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Prev Professional Automotive Repair Technical Discussions for September 23, 2008
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Open Help Requests for GM
Help Request Answers
1994 Buick LeSabre Custom 3.8L No Start, Cuts out, Stall VIN: 1G4HP52LXR
This Buick has a very intermitent stall. Once it stalls it will somtimes start immediatly, and sometimes starts after 20 minutes. Vehicle was towed in, cranks, but didnt start. I scan for codes, none found. I hooked up a fuel gauge and have good consistent pre...
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1996 Cadillac DeVille 4.6L ride control VIN: 1G6KD52Y9T
customer says car rides rough . code rs0017 in memeory. what is 0017 for. I could not find code list in my manuals. car seems to be too firm and maybe a tad too high in rear. this has the computer controled valving in all 4 struts. left rear shows a little oil...
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1995 Chevrolet K1500 Cheyenne 4.3L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 1GCEK14Z3S
Greetings Techs, Have an intermittent brain burner here.This 4.3L TBI, HEI system truck will on occasion hunt idle and misfire at or around 2000 rpm. Does not matter if hot or cold. She will then idle and drive like new. I drove the vehicle for 45 minutes at o...
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2003 Chevrolet Trailblazer LS 4.2L transfercase VIN: 1GNDT13593
this is a elctronic shift transfer case. the problme is when you put in to 4 wheel drive the transfer case some times will go in and the front axle will grind like it is trying to lock in.. when u are under car front drive shaft will spin, but not the front di...
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2004 Chevrolet Trailblazer LS 4.2L compression/oil in cylinder VIN: 1GNDS13S64
This vehicle came in for a rough run. P0300. Customer replaced plugs with bosch platinums. I replaced plugs and it ran better but still missed. I current amped coils and #3 showed no current limit. So, I replaced the coil and it got better but still has a mis...
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1998 GMC Savana 2500 5.7L MIL Lamp on VIN: 1GTFG29R8W
hello and thanks for the help, this van sets a code 121 tps range failure, as stated above tps was replaced about 3 months ago along with a complete tune up, , now emission test is due and code 121 is back,so i replaced the sensor again and reset, i tested for... Trouble codes: P0121
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2002 Pontiac Grand Prix SE 3.1L Engin VIN: 1G2WK52J32
This vehicle had been losing coolant for a while, then starting running poorly. I first suspected a head gasket, but detected no pressure pulses or combustion gasses at the radiator neck. I also ran it briefly and it seemed smooth and powerful, so I thought ma...
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Fixes & Summaries for GM
Fix/Summary Answers
1987 Buick Regal GNX 3.8L Poor Idle Quality, Hesitation, Misfire VIN: 1G4GJ1172H
Was able to get some insight into this system and car and its operation, the car had a wire that had reub threw near coolant temp sensor going to camshaft sensor watching meter it would somtime drop off the screen , 6.5 to 7.0 volts at camsensor and down to z...
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1996 Chevrolet Cavalier 2.2L 2-3 shift VIN: 1G1JC1245T
I want to thank everyone who replied to this request. The customer on this vehicle decided not to spend much money, so I took John's advice, added a friction modifier to the fluid, got the valve to free up for now, and explained to the customer that it is a te...
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2005 Chevrolet Tahoe LS 5.3L instrument cluster VIN: 1GNEC13T95
the vehicle came in w/ a cluster that was replaced by the customer from a different vehicle. the new cluster was not the correct part number and had a compatibility issue with the vehicle programming. dealership looked up a different cluster and fixed the pr...
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1993 GMC K1500 Sierra SLE 5.7L No Start, MIL Lamp on VIN: 2GTEK19K5P
Well we went over the grounds, looked at the voltage going to the temp sensor and out of the sensor to ecm. Both were on the factory specs. Next we looked at the antifreeze, as far as what temp it was set for below, here was a red flag, it was set to 50 below... Trouble codes: 14 (temp signal shorted or low), 54 (fuel pump relay circuit).
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1999 Oldsmobile Intrigue GLS 3.5L Electronic VIN: 1G3WX52H7X
still havent fixed this car, most of the replies i got covered information that was included in my original post. 2 control heads and 3 actuators later, this car still behaves exactly as before. before coming to us, this vehicle had been to oldsmobile 4 time...
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1988 Pontiac Sunbird SE 2.0L Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy VIN: 1G2JD11K2J
Greetings: The replies ranged from: 1. Engine timing jumped a couple of teeth--timing was ok. 2. A copy of TSB #91-620-101 which revised the incorrect service manual fuel system diagnostic procedure. (Yes, virginia, there are constant bleed orifices in this ...
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2002 Pontiac Grand Am SE1 3.4L No Start VIN: 1G2NF52F82
ok sooo it turns out after alot of digging and talking to a different gm dealer that gm has finally decided that their reman bcms are JUNK! soo low and behold.. they switched back to the original part number and starting making the new ones again
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1993 Saturn SL1 1.9L lock cylinder VIN: 1G8ZH5594R
Thanks for the help. After I put on my reading glasses I was able to find the hole where you can release the lock cylinder. It was on top under a blue connector that is attached to the backside of the signal light switch. Once I disconnected the blue connector...
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