 1GCDT13856
Colorado is fixed and equipped with a new ignition key and tumbler set, and seperate housing. The sensor is part of the housing itself, and must be purchased seperately. I probably could have re-used the tumbler, but the price was very reasonable and gave me p...
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