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Prev Professional Automotive Repair Technical Discussions for May 1, 2010
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Open Help Requests for GM
Help Request Answers
1991 Chevrolet S10 Blazer 4.3L Poor Idle Quality, High oil pressure VIN: 1GNCS18Z7M
Hey everyone. Just a quick question for you guys. I have a 91' s10 with the TBI 4.3 and the complaint is unusually high oil pressure. The pressure starts off at about 40 then after 10 minutes it climbs to 80 under acceleration. While at idle or when off the ac...
1996 Chevrolet C1500 Suburban 5.7L 3rd Gear VIN: 1GNEC16R7T
I am at a loss here and am looking for some input. I rebuilt this 4l60e trans in this suburban,it was burnt up & didn't move. I replaced the converter, & installed a transgo valve body repair kit. The truck came back in shortly after with no third gear. I pull...
2002 Chevrolet Silverado 2500 HD 8.1L Stall VIN: 1KDFGTEKD1
I am changing a crank sensor on this truck and twisting after spraying with wd40 and letting it sit the top of the sensor broke and is still attached. Help how do I get it out? If it breaks all the way then what?
2005 GMC Savana 1500 4.3L No Start VIN: 1GTFG15X95
Towed in-no start.blown fuses for fuel pump and engine1.has been to 3 shops previously with the last shop sending box of fuses with driver.cannot duplicate problem.drove 20 miles with no misfires on monitors or felt while driving. Can not find anyth... Trouble codes: P0200
1994 Pontiac Bonneville SE 3.8L cluster lights VIN: 1G2HX52L5R
When i key the vehicle up and turn the running lights on the cluster lights flicker for about one min, then they will stop and act as normal. if i turn the lights off and try to make it act up again it wont, the car has to sit for arond five min off in order t...

Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP52L8R
what i've found is the power wire(terminal "n") going from the icm to the cmp n ckp sensors is shorted to ground i cut the wires at the icm, cmp n ckp and added a new wire to the icm the car starts and runs. the circuit must be a low amperage circuitcause i oh...
1996 Chevrolet K1500 5.7L Drl'S VIN: 2GCEK19R7T
Thanks for the replies. I got a diode from a local GM dealer. and that fixed it. It is to the right of the sterring column,about right above your right knee as you sit in the seat. Thanks again, Jerry
2000 Chevrolet Blazer LT 4.3L No Start VIN: 1GNDT13W0Y
A big thank you to everyone who responded! Most of you were were right on target with the stuck poppet valves in the injectors. We exposed the injectors and listened for a "click" as each one was activated with the Tech II. There was the click but no spray. ...
2007 GMC Sierra 1500 Classic SL 4.8L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1GTEC19V97
well all I went to the shop this morning, removed the valve cover and found cyl # 3 exhaust spring broken, I've driven a lot of GMS with high miles and never had a problem, crazy! this truck is still under drive train warranty , so to the dealer it goes. Thank... Trouble codes: P0300 (multiple misfire).
1989 Pontiac Firebird 5.0L No Start, MIL Lamp on VIN: 1G2FS21F7K
Many thanks for all the replies. I managed to flash a code for CTS(15) and found bad connections in the CTS, also the sump was full of oil mixed with fuel and spark plugs were very poor, changed oil and plugs and started first time. Many thanks again Andy ...
2003 Saturn Vue 2.2L Converter Lock-Up VIN: 5GZC43D53S
i beleive this nightmare is now over, drove it for the passed two days and no check engine light, the valve body fixed the problem, thank you all for your help and for future references, if you ever get a saturn vue with cvt transmission, just let it go beleiv...
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