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Prev Professional Automotive Repair Technical Discussions for February 27, 2013
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Open Help Requests for GM
Help Request Answers
1984 Chevrolet C10 Scottsdale 5.0L MIL Lamp on VIN: 1GCEC14F7E
Ok Chevy/Dodge techs out there! We got a good one for you! This 1984 Chevy Pickup witch is an C30 3+3 4 door cab long bed cab that has been converted to an 2005 Dodge 12 valve cummins engine running gear, suspension, wiring harness, insturment cluster and then...
1994 Chevrolet Lumina Euro 3.1L 1-2 shift VIN: 2G1WN54T5R
i drove the vehicle on the expressway grand total 126 miles no issues no noises went to slow down and turn a corner rpms raised 3000 plus and speed was only 20 mph let off throttle and then reapplied still rpms went high then let off throttle second time and t...
1999 Chevrolet S10 2.2L Converter VIN: 1GCCS144XX
Trans shifts perfect thru all gears. When lockup comes in at about 38 mph it will go between full lockup ( 0 rpm slip at 33 percent tcc apply )to partial lockup( 275 rpm slip at 27 percent tcc apply).Jumps back and forth between these readings. At first I thou...
2005 Chevrolet Cobalt 2.2L 1-2 shift VIN: 1G1AK52F95
replace tcm with new unit after customer grouned out when jump starting vechile vechile would not shift out of first now after replacement vechile has power limited light flashing and wont rev up or move
2007 Chevrolet Equinox LT 3.4L Will not reset 3 mon VIN: 2CNDL73F87
Thanks in advance sorry not much info to digest. Need help with a starting point.this vehicle will not complete the ready moniters for evap ho2s and egr.i can control and initiate egr solinoid and vehicle will go thru evap service bay test and pass but still s...
2007 Chevrolet Malibu LS 2.2L Chmsl VIN: 1G1ZS58F37
Ok top techs...I have this car eating my lunch breakfast and dinner and I know Im missing something some where. The main problem is the CHMSL is always on, and sometimes, not always when the brake peddle is applied the engine will die. I have 8V DC on the whit...
2002 GMC Yukon XL 1500 SLE 5.3L Transfer Case VIN: 1GKFK16Z32
Greetings to all got this truck with a code co308 ab circuit motor low voltage we tested the actuator and found high resistance across motor terminals installed new 4x4 actuator with no change.i tried to clear the code but it will not clear.pulled fuses discon...
2010 GMC Canyon SLE 2.9L stability VIN: 1GTHTCD95A
Good day gents we are working on a 2010 canyon. Stab and abs light on. C0252 sensor correlation code. cleared codes abs light goes out but stability light still on. Activate abs pump for a sec, then stability light goes out. we can then drive and everything wo...
2001 Oldsmobile Bravada 4.3L Smog VIN: 1GHDT13W21
I can't get the cat and air monitor to run. Cal smog law allow you to have only one monitor not ready. Have anyone see this before. Thank for reading. Trouble codes: N0NE
2003 Saturn Ion-1 2.2L Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G8AG52F53
Hi Tech's, car came in from another shop with this headache. they replaced all these parts. what happens is while driving down the road or from a stop, when accelerating, the car will seem to start dying out. it still seems to be running but starts to slow dow... Trouble codes: 1599 (all codes show up)

Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1ND52J8Y
Thank you to all 14 responses. You all were right on the money. What I ended up doing was running the service bay test again with the rubber part of the fill tube clamped off. It passed. Since the cap was new I then knew it was the fill tube as all of you said... Trouble codes: P0440.
2002 Chevrolet S10 2.2L Hydraulic System VIN: 1GCCS14502
Thanks to all that replied. We put a new master cylinder & line assembly on from GM and for now all is well and we even have a better clutch pedal feel.
2005 Chevrolet Astro 4.3L MIL Lamp on VIN: 1GCDM19XX5
Hi to all, The purple white wire must have had a short because what was coming out of the ECM was def not the same at the sensor. I cut out that wire totally and ran a new wire from ECM to harness at o2. The sensor ranges correctly and got a sticker! I ha... Trouble codes: P0140.
2001 Pontiac Aztek 3.4L starting VIN: 3G7DA03E81
This vehicle is still in his shop. We have had two and a half weeks of snow and drifting, and I haven't been out to see what he found. I have this same vehicle posted again with a related problem, and you can see what is done by that time. Thus far, he has lea...
2003 Pontiac Sunfire SE 2.2L headlights VIN: 1G2JB12F13
thanks for all the help it was a broken black wire under the washer bottle.repaired wire all is fine for now.thanks again for all the help. james
2007 Pontiac Montana SV6 3.9L Cooling fans VIN: 1GMDU031X7
Customer never brought the va back for further testing.No repair to report.Thanks for the help.
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