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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 7, 2012
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Open Help Requests for GM
Help Request Answers
1999 Chevrolet Lumina 3.1L Starting VIN: 2G1WL52M2X
Ok, I go to customers house because her car wont start. She told me it has not ran for 3 months. First the battery is completly dead (Had like .265v). So I just put in a new one. Then try to start and get nothing, no crank, no click, but the headlights are bli...
2004 Chevrolet Colorado LS 2.8L Cuts out VIN: 1GCCS13814
Just a quick question. This truck dies out and displays "reduced power" on the cluster. Set a code p0601a for internal rom failure on the pcm. Customer does not want to spend the $$$ on a new pcm since this is an old beater of a truck with 280k plus on the clo... Trouble codes: P0601
2001 Oldsmobile Silhouette Premiere 3.4L Cooling Fan VIN: 1GHDX23E31
Hi; all tech. This van came in with blown head gasket. We did complete head job , now we are back to first base and cause of over heating and blown head gasket! all new temp. Sensor ,fan relays , but the fan work on low speed most of the times. We checked all...

Fixes & Summaries for GM
Fix/Summary Answers
1996 Chevrolet K1500 5.7L pedal height
thanks for all the replies.most useful was to adjust the rears tighter than normal.will not buy a pressure bleeder for this system, no evidence that it would help.thanks again, very useful and resourceful to have this many educated opinions in one place.
2004 Chevrolet Colorado LS 3.5L No Start VIN: 1GCDT13664
THANKS FOR ALL THE HELPFUL REPLIES FROM EVERYONE. TURNED OUT THAT GARY FROM FLORIDA HIT THE NAIL ON THE HEAD. UNDERNEATH FUSE BLOCK THERE WERE TWO CONNECTORS NOT SEATED FULLY. I WIGGLE TESTED WHILE SOMEONE WAS TRYING TO START VEHICLE AND VEHICLE WOULD NOT STAR... Trouble codes: C00, 899 (Device voltage low), U1026 (Description unavailable), U1064 (Lost communication with bcm/driver info center), B0005 (In park switch [...] voltage malfunction), B2960 (Security system sensor data incorrect but valid), B0528.
2005 Chevrolet Corvette 6.0L Blower motor VIN: 1G1YY34U25
I decided to Diag Code b0248(airflow 3 control)first since I could not figure out the blower problem . What I found was a Broken HVAC Mode Vavle(door). The "door" is actually made from fabric [[...]] . After repairing the mode actuator , the blower operate...
2008 Chevrolet Silverado 2500 HD LTZ 6.6L Poor Fuel Economy
Ended up rerouting pcv valves into a bypass tube, spitting out oil from bypass tube. Suspect damaged rings or cracked piston, will pull engine next week, and see whats up. Appreciate all the replies Thank You
2002 Pontiac Aztek 3.4L awd VIN: 3G7DB03E52
It's fixed with new actuator in rear end. Special thanks to Eric from Maine as the test light in the circuit between voltage feed and pcm circuit turned the light off. I also ohmed or attempted to ohm new actuator for future reference it read out of limits so ...
2005 Pontiac Vibe 1.8L Dash and firewall area VIN: 5Y2SL63845
Thanks for the responses. The customer has apparently decided not to pursue the problem at this time, since he has not brought the car back. If he does, I will repost.
2006 Saturn Vue 2.2L Loss of drive VIN: 5GZCZ33D26
Special thanks to Michael from Penn., Ron from Indiana, and Joe from Delaware. You guys nailed it. I pulled down the pan and found the feed tube for the for the forward clutch completely severed at the soldered flange. New one from dealer was about 60 bucks. N...
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