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Prev Professional Automotive Repair Technical Discussions for April 7, 2015
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1967 Chevrolet Camaro 5.3L Poor Idle Quality, Cuts out VIN: 123377N202
Re-building the 4160 Holley that was on this car. My question pertains to the secondary metering plate. Every one of these that I have ever done (That's probably nearly 100 of 'em) have a thin metal plate (& gasket)that goes between the metering body and the t...
1997 Chevrolet Lumina 3.1L fuel tank VIN: 2G1WL52M1V
hello everyone i have a strange one, car came in with fuel tank collapse and leaking. so we replaced. came back with tank sucked in! found vent was plugged so we replaced and has been good until today only went 200 miles. vent is working can smoke it and close... Trouble codes: 440 (evap system malf)
2008 Chevrolet Silverado 1500 WT 5.3L Misfire VIN: 1GCEK19J28
this is my 1st afm mf 70 lbs compression wet or dry misses on #6 air in cylinder can be heard thru intake.possible intake valve leaking/ bad lifter ?? I just want to make the right repair the first time.It looks like I'm going to pull some heads and have em ch...
2009 Chevrolet Silverado 2500 HD LT 6.0L engine
pulled valve cover checked lift and springs a ll good engine very clean internaly slight valve clatter at idle skips mainley at idle goes away at 800 rpm but sets a 301 in about in 1 min this a 6.0 vin k engine
2006 Pontiac Solstice 2.4L high idle VIN: 1G2MB33B16
Hello everyone, My Team and I thought after extensive research that our 'high idle' was due to the throttle body being dirty which it was but after disconnecting the throttle body the idle maintains itself in a 'high idle.' Even replaced the throttle body an... Trouble codes: P0122 (Throttle Position Sensor 1 circuit low voltage), P0223 (Throttle Position Sensor 2 circuit high voltage)
2007 Pontiac Grand Prix 3.8L No Start
Hello friends, 07 Grand prix will not start. No crank or nothing. I have no check engine light. No communication from pcm.Checked Everything. I have no power at ign,injector,or ign module I applied power to those fuses with still no luck cannot get power at in...

Fixes & Summaries for GM
Fix/Summary Answers
2004 Buick Rendezvous CX 3.4L No Start VIN: 3G5DA03EX4
THANK YOU!!! all of you that replied. I told my tech the crank sensor would be a good gamble. His reply was "which one?" I didn't have an answer. One of the replies pointed to the right one (I think all he said was the one on the side of the block). The reaso...
2008 Buick Enclave CXL 3.6L No Start, MIL Lamp on, no crank VIN: 5GAER23778
Well guys- go figure- it was the throttle body causing the no start! Even though there is no proof I suspect that GM disables the starter if specs on the throttle body are out of range to avoid run away acceleration. Either way its fixed! Greg and crew Trouble codes: P2176.
2001 Cadillac DeVille DHS 4.6L runability VIN: 1G6KE57Y91
Well this one is fixed! I had a ton of excellent replies which included bad grounds, ecu, fuel pressure regulator, injector signals, and downstream o2 sensor. Half of the replies were right on the money however. I started checking the wiring from b2s1 to th...
1998 Chevrolet Corvette 5.7L evaporator VIN: 1G1YY22G2W
thanks for all the help full replies iatn, i replaced the ac compressor, rechecked the evaporator checked ok, its been a week sence i replaced compressor it has not gone low so that was the whole leak.
2005 Chevrolet Silverado 1500 5.3L Unknown VIN: 1GCEK19B75
Seems this one is fixed. Thanks to all for your input. This is what was found: The transfer case had a few issues including the shift fork plastic tabs being broken ( and sitting in the bottom) and also the rear snap ring groove in the case half was worn about...
2006 Chevrolet Silverado 2500 HD LT 6.6L No Start VIN: 1GCHK23D16
Thanks to all that replied. After much testing and quite abit of learning about the ins and outs of Duramax we found the problem. As several suggested the reluctor ring on the front of the crankshaft is loose. It can be moved close to two tooth widths by stic...
2008 Chevrolet Silverado 1500 WT 5.3L Unknown VIN: 1GCEK19018
I am going to call it fixed but it left with a firm 1-2. I replaced the 1-2 accumulator, the shift solenoid and installed the upgrade to the 1-2 accumulator valve. I reprogrammed the ECM, TCM and the Instrument Cluster which was doing some weird things. It ...
2009 Chevrolet Aveo LS 1.6L Starting
I want to thank everyone for the great replies,took the vcim appart and it was full of salt and corrosion now is up to the customer to decide what he wants to do.Love my rust belt area.Thanks again.
2011 GMC Terrain SLT 3.0L shake at idle VIN: 2CTFLXE50B
well this one is fixed and robert hit it on the head, there had to be 12qts of oil in this baby. drained oil to full level and it ran great. thanks everyone for all the help. you know how it goes dont over look the basics!!!
2006 Pontiac Solstice 2.4L Air Bag Light VIN: 1G2MB33B36
The consensus was that the bus was down. I agree but the dealership did not want to spend the money to diagnose and repair this car. They sent it to the auction, so someone will see this car again. Thanks for the help.
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