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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 14, 2010
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Open Help Requests for GM
Help Request Answers
1989 Chevrolet Caprice Classic 5.0L Springs VIN: 1G1BN51E4K
Does anyone remember the moog part number for the front coil springs that will lift this caprice up high in the front.i'm buyng the coil springs for my son for christmasone of my co workers said to just use anything for a big block but i only want to do this o...
1999 Chevrolet Silverado 1500 LT 5.3L Blower Resistor VIN: 2GCEK19T3X
Hi All, I have a issue with a customers vehicle where he has had 3 different blower motor resistors replaced due to no high blower speed. All other speeds work properly. After testing I found that the 30amp fused lead coming to the resistor was dead and had a ...
1999 Chevrolet Lumina 3.1L Dragging VIN: 2G1WL52M9X
This fine GM product came in with the customer stating," I stopped for a stop sign and the car would not go anymore." I went for a drive with the customer and the vehicle ran great at first then when we stopped at a stop sign the AIRBAG light came on and the c...
2002 Chevrolet Trailblazer LS 4.2L Headlights VIN: 1GNDT13S72
New ignition switch fixed blower problem.
2003 Chevrolet Silverado 1500 5.3L Poor Idle Quality, Surge VIN: 1GCEK19T93
This engine idles low and surges to stay alive about 450-600 RPM. Misfire counters are counting up on all cylinders while at idle. After a while it will throw a P0300 random misfire code. Above idle, the engine runs great with no cutouts or misses. I have per... Trouble codes: P0300 (Random Misfire)
2006 Chevrolet Impala LS 3.5L reduced power VIN: 2G1WB55K76
Customer does mostly highway driving. Every couple days, while on the interstate, "reduced power" comes on. It will accel some but very sluggish. We could not duplicate so we cleaned t-plate and cleared codes. 4 days later, car returns with only p2135 (correla... Trouble codes: P2135, P0121
1998 GMC Sonoma SL 2.2L NO 1st gear VIN: 1GTCS1943X
This truck Starts IN 2nd gear not 1st gear. I put the scanner and its starts in 2nd all gears work fine excep 1st when i put it in Low gear manualy it goes into 2nd gear. When I force 1st gear with the scanner it displays its on Park Neutral. NO Check Engine c...
1999 GMC K1500 Sierra SLT 5.7L MIL Lamp on VIN: 1GTEK19T9X
The vehicle originally had code P0332 stored indicating an issue with the "rear" knock sensor circuit. Replaced both knock sensors and the sub harness. Now, we no longer have the P0332 code stored for the rear knock sensor but the light is back on with code P0... Trouble codes: P0327 (Knock sensor circuit - front)
2006 GMC Sierra 2500 HD SLT 6.6L Electronic VIN: 1GTHK23D46
ALLISON EXPERTS HELP!!! We are a tire shop and repair facility but no transmission guys. This is my personal truck which makes this such a pisser. There is no one around me close that knows anything about Allison transmissions. I have a remote start that has b...
1995 Oldsmobile 88 Royale 3.8L Intake plenum VIN: 1G3HN52K1S
We replaced this guys intake plenum in June because the EGR had melted it like these cars do. Now, 4000 miles and 6 months later it's melted again in the same fashion just not to the same degree. I checked codes thinking maybe the motor was too lean and raisin...
1996 Pontiac Firebird 3.8L MIL Lamp on VIN: 2G2FS22K2T
Initial inspection revealed foreign material in purge solenoid. We replaced purge solenoid, flushed the lines from the tank, and replaced charcoal canister. Vehicle returned a few days later MIL 'ON' P1441... again. Data shows "Evap Vacuum Switch"[ON]. This ... Trouble codes: P1441 (Evap flow detected during non purge event)
2004 Pontiac Grand Prix GT1 3.8L power steering pump VIN: 2G2WP52204
Hi Guys n Gals, My customer is extremely sensitive to noises. Got most all of the noise out of her car last year, did a lot of pm and service, did not do recommended power steering fluid flush. Came in last month for a noisy power steering pump, had been havin...
2006 Pontiac G6 3.5L Cuts out, Stall VIN: 1G2ZG55B56
the car stalls on coast intermittently.there are no codes in car even after stall.put the car in neutral and starts right up.does not miss or hesitate car runs great otherwise.the local dealer replaced throttle assembly and fuel pump. then they gave up and sai...

Fixes & Summaries for GM
Fix/Summary Answers
2007 Chevrolet Suburban 1500 LT 5.3L Oil pressure gauge VIN: 1GNFK16337
I bought the tool to check oil pressure and oil pressure was 47 at idle warmed up. I checked the screen under the pressure switch and it did not look bad so I removed screen and installed sending unit started truck pressure was about 55 so I put in a new scree...
2001 GMC Sierra 1500 SL 5.3L No Start VIN: 2GTEK19T01
Its been a week and havn't had any more problems after replacing ignition 1 relay thanks to everyone who responded.
2003 GMC Savana 2500 4.3L starter VIN: 1GTGG25V03
IM am waiting fot the driver to drop van back off -this was a wet start only on starter crank - and we now are into our snow season -so I dont think he will return truck untill spring time --we got some very good info about across feed power into that starter...
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