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Prev Professional Automotive Repair Technical Discussions for November 28, 2008
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Open Help Requests for GM
Help Request Answers
1997 Cadillac Eldorado 4.6L abs and trac VIN: 1G6EL12Y7V
I have 2 codes that trigger at 30 mph. c1232 and c1233 have done all the testing I know of and seem to always get the same codes. Computer is seeing wheel speed and is correct. I have just replaced the engine and Had no codes before this. Other than disconnec...
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2001 Cadillac DeVille 4.6L interior fuse VIN: 1G6KD57Y81
blows interior fuse. split system up in two parts at the spice packs with separate fuses. lf side fuse blows intermitedly. found that the feed for overhead lamps would ground out at times. the system spiders out and has diff. connection points. not sure how it...
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1994 Chevrolet C3500 Cheyenne 6.5L Stall VIN: 1GBKC34FXR
Problem child stalls.No codes found current or historical.Scan data looks normal accept temp higher than what it really is about 100 degrees,I know this is not normal but i do not know why,Sensor replace with same readings.This truck will stall and restart som...
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1996 Chevrolet S10 2.2L Hesitation, Surge, Stall, Misfire VIN: 1GCCS1445T
This vehicle will surge, backfire and will not accelerate above 3600 rpm. At times it will surge and stall in gear at idle. Can find No codes. Fuel trims are rich. Has had : Crank sensor, ignition module & Coils, idle speed motor, map,PCV, Plugs, Wires, By cus...
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2001 Chevrolet Suburban 1500 5.3L bcm VIN: 3GNEC16T41
hello. GM techs I have a problem with this suburban, BCM it is not responding I have checked the 3 powers the 2 grounds and the rest of the circuit I have tried 2 new from the dealer plus the one the custumerhad,but the BCM is not activating the relays for int...
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2001 Chevrolet Suburban 2500 8.1L fuel gauge VIN: 3GNGK26G61
checked all connections on tank, pcm and cluster, monitor info with scanner as you drive. reading fuel level values and level with m2500 scanner. voltage level stays at 2.43 and liters stay at 106 with gauge reading in appropriate range on gauge. while driving...
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2003 Chevrolet Silverado 2500 HD 6.6L shift inhibit light VIN: 1GCHC29173
this truck runs fine but when the shift inhibit message comes on the truck wont move from nuetral. it is intermittent. doesnt matter if it is hot or cold.
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2004 Chevrolet Trailblazer LS 4.2L Unknown VIN: 1GNDS13S54
Thank you all for your help and information, this one has us puzzled and any advice or help will be appreciated. This vehicle comes to us from a large used car lot that we are their repair facility. The customerís complaint is a rattle vibration noise when acc...
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2000 GMC Savana 2500 5.0L evap, O2 heater VIN: 1GTFG25M2Y
Am I missing a specific drive cycle procedure for this truck, or are the monitors just this hard to set on this vehicle?? Any help would be appreciated so I can get this truck to pass the state emissions test for this customer. Thanks in advance!
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2000 Oldsmobile Bravada 4.3L Electronic VIN: 1GHDT13W7Y
This truck came in for no heat. I confirmed the condition found the temperature blend door motor was not moving properly. I replaced motor, ran the reset process of pulling a fuse for 10 seconds. My issue is now that on full hot system has great heat, however ...
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Fixes & Summaries for GM
Fix/Summary Answers
2004 Cadillac CTS 3.2L no engagements in forward VIN: 1G6DM57794
we rebuilt this transmission and the first thing we did was to go in a test drive. We found smooht up-shifts but hard downshifts. After doing some research we found that the transmissions adaptives had to be relearned. We perform the relearn procedure using ou...
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1996 Chevrolet Blazer 4.3L Misfire VIN: 1GNDT13W6T
first let me thank everyone that replied. alot of replies suggested checking the cam retard. this set-up has a fixed distributer, no adj. one tooth out and you get a code. to make a long story short i ended up replacing the fuel pump and the miss almost went ... Trouble codes: P0300 (random misfire).
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1997 Chevrolet C1500 Cheyenne 5.7L brake pedal VIN: 2GCEC19R8V
WHEN THE VEHICLE FIRST CAME IN WE DID A COMPLETE BRAKE INSPECTION LOOKING FOR UNUSAL WEAR OR LEAKS. THE ONLY THING THAT SHOWED UP WAS THE LEAKING MASTER CYLINDER. AFTER REPLACING IT AND DOING A BRAKE FLUSH, WE DISCOVERED A BAD POWER BOOSTER. ONCE REPLACED A...
17
2001 Chevrolet Venture LS 3.4L interior lights VIN: 1GNDX13E11
I was able to narrow the problem down to the headlamp switch as everybody said. I am guessing the switch corroded inside due to not using it bacause of the auto lamps. I want to thank everyone for you inputs in giving me a starting point. Sometime we know s...
3
1995 Oldsmobile 88 Royale LS 3.8L cruise control VIN: 1G3HY52KXS
we have not fixed this vehicle,everything tests perfect,intermittently it will set a code and render system inoperative,after exhausting many hours with no luck,the customer needed his car back for awhile and will see if a patern develops .
3
2002 Oldsmobile Bravada 4.2L vss VIN: IGHDT3SX22
Good news,the second Pcm (used) due to costs (fixed) that nasty P0502,special thanks to Randy from PA for hitting it right on the head. Further testing of the Pcm for Vss outputs proved that the used computer was a dud. In a perfect world we would only insta...
3
1997 Pontiac Sunfire GT 2.4L Park Brake VIN: 3G2JD12T8V
This Sunfire park brake is finally fixed. Initially we replaced the front cable - was sticky and there is a TSB to replace with an updated cable - did not help. Next we replaced the Raybestos front cable with an AC Delco cable, same problem. Next we replace...
4
2007 Pontiac Grand Prix 3.8L low beams VIN: 2G2WP55227
Thanks very much to everyone who replied.All had good suggetions.Alex from Georgia gets a gold star. We replaced the underhood fuse block three weeks ago,talked with the customer about a week ago and they still had no problems. We dismantled the original fuse ...
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