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Prev Professional Automotive Repair Technical Discussions for February 7, 2009
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Open Help Requests for GM
Help Request Answers
2002 Buick Rendezvous CX 3.4L 4 wheel drive not woring VIN: 3G5DB03E12
any one out their exp, this came in with service 4x4 mesage on, so we scan pcm found Lf speed sensor eractic.with scanner live data you could see Lf sensor eractic at low speeds. so we put on new hub bearing assembly, on left front and thought would take care ...
1995 Cadillac Eldorado ETC 4.6L Stall VIN: 1G6ET129XS
This car has had an intermintent stall for about the past month.The owner is in her 70s and cannot give a good account of any circunstances before the stall. I had the car for 2 days driving and running on the hoist. Many fixes pointed to crank sensors, so I r... Trouble codes: P0117 (Stall or near stall)
2003 Cadillac CTS 3.2L Key stuck in igntion-no unlock with trans in Park VIN: 1G6DM57N33
We have this 2003 Cadillac CTS that came in with Ignition key not turning all the way off, and not being able to put shifter into gear-stays locked in park. Also, we found the fuel gage not working, and part of the trip computer working, but anything associate...
1997 Chevrolet C3500 5.7L Mechanical VIN: 1GDJC34R2V
I had this 4L80E rebuilt at a tranny shop . After a couple hundred miles, it leaked at the front seal. The tranny shop found small cuts on the seal. This trans has been out 4 times since Sept.,all for front seal leaks. Sent it to another tranny shop with a dyn...
2002 Chevrolet Camaro 3.8L MIL Lamp on VIN: 2G1FP22KX2
what i need to know has anybody came across this problem . i donot see any type of reflash to open the window for the code setting parameters,im looking at alldata, im sure evrybody will send messages back to replace with genuine convertor. but my exhaust man ... Trouble codes: P0420 (cat eff)
2002 Chevrolet Avalanche 1500 5.3L 4wd drivetrain, diff, axles, transfercase VIN: 3GNEK13T22
Ive hit a wall here and need some help. This vehicle has a common sounding bearing "Whine" comming from the front left when in 4wd only. The noise is speed sensative, louder when faster but is always present. It does not appear to be rpm sensative. I have road...
2004 Chevrolet Silverado 3500 LS 6.6L MIL Lamp on VIN: 1GBJC34254
Hey guys I have a real head scratcher and am in desperate need of help.This vehicle has been in and out of shops in this area for the last 8 months.We just got it back last week after it had spent 2 weeks at the dealer and was supposed to be fixed.The vehicle ... Trouble codes: U0106 (Loss of communication with glow plug module), P2068 (Fuel gauge low), P2227, P2228 (Barometric pressure sensor voltage low)
2000 Pontiac Sunfire SE 2.2L Horn VIN: 1G2JB524XY
Good morning all.I feel stupid with this one but here goes.I have this sunfire that the horn is inop.pulled horn out tested power and ground @ horn and found horn is constantly powered(horn inop due to burned out).Ground ok as well.I can not for the life of me...
1995 Saturn SL2 1.9L Poor Idle Quality VIN: 1G82K5270S
hello techs these 2- codes are always there after clearing, radiator fan comes on at cold engine temperature + raises idle above base setting , seems like its above normal by 100-200 do not have any experience with these fault codes , with this fan on takes to... Trouble codes: 74 (transaxle), 73 (coolant temp)

Fixes & Summaries for GM
Fix/Summary Answers
2002 Chevrolet Impala 3.4L high idle
The problem was the BCM! It was intermittenly sending an A/C request to the PCM even though the HVAC switch was off. I test drove it for 10 miles and the car ran fine untill I pulled into the shop, then the RPM started to ramp up. While on the road test I n... Trouble codes: P0507.
2003 Chevrolet Silverado 1500 5.3L Excessive Emissions, MIL Lamp on VIN: 2GCEK19T73
Sorry our customer has not called or returned, we will repost the final verdict if we can get in touch with him or get the vehical back in. thanks to all that replied for the good tips. Andy Trouble codes: P0138 (B1S2 Voltage High).
2002 Pontiac Grand Prix GT 3.8L Blower control VIN: 1G2WP52K52
The ignition switch was the problem. It must be a very common issue as most of the replies pointed in that direction. Thanks and very best wishes to all who replied. Mike
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