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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 18, 2013
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Open Help Requests for GM
Help Request Answers
2003 Buick Century Custom 3.1L instrument cluster VIN: 2G4WS52J93
We installed a kill wire.We cut the purple wire to starter and basically put a switch in between. The switch works great but now we dont have any gauges on the instrument cluster. We unplug the instrument cluster and plug it back in and the cluster works till ...
1999 Chevrolet K1500 LS 5.7L Poor Idle Quality, Misfire VIN: 1GNFK16RXX
Misfire on 6 is continuous on cylinder 6 after head was re- installed. We replaced #1 and #5 injectors on the spider due to misfires before tear down. I turned of injector 6 with scan tool and felt no change. All other cylinders showed a felt change when injec... Trouble codes: P0300
2005 Chevrolet Impala 3.4L compressor Noise VIN: 2G1WF52E45
This car came in and customer thought it had a bad wheel bearing, Turned out to be the a/c compressor was the problem. So we replaced the compressor with new from Ranshu along with the dryer and expansion block the car came back three weeks later with the same...
2006 Chevrolet Impala LTZ 3.9L No Start
Ok, 2006 Chevy Impala 3.9 LTZ - intermittent no crank/no start. Please forgive the lack of testing information on this vehicle - it came as an intermittent no crank/no start from another location. I got the vehicle today and have yet to duplicate the problem -... Trouble codes: P0513 (p1682-), P1682
2007 Chevrolet Impala LT 3.9L bcm
Disconnected the battery to do the stated work. When we finished and re-connected the battery the key won't return to the lock position, it won't start, the door locks and the windows don't work the interior lights don't work, it won't shift from park and ther...
2007 GMC Sierra 3500 Classic SLT 6.6L brake pedal feel VIN: 1GTJK33D77
This truck stops just fine by itself. When sitting still, you can make pedal go to the floor with pressure. Moderate pressure does not bleed off. Customer pulls heavy horse trailer and says brake pedal goes too far down. This all started about a year ago. Deal...
1987 Pontiac Firebird Trans Am 5.7L fuel injection VIN: 1G2FW2187H
GM Techs. here 1 for the books. This vehicle was at another (well known) repair facility for a year and kicked their butt. They threw everything they could think of and had no success. The engine runs lean with the MAF plugged in. HC's @2000 and CO's@.16%. als...
2000 Saturn LS2 3.0L t-belt rerpl VIN: 1G8JW52R5Y
Removed drive belt and timing belt cover, found t-belt was cracked badly and very loose. Bearing for tensioner roller between crank and #1 camshaft had gone away...I don't have the Saturn special tools (cam lock, crank lock,guide pulley adj. wrench, sprocket t...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Chevrolet Camaro Z28 5.7L throw out bearing VIN: 2G1FP22P3S
thanks for all the idea's. I replaced the flywheel with new, replaced the master and slave as an assembly, and had a couple of talks with the owner about driving with his foot resting on the pedal. Also he informed me that a month before I did the clutch the f...
2004 Chevrolet Suburban 1500 LS 5.3L fuel VIN: 3GNFK16Z14
I installed the vin T engine and used the original fuel injectors and rails. I runs like a top. Thanks to all of you for confirming that I could make the swap.
2004 Chevrolet Suburban 1500 LS 5.3L Poor Idle Quality, Hesitation, MIL Lamp on, will not shut off VIN: 3GNFK16Z14
I had to perform a relearn on the TPMS sensors and cleaned the airbag connector per the TSB. Thanks to all of you for the help. Trouble codes: U1064 (loss BCM VTD DIM PZM /or SBM data), U1041, U1026, U0107, P0200, P0230.
2007 Chevrolet Impala LS 3.5L No start, no dome lights, no PRNDL indicartion VIN: 2G1WB58K07
Special shout out to Kevin [...]. He emailed me wiring diagrams and everything when my sum...er alldata went down the day after I made the request. Checked all powers going to BCM and paid extra special attn. to the ignition switch signal, all wiring had ...
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