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Prev Professional Automotive Repair Technical Discussions for December 11, 2010
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Open Help Requests for GM
Help Request Answers
1998 Chevrolet Blazer 4.3L abs VIN: 1GNDT13W5W
test drive at slow speed 5 to 10 mph the abs motor will run i have heard the motor on slow turns and at withe no brakes apliyed the rf hub &sensor have been replaced the lf sensor has been replaced .the air gap at the rf has come into spec the air gap at lf is...
2004 Chevrolet Impala 3.8L heater fan VIN: 2G1WH52K04
the heater fan speed changes up and down for no never stops completely.i tried an ign. switch and eliminated the command start to no avail.checked all wiring for hot spots and found none.has no stated this is not an auto temp. system.anyone ...
1992 GMC K1500 Sierra 5.7L Oil pressure VIN: 2GTEK19K3N
Seems like it's always the friends or family with the odd ones. My son bought a rebuilt long block for this truck from a rebuilder that advertised on the net. Good price, no core, no shipping. He got this about a year ago and it sat until recently when he and ...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Oldsmobile 98 Regency Elite 3.8L No Start VIN: 1G3CX52KIS
Wow!!! what a head spin... It turned out to be the 'crank sensor' that was preventing the car from starting! Apparantly on these vehicles, if you crank them over and they dont start even if it's a fuel pump issue, no matter what, the 'HOT AC DISABLED' is a bo... Trouble codes: P1406, P0740, P0112, P0101.
2001 Pontiac Bonneville SE 3.8L monitors VIN: 1G2HZ54181
Iam going to close this one as a fix. The tech who posted this left out some info so I will try and clear it up. The car belonged to a family member of a local parts store manager and they tried to fix it by throwing parts at it and re flashing the pcm for som...
2002 Pontiac Grand Prix GT 3.8L trans shifti VIN: 1G2WP52K32
As some of you said the wire harness at the A/C accumulater had some wires that were rubbed through. repaired wires and works ok now
2002 Saturn L200 2.2L Misfire VIN: 1G8JU54F32
The issue must be carbon buildup causing sticking rings in the misfiring cyl, possible compounded by the fact the engine sat head off. One post identified carbon sticking rings as a known issue in these engines. As suggested, we performed cyl leak down test d...
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