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Prev Professional Automotive Repair Technical Discussions for June 29, 2011
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Open Help Requests for GM
Help Request Answers
2006 Buick LaCrosse CX 3.8L No Start VIN: 1G4HP57276
This car will quit while driving. After it quits the car will engage the starter. After a time the starter will start to work but the car will not start. Scan data says no crank signal. When the car does't crank the starter can be made to crank by activating... Trouble codes: P0520 (Oil pressure switch open)
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2004 Cadillac SRX 3.6L Trac Control VIN: 1GYEE63724
Hi all, This is my wife's car(figures!) It has a false activation of Traction Control usually on the highway after driving for a while. It does seem more frequent after rain but not exclusive to the rain. Sometimes when it occurs it feels like the car sways t...
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2003 Chevrolet Silverado 2500 HD 8.1L Unknown VIN: 1GCHK23G43
Hello Techs, This truck's A/C seems to have multiple problems. First when driving with the Air on, intermittently the compressor shuts off. We have replaced the low pressure switch and the inside Control Head and still have the same problem. Second, when the ...
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2005 Chevrolet Malibu LS 3.5L Exhaust Valves VIN: 1G1ZT52875
Reinstall heads and in the shop it sounded great. On the test drive the engine started to clatter like it had lost oil pressure with no loss of performance. Installed pressure guage for oil and we have great prressure. Removed valve covers to check for free pl...
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2006 Chevrolet Trailblazer LT 5.3L 1 cylinder VIN: 1GNET16MX6
HELP! this ones killen me. Runs Rough #1 cylinder missfire with the vlom installed there is no compression. Without the vlom there is compression in the #1 cylinder all other cylinders have compression at all times. We used a tech 2 on this truck to diss able ...
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2006 GMC Envoy XL SLE 4.2L no cimmunication with abs module VIN: 1GKES16S76
Abs light on and traction light on,no communication to abs module. Check power to abs module and ground and they are good. Terminal 32 from abs module according to alldata ign 3 voltage not sure what that means? Is that mean need 12volt? No power but if I supp...
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1999 Pontiac Grand Am SE 3.4L engine VIN: 1G2NE52E0X
Is it just my luck or has anybody else expierienced any type of weird over heating problems with the 3.4v6? I dread working on any more gm vehicles with this v6 when they come in overheating. It seems no matter what i do or try they never seem to run normal te...
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2001 Pontiac Montana 3.4L No Start VIN: 1GMDX03E31
Hello Everyone, Have a real difficult one here. The PCM sends a power signal to the fuel pump relay to energize the pump, that signal is missing from the PCM. I can jump power to that terminal on the relay and the van will run forever. That confirms that all t... Trouble codes: P0230
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Fixes & Summaries for GM
Fix/Summary Answers
1956 Cadillac Series 62 6.0L Camshaft VIN: CA56E50415
Thanks again tho all that replied. I tried to answer everyone individually.Pulled camshaft today and the fuel pump lobe is completly worn! No one remembered any particular Cadillac problems ,but a review of GM camshaft issues brought back many memories. Many o...
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1982 Chevrolet C20 Silverado 6.2L Poor Idle Quality, Stall VIN: 1GTEK14CXC
Well found a drive rod installed rolled engine bt hand everything felt great rod moves freely, gresed rod and installed pump fired right up runs good smokes a little bit but customer does not want to go anyfurther seeing how it is just a ranch truck. thanks fo...
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1996 Chevrolet K1500 5.7L No Start
After checking everything again, fuel, pulse, timing and spark. We were seeing about 20 kv at spark plug.Not enough We had suspected this at first. But only half the spark plugs were wet and of course they were the ones we did not check.Focused too much on the...
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1998 Chevrolet Blazer LS 4.3L Tcc VIN: 1GNDT13W8W
After further testing I did not that TCC enable would come back after 2-5 miles of driving. TCC enable would usually go to no on light to mid throttle ranges and also after stopping, TCC enable would stay at no. The issue was engine misfires. There were no cod...
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1999 Chevrolet Lumina 3.1L Unknown VIN: 2G1WL52M7X
Guys this ended up being the alternator. It finally acted up on me "full time" and quit charging. I guess what through me was it being interminent, as everytime it was here see was charging fine. And all I can come up with is that the alt would quit on him, lo...
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2001 Chevrolet Silverado 1500 LS 5.3L 2-3 shift VIN: 2GCEK19T51
Thank you guys as always great advises. Definately it was a transmission mechanical failure but customer desided to wait on that. I will post once we get the job done.
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2004 Chevrolet Tahoe LT 5.3L Unknown VIN: 1GNEC13T94
THANX FOR ALL THE HELP-GREAT LEEDS ON FIXING THIS THING--WE FOUND A CENTER BLEND DOOR MOTOR THAT WAS BROKEN-WE REPLACED IT AND IT ALL WORKED OUT FINE-I THINK THERE WERE THREE IN THAT DASH BUT FOR SURE THE CENTER ONE WAS NOT WORKING CORRECTLY-THANX AGAIN-BRIAN
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2005 Chevrolet Silverado 2500 HD 6.6L Crank reluctor VIN: 1GCHC242X5
Well 3 out of 4 replies were very helpful. One wasn't bad, but just incorrect. I was sent a link to a diesel forum that detailed how to get off the crank gear/reluctor with the oil pan in place by grinding two small 1mm grooves into the oil pan. Ahh, engine...
4
2006 GMC Sierra 2500 HD SL 6.0L battery light and shift indicator light VIN: 1GDHC24U16
sorry for the delay, this vehicle was fix with a new BCM, Replaced the BCM and take it to local dealer reprogram, every thing goes back to normal thank for all the reply.
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2003 Oldsmobile Silhouette Premiere 3.4L Cooling Systems VIN: 1GHDX03E03
this one is fixed replaced temp sender gauge is normal now
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