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Prev Professional Automotive Repair Technical Discussions for November 19, 2014
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1989 Buick Century Custom 2.5L No Start, Poor Idle Quality, Stall VIN: 1G4AH51R7K
Please help this 2.5 tbi will stall at idle and starts hard. Replaced ecm with a reman a month ago and problem seemed to go away. But is back again same problem. Some times it will run ok for a week or two but most of the time it runs poorly. It seems to be lo...
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2007 Cadillac Escalade 6.2L starter VIN: 1GYFK63877
very intermittent no crank, scanned all modules found U0214-00 lost communication with remote function actuation in both BCM and ICP. no other codes stored. before I dive into this this thing I would like to get as much information as I can to diagnose it and ...
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2000 Pontiac Bonneville SLE 3.8L No Start, VIN: 1G2HY54K1Y
customer came in with complaint of vehicle intermittenly not starting and antitheft message in display. pulled codes and had b2734 and b1009. asked the customer if she had a second set of keys and advised her to use them and see if problem would happen again. ... Trouble codes: B2734, B1009
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2008 Pontiac Grand Prix 3.8L hvac VIN: 2G2WP55238
Car will blow on defrost only, she had a new GM mode actuator installed last month. I have tried a recalibration procedure on the doors to no avail, back probe at actuator motor and got around 8 volts with a slight fluctuation while motor/ door is popping. It ...
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Fixes & Summaries for GM
Fix/Summary Answers
1983 Chevrolet K30 Custom 6.2L Generator 1
Thank you to all that replied. This is a rural FD truck that technically is a "freebee" through the USDA & the MO dept. of conservation. They are going to attempt to turn it in for something else. I found three alternator nuts by the firewall upon further inqu...
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2000 Chevrolet Blazer LS 4.3L brake lamp, pedal. VIN: 1GNDT13W1Y
Done with this fine unit...customer thinks he can finish this himself because hes poor! made an adapter for my brake pressure guage (which for some reason only has bleeder port adapters?), had super pedal with guage installed at master port to rears, determine...
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2003 Chevrolet Suburban 1500 LS 5.3L Misfire, MIL Lamp on VIN: 3GNFK16Z23
Problem found. Removed both forward O2 sensors and noticed the Left side was much nosier than the right side. Totally plugged Left side cat. I was able to cut the cat off clean it out and weld it back in (personal car, saved me a few $). Catalyst was undamaged... Trouble codes: P0300 (Multiple cylinder misfire).
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2007 Chevrolet Silverado 1500 WT 5.3L fuse 47 VIN: 2GCEC13097
customer did not whant to speend any more time to diag.doesn't have a onstar subscription ,so we left the fuse 47 out.does not have a draw.
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1988 GMC K2500 Sierra SLE 5.7L Speedometer VIN: 2GTFK29K9J
Well we pulled the cluster out of the vehicle and inspected the pins and connector. Looked fine. Customer picked up truck, put on ov er 1000 miles so far and speedometer has not quit working once. I will keep all the awesome suggestions if he were to come back...
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2005 Pontiac Montana SV6 3.5L No Start VIN: 1GMDV03L55
Thank you to those that replied. To make this short and simple PCM was the problem replaced with GM Reman but to program I had to isolate all the class 2 data wires at SP205 and connect the obdII port to the module I was programing for each individual module....
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