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Prev Professional Automotive Repair Technical Discussions for September 26, 2011
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1994 Cadillac Seville STS 4.6L No Start VIN: 1G6KY5294R
Hello. I've got a 1994 caddy sts 4.6 litre north star I am having trouble with. The car came in with a customer complaint of intermittant stalling,usually on decel coming toa stop. Scanned the car with our new Mac Navigator, it would not recognize, no communic... Trouble codes: 36 (linear egr pintle position out of range), 95 (engine stall detected)
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1991 Chevrolet Camaro Z28 5.0L Cuts out, Stall, no power VIN: 1G1FP23F2M
Trying to find cause of repeat fuel pump failures, pulled tank down and looked for any debris or loose baffles everything looks good. We are changing strainer and fuel filter everytime also. The low amps looks to me like something is clogging strainer, but its...
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1992 Chevrolet K3500 Silverado 7.4L Brakes VIN: 2GCHK39N4N
Put all new brakes on this in January, developed a pull to right on braking. Made it "better" by swapping front pads sided to side along with the tires. Took camping with 11' camper, experienced severe pulsation coming down mountain pass. Left front tire felt ...
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2000 Chevrolet Tahoe 5.3L blend door VIN: 1GNEK13T6Y
Vehicle blows hot air, but after driving for a while it goes to cold, it is a manual system... It hasen't acted up in the shop. We are thinking blend door issue, very common. Mitchell shows motor to be at lower section of heater box, yet dealership calls for a...
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2000 Chevrolet Silverado 1500 5.3L abs VIN: 2GCEC19T9Y
hello techs, I'm working on this truck, No codes stored. Activates abs pump when coming to a stop. Data shows rear wheels going 1 mph slower than the front. This truck is from chicago very rusty under it. Any help will be appreciated thanks.
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2006 Chevrolet Cobalt LS 2.2L bcm VIN: 1G1AL52F65
towed in to shop for no crank at the mall. Battery is new. Dash lights on when key is on, but all lights went off in start position.Starter cranks but no spark, no injection,when external battery hook to starter with remote starter button. Found no juice to st...
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2005 GMC Sierra 1500 4.3L No Start, Misfire VIN: 1GTEC14X05
hello and thanks in advance for any help. we have this high mileage truck in our shop and we thought we had fixed when we replaced the dist with good used one. the cam retard is allowed +/- 2 degrees we were unable to get 0 like we wanted but truck ran great a... Trouble codes: P0300 (multiple misfire)
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2003 Pontiac Vibe GT 1.8L No Start, Hesitation, Cuts out, Stall VIN: 5Y2SN64L83
I had the car towed in and will not stay running, checked for spar (its good), fuel pressure with in specified value and have code p1693 any one run into this before? Trouble codes: P1693 (Rocker arm actuator stuck off)
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2006 Pontiac Grand Prix 3.8L No Start VIN: 2G2WP55261
Car towed to shop, cranks but will not start. Long story short if you unplug the ignition module & plug it back in the car will start & run for aproimatly 2 weeks. At our recomendation the customer did agree to install a GM module & that did not help.
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2007 Saturn Vue 3.5L No Start VIN: 5GZCZ63417
This Saturn was towed into our shop with the customer requesting a new starter. I went out to the car, and it cranked over, but would not fire. I connected a Tech 2 to the car, and there was no communication with the PCM. I pulled listed codes, along with a fe... Trouble codes: U2105 (Lost Communication with PCM), U2106 (Lost Communication with TCM), U1016 (Lost Class 2 Communication with PCM)
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Fixes & Summaries for GM
Fix/Summary Answers
2004 Cadillac CTS 3.6L Programming New PCM VIN: 1G6DM57794
We were using the tech2 and a midtronix battery conditioner for programming. After quite a few replies we pulled all fuses and relays that would cause a load when we programmed the PCM and using the tech2 remote the programming failed again, so we tryed using ...
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2001 Chevrolet Camaro 3.8L OVERDRIVE 4th VIN: 2G1FP22K61
i need to thank to everyone that helped me with this problem,i'm stil working on this car,i removed the valve body,the separator plate and recheked every valve in the v.body,i did not find any problems whatsoever,my next step will be to remove the servo and ch...
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2002 Chevrolet Astro 4.3L does not turn off VIN: 1GCDM19X02
First of all... Thank you very much to all that replied. replaced ignition switch and body control module, reflashed bcm and problem went by, bye. The cause was a bad connection right at the ignition switch. Thanks!
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2008 Chevrolet Silverado 1500 LT 5.3L mode control and air temp VIN: 1GCEK14098
sorry it took me so long to close on this one but i keept geting pulled off of the truck to work on other stuff that they say is more important any way it ened up being out in the fuse panel in the engine compartment this thing was so interminted hard to pin d...
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