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Prev Professional Automotive Repair Technical Discussions for February 3, 2017
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2005 Buick LaCrosse CX 3.8L door locks VIN: 2G4WC56215
BCM was already replaced by the dealer. Customer states that the door locks will randomly cycle. She is worried that the car will unlock itself overnight. Only had vehicle act up once on me and of course I did not have the scanner hooked up to monitor inputs t...
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1989 Chevrolet G30 Sportvan 5.7L Mounting bracket VIN: 1GCGG35K5K
This is a contractors van, started as a Virginia State Police accident investigation van, everything is as heavy duty as possible. The accessory bracket (horseshoe) on the front breaks on the left side where it bends forward for the power steering pump. The la...
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2008 Chevrolet Silverado 1500 WT 5.3L engine wont shut off VIN: 3GCEK133X8
turn key off, everything shuts off except engine keeps running. I unplugged the ignition switch and it seems the ecm is still alive. with the ignition unplugged I can still communicate with the ecm. have to pull ecm fuse to shut off engine.
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1998 GMC K2500 Sierra SL 6.5L No Start VIN: 1GTGK29F0W
This truck can in last October with a hard start condition. Tested the plow plug circuit and found the glow plugs were bad. The controller at the time was ok. We replaced the glow plugs and everything worked fine. 3 months later it comes back in with a starter... Trouble codes: P0216, P0236
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2007 GMC Yukon SLT 5.3L Brake Switch VIN: 1GKFC13097
ok, i have a crazy one here. if the brakes are pressed the engine will shut off. if i remove the brake switch it will not. so i wanted to isolate the wire that is causing this and its the light blue with white stripe. i isolated that wire. but that wire is bri...
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2008 GMC Savana 3500 4.8L Starting VIN: 1GTHG35C98
Van came towed in with no crank signal , check for codes found anti-theft code key not detect it, install new anti-theft module & new key, i programmed the module with TIS software but i had a problem to re-learn the ket with tis software, I decided to re-lear...
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2014 GMC Sierra 1500 SLT 5.3L steering angle sensor VIN: 3GTU2VEC0E
I have this truck that was wrecked.it came a from a body shop. it has codes c0710-4b steering angle sensor not learned in abs. c0544 and u0428 in electric power steering module. I perform steering angle sensor learning and it says it is performed but code is s...
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2008 Pontiac Grand Prix 3.8L Stall, MIL Lamp on, Erratic Tachometer VIN: 2G2WP55288
Vehicle will randomly stall and immediately restart and run. Engine then runs rough with lean condition and associated misfires. After 3-4 minutes it will run normally. This may occur 5-10 times on owners 20 mile commute to work. At times, upon restart the tac... Trouble codes: P0016 (ECT --Sensor Performance---MIL requested), P0496 (Evap System-- System flow during non-purge), P1819 (Internal Mode Switch-- no start-wrong range), P0741 (TCC System--Stuck Off), P0171 (Fuel System Lean), P0106 (Map Sensor Performance)
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Fixes & Summaries for GM
Fix/Summary Answers
1992 Cadillac Seville 4.9L Accessories VIN: 1G6KS53B2N
CUSTOMER DID NOT WANT TO PUT THE MONEY INTO FINDING THE PROBLEM AS CAR WAS NOT IN GOOD CONDITION AND WASNT WORTH IT.
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2011 Cadillac CTS Luxury 3.0L Transfer Case VIN: 1G6DL5EY0B
Thank you for the replies. The resistor is in the rear of the transfer case where the rear driveshaft connects. It is sort of hard to access since the exhaust is blocking the way. On this car the resistor was open and as soon the new one was installed and...
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2011 Chevrolet Cruze LT 1.4L Defrost door VIN: 1G1PE5S97B
Thanks very much guys for the help. I did everything suggested and still no fix. It actually was a broken upper cam lever. Service manual suggests complete dash removal but with removing brake/accelerator pedals and all surrounding stuff like attached air duct...
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2012 Chevrolet Malibu LT 2.4L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1G1ZC5E07C
THANKS FOR ALL THE HELP. CLEANED THE THRODLE BODY RELEARNED THE IDLE.THIS WORK FOR ABOUT A WEEK. THEN INTERMITTENTLY THE PROBLEM REOCURRED. INSPECTED THE EXHAUST MANIFOLD FOR CRACKS AND LEAKS CHECKED MY BACK PRESURE ALL WAS WITHIN SPECS. INSTALLED 3RD MAP SENS... Trouble codes: P0106 (map / baro sensor circuit out of range), P0171 (Fuel trim system lean bank 1), P2431 (2nd air system presure sensor performance).
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