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Prev Professional Automotive Repair Technical Discussions for December 13, 2012
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Open Help Requests for GM
Help Request Answers
1998 Chevrolet S10 LS 4.3L master cylinder VIN: 1GCESTFX5W
Truck came to us with complaint of no pedal. Lifted truck and found new left rear brake line. No ABS codes, tried ABS bleed procedure- works. Tried to bleed seems to not get fluid to rear wheels. Drove and slammed pedal like a panic stop to reset prop valve. V...
2002 Chevrolet Impala 3.8L No Start VIN: 2G1WF52K42
vehicle has cold start long crank problem, eventually will start, coil and fuel is there, crank sensor is good all other data, cts, etc is good. Problem mainly occurs cold and after sitting a while, fuel pressure remains good while sitting. Checked for related...
2002 Chevrolet Astro LS 4.3L No Start, Hesitation, Stall, Misfire, MIL Lamp on VIN: 1GNDM19X42
Vehicle starts to stumble/misfire until it dies when it gets close to operating temperature. Got DTC p0300 random misfire. Swapped ignition coil, ignition module, and ckp sensor with known good and problem still remains. Monitored cmp sensor waveform on a scop... Trouble codes: P0300
2003 Chevrolet Impala LS 3.8L battery VIN: 2G1WH55K93
'03 Impala 3800. So customer complained of car cutting off at stoplight. It hasn't thrown any codes. She drove it to our garage and had no problems. When I got ready to pull it in the next day, the battery was weak. After checking the battery, it was found to ...
2007 Chevrolet Colorado LS 2.9L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GCCS14917
Thank you to all who take time to read this and help if possible. I have a 2007 Colorado that has been extremely well serviced. every 1500 to 2k mile oil changes driven by an elderly gentleman that takes it pretty easy. hasn't had any engine work done before. ... Trouble codes: P0017 (Crank Position - Exhaust Cam Position Correlation), P0014 (Exhaust Cam Position Sys Performance)
2007 GMC Yukon XL 1500 SLE 5.3L Charging VIN: 1GKFK16357
customers issue is all lights flicker and flash. dash, interior taillights and headlights, battery and alternator ahve passed, using snap-on d-tac tester
2000 Pontiac Grand Prix GT 3.8L Poor Idle Quality, Surge, Misfire VIN: 1G2WP52K8Y
Veihcle came in with complaint of running very rough when owner got out of work each day. Seems to be more prevalent when cold burt we seem to have had the issue when warmed up also. When car starts running very poorly, heavy missfires on cylinders 1 and 2 whe... Trouble codes: P0300 (Random missfire)
2008 Pontiac G6 GT 3.9L Keyless Entry VIN: 1G2ZH36138
Replaced battery & now keyless entry or remote start inop. Has factory remote start -- dont have vehicle yet, customer called to let us know - just looking for ideas for when they bring it in
2006 Saturn Ion-2 2.2L MIL Lamp on VIN: 1G8AJ55FX6
Hope there is someone out there that may shed some light on this Ion Car came into shop Dog chewed off wires to prndl switch,and brake lines (no ABS) repaired and replaced harness on engine and to fuse box underhood and connector 2to the ecm and connector to t...

Fixes & Summaries for GM
Fix/Summary Answers
2007 Cadillac Escalade EXT 6.2L MIL Lamp on VIN: 3GYFK62847
I figured that the regulator was in the fuel pump. i just wanted more input. we put a new dealer pump in and it fixed the problem. fuel trims are normal and the o2s are switching. fuel pressure at idle was 61.5 psi. thanks every one Trouble codes: P0172, P0175.
2001 Chevrolet S10 4.3L Distributor VIN: 1GCCS19WX1
Thank you everyone for your time and help. After careful thought I decided to purchase a new distributor. My local parts supplier was very helpful with the pricing. I purchased a new Richporter Technology distributor. After removing the old one I could see tha...
2003 Chevrolet Malibu LS 3.1L Front brakes VIN: 1G1NE52J03
Thank you all for the very useful info. But the cust doesn't want to go any farther with the issue. Im very disappointed i was looking forward to try the suggestions you all kindly gave me. But sadly the customer is trading the car in. If she does trade it in ...
2005 Chevrolet Aveo LS 1.6L Poor Idle Quality VIN: KL1TD52665
First off, thanks for everyone's input. I had a second repair shop look at the car to double check the work I had done. They retested much of what I had looked at and got the same results so they also recommended pulling the head and doing the work per the TSB... Trouble codes: P0300.
2006 Chevrolet Silverado 2500 HD LT 6.6L ignition,M shift ind. VIN: 1GCHK23D96
thanks for the couple replies. after troubleshooting the manual shift indicator i found a broken harness at column shifter for gear controls.the break was right where the little plastic harness fasteners are. all four wires were broken and intermittantly touch...
2009 Chevrolet Traverse LS 3.6L MIL Lamp on VIN: 1GNER13D59
Sorry for delay, but was waiting to see if I was going to get another crack at diagnosos. Original shop returned vehicle to customer and sent her to dealer where she was informed that the Maf was bad. This is the same dealership that sold the Maf to shop(shop... Trouble codes: P0101, P2177 (Fuel trim lean bank 1 on cruise or accel), P2179 (Fuel trim lean bank 2 on cruise or accel).
2001 Pontiac Aztek 3.4L Mechanical VIN: 3G7DB03E61
thanks all .david and randy nail it i removal the stub shaft out it is not easy to do but i got it.thanks again
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