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Prev Professional Automotive Repair Technical Discussions for December 29, 2011
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Open Help Requests for GM
Help Request Answers
1994 Chevrolet K1500 Cheyenne 5.7L Stall VIN: 1GCEK14KXR
We have this truck towed to our shop with a no start.on a truck with this age any thing goes.With tests beyond tests we replaced fuel pump,ign coil,fuel filter distributor,map sensor ,tps switch,fuel pump relay,tried a ecm from a running truck,We have checked ...
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2002 Chevrolet S10 4.3L Surge, Misfire, MIL Lamp on VIN: 1GCCT19W12
I have one of those vehicle that just won't go away! This S-10 has a misfire that only happens at highway speeds, under a load after the trans shifts into OD. One scan tool is pulling a P0300B and another tool is pulling a P0303. Misfire data shows that the ... Trouble codes: P300, P0303 (Cyl 3 misfire)
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2004 Chevrolet Colorado LS 3.5L No Start VIN: 1GCDT13664
This problem occurs very intermittently, but seems more frequent in the last couple of weeks. When it decides not to start, it usually occurs after a drive cycle. Customer never experianced any drivability concerns other than no start when problem does occur.i... Trouble codes: C00, 899 (Device voltage low), U1026 (Description unavailable), U1064 (Lost communication with bcm/driver info center), B0005 (In park switch circuitb1420device voltage malfunction), B2960 (Security system sensor data incorrect but valid), B0528
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2005 Chevrolet Suburban 1500 5.3L No Start, long crank cold VIN: 1GCEK14X65
Truck has a long crank time after it sits over night it also seems to be the colder it gets the longer the crank time.When this thing does fire it has alot of black smoke and shows misfires on random cylinders senors readings apear to have accurate input but t...
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2006 Chevrolet Trailblazer SS 6.0L right front wheel VIN: 1GNET13H86
I have an 06 trailblazer with a service tire moniter message. Originally diagnosed as a faulty right front sensor. Replaced sensor preformed relearn procedure and sent home. Customer called next day said message was back. Sure enough RF indicated two dashes. R...
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2008 Chevrolet HHR LT Panel 2.2L steering effort VIN: 3GCCA05D28
The steering effort is not equal left and right while sitting still or driving. The wheel is off center and the vehicle pulls, we have not had the alignment done yet. I would like to do a steering angle sensor calibration but that comes up under ABS, this car ...
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2009 Chevrolet Silverado 3500 HD LT 6.6L MIL Lamp on, Delayed turn off VIN: 1GBJC84689
This truck has a delayed turn off, you can take the keys out of ignition and it will keep running for at least 15 seconds. Mitchell doesn't give good diagnostics and if i un plug bcm truck dies. Replace bcm and still has same problem.if the tech 2 is pluged in... Trouble codes: B1440 (Ignition mismatch)
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2011 GMC Sierra 1500 SLE 5.3L Lighting VIN: 3GTP2VE38B
Does anybody know where to wire in the third brake light for a truck cap . Is there anything to the rear of the truck. thanks for your help.
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2006 Pontiac G6 2.4L MIL Lamp on VIN: 1G2ZF55B76
Road test, runs fine. Code p0420-CAT inefficient. Watch data stream and find that cat monitor lazily hangs out around 0.8v regardless of engine speed, load, added fuel. Occasionaly the V will drop to low around 0.2. I know what a cat mon should look like after... Trouble codes: P0420
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Fixes & Summaries for GM
Fix/Summary Answers
1999 Buick Park Avenue Ultra 3.8L Stall, loses power, stall, VIN: 1G4CU5219X
well, I chose to ignore the input I got. after many hours contemplating while in the 'library', remembered the problems the general had with crank sensors back in early 90's, and changed it. been running fine ever since. Trouble codes: P0300.
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2002 Chevrolet Silverado 2500 6.0L Poor Idle Quality VIN: 1GCHK29U82
intake gaskets seemed to sound right. I checked the misfire counters and several cylinders showed small misses. After some arm twisting and the customer looking on the internet he agreed to allow me to change the gaskets. It was about 40 this morning when I...
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2003 Chevrolet Silverado 1500 4.8L Misfire, MIL Lamp on VIN: 1GCEK19V13
hi all, first i want to thank all who responded. second i need to apologize because my info was wrong. the truck is an 05 not an 03. that will clear up the filter questions. i pulled out the wrong file when i got the vin and info. got some good ideas and sugg... Trouble codes: P0300.
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2001 GMC Savana 2500 5.7L Starting VIN: 1GTGG25R51
well this one is out the door . it turned out to be chaffed wires in the harness at the transmission dip stick . what a job very tight spot . after i repaired the wires and re taped wireing harness i wraped part of a old inner tube around harness and cable tie...
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2002 Saturn Vue 3.0L Compressor Clutch Signal VIN: 5G2C263B12
THANKS AGAIN GUYS. IT WAS THE BLOWER RESISTOR. IT APPEARS THE SHOP REPLACED IT BEFORE IT GOT TO ME BUT I THINK THE DAMAGED WIRING MAY HAVE DAMAGED THE RESISTOR THEY INSTALLED. A NEW DELCO RESISTOR AN ALL SPEEDS WORK AND HAVE COMPRESSOR SIGNAL AGAIN. THE BCM...
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