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Prev Professional Automotive Repair Technical Discussions for September 5, 2014
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Open Help Requests for GM
Help Request Answers
2003 Cadillac CTS 3.2L calipers VIN: 1G6DM57N83
Car came in for wheel bearing noise, howling from Left rear. Easy enough. Noticed it needed pads and rotors all the way around too. Slam dunk. New moog hub bearing assy., quiet as a mouse, new pads and rotors all the way around, only now, all 4 brakes drag all...
1967 Chevrolet Camaro 5.7L shudder not sure
pulling away or backing up only at low rpm about 1500rpm,1st & reverse only , shudder's very bad but not every time , no vibration when driving , u joints ok , engine mounts ok, put a new clutch in it cut the flywheel nothing looked bad but replaced it anyway ...
2006 Chevrolet Tahoe Z71 5.3L Fuel Gauge VIN: 1GNEK13Z16
Hi All, We have this 06 Tahoe in for leaking fuel out of a rotted sending unit but the fuel gauge worked fine. We at first replaced the module with an aftermarket one and transferred the original level sensor over. The gauge read empty. Put 5 gallons of gas in...
2011 Chevrolet Express 3500 6.0L A/C Comp VIN: 1GB3G2BG4B
This is a cutaway bus with a carrier system in it yes i know i should have replaced the expanison valve but couldnt get one at the time now i have a noisy compressor again could a slightly plugged up expanison valve could the compressor to be noisy
2005 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK23205
We have no injector pulse at injectors. We have tried a known good crank sensor with no luck. Voltage 1 circuit(s) into FICM is battery voltage, 12.4v, KOEO. Voltage drop on grounds at FICM is less than .09v. Injector supply voltage from FICM is 3.5v on connec... Trouble codes: P089, P1093 (Fuel rail pressue low under load.)
1999 Pontiac Firebird Formula 5.7L Speed Sensor VIN: 2G2FV22G8X
First, Thanks to All who will take time to read this. Have Code C0040 R/F speed sensor circuit. Replaced R/F Speed sensor, cleared code. The code immediately returned. I have checked continuity of the harness from the speed sensor up to the EBCM, with both end...
2004 Pontiac Grand Prix GT2 3.8L blower VIN: 2G2WS52254
I have a blower that fails to start from time to time. The bushings are squeaky, and rusty. If I tap on it, or spin it by hand it tends to start running, or runs for a seconds,and turns back off. I have a new motor ready to install, and I know about the bullet...
2006 Pontiac G6 GT 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2ZH558X6
This has a slightly rough idle. But at 1200 rpm #2 cylinder misfires with out a load on it. Put it in gear, bring the rpms up and it has no misfire. Anyone have any ideas? Trouble codes: P0300
2006 Saturn Vue 2.2L engine VIN: 5GZCZ33D36
Car came in with what the customer described as a misfire, engine noise, and shaking. I could only duplicate the engine noise. It sounds like a diesel after it gets hot. Noise sounds like it's coming from the timing chain area. I took the valve cover off and t...

Fixes & Summaries for GM
Fix/Summary Answers
2011 Buick Enclave CXL 3.6L driver seat heater VIN: 5GAKVBEDXB
you guys are right and confirmed my thought, though when i sent it to the dealer they said i needed a window switch, told'em if that is so they can warranty the one i just put in,,,changed the mind real quick and got it programmed and sent back to me right way...
1957 Chevrolet Bel Air 4.6L Differential
Thanks to everyone who replied all of it was very helpful. Big special thanks to Arnie (who provided all info sent by, fax) and Jake who also sent detailed info in his replay. Thank you IATN. Now all I have to do is see if customer wants us to install a 700R4 ...
2001 GMC Sierra 1500 SL 4.3L Misfire, MIL Lamp on VIN: 1GTEC14W11
I want to thank each one of you that offered help in my request. This vehicle is partly fixed. Like I mentioned before, all the injectors had been replaced with the upgrade unit. Ignition coil, crankshaft sensor with shims (4) distributor, maf sensor, map sens... Trouble codes: P0300, P0301, P0304.
2002 Oldsmobile Bravada 4.2L No Start, Misfire VIN: 1GHDT13SX2
Calling this one fixed. I ended up replacing all the coils, although the failure pattern seemed to be a little abrupt, it has not returned. I still am somehow hoping the coil failure did blow the fuse. I have checked, double checked and triple checked the ...
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