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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 4, 2014
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Open Help Requests for GM
Help Request Answers
2001 Buick Park Avenue 3.8L MIL Lamp on VIN: 1G4CW54K11
Bought car and ran it for a couple of days with no problems.Car sat for 4 months. Now the airbag light come on with check engine light on 1 day latter. Security light come on 2 days latter. All cluster needles together swung back and fore twice and then was fi... Trouble codes: U1064
2007 Chevrolet Express 1500 4.3L Excessive Emissions, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on, Hard to start VIN: 1GCFG15X97
Vehicle long crank and hard to start. Will start with gas pedal depressed. When running cylinders 5 & 6 misfiring on tech 2 graphic. Let go of pedal will stall. Inj/balace tests and pressure tests show fuel system ok and no bleed down. Has spark from coil--thr... Trouble codes: P0300 (Multiple/random misfires)
2003 GMC Envoy SLE 4.2L MIL Lamp on
Code P01345...vehicle starts and runs fine...no rough idle 1...changed engine oil and filter 2...replaced cam sensor and checked connector 3...replaced cam actuator solenoid and checked connector 4...replaced crank sensor After each step the code was cleared ... Trouble codes: P1345
2002 Pontiac Bonneville SLE 3.8L No Start VIN: 1G2HY54K22
Have a repeat affender, vehicle had no coil output from one coil, found problem to be bad ignition module, replaced module and was fine for 6 months, vehilce died no spark on all three coils, tested all inputs and outputs and all lead to bad module, replaced a...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Cadillac Fleetwood 5.7L Stall VIN: 1G6DW52P9S
last night after supper it slapped me upside the head. the maf sensor wasn't seeing airflow becuz i had left the resonator/engine cover off for observation purposes. it is part of the air intake so this was letting the air bypass the maf. put on my slippers an...
2004 Chevrolet Colorado LS 3.5L Mechanical VIN: 1GCDT13644
I installed a new(reman) cam actuator. This fixed it. When I removed the old one I noticed it was very loose and it actually rattled. Thanks for everyone's help
2006 GMC Envoy SLT 4.2L transmission VIN: 1GKDT13S46
I did a trans fluid and filter change and was unable to get the problem to occur again. customer has not been back as of today. I would like to send Clifford of Texas a special thank you for grading my post.
2008 Saturn Vue XR 3.6L Bleeding VIN: 3GSCL53728
Thanks everyone for your replies. We started opening up the brake lines at the right front and worked our way back. We determined the master cylinder wasn't pushing out enough fluid out of the back line. Replaced it with another master cylinder and the system ...
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