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Prev Professional Automotive Repair Technical Discussions for March 10, 2011
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Open Help Requests for GM
Help Request Answers
1998 Buick Century Limited 3.1L egr tube VIN: 2G4WY52M9W
Car comes in with a coolant leak complaint: lower intakes. I pull into shop and have codes P0401, P0300, and P0125. Under code history customer I see where customer has been driving this car for 6,120 miles since P0300 first set. I test drove with scanner and ...
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2005 Buick Century Custom 3.1L Excessive Emissions, Stall VIN: 2G4WS52J75
I have an intermittent stall at idle that I've been chasing for two weeks. I suspect it's been doing this for a lot longer as it's been getting prgressively worse. Using the snapshot function on the Tech2 I can capture the stall and sometimes a bad stumble w/o...
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1998 Chevrolet C1500 Silverado 5.7L Cuts out, Stall VIN: 2GCEC19R7V
Hi Smart techs, this vehicle came in for no power. Checked it in bay If you floor the padal it wil not go more than 3000 rpm. and trying to rev up and goes back again. if you go slow it engine rev upto 4000 rpm and then start surging, chugling,and then dies. ...
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1999 Chevrolet Cavalier 2.2L hyd system VIN: 1G1JC1240X
same as above
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2005 Chevrolet Cobalt 2.2L MIL Lamp on VIN: 1G1AK52F85
Hello:This may be a fairly long post but want to give as much information as i can.This vehicle came in with no electric assist steering and trans shifting poorly and also would try to die at stop signs.When i went to drive it the steering was not working but ... Trouble codes: U0101, U2107, P0742, U2100, U2105, U2107
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2005 Chevrolet Express 1500 4.3L Hesitation, Surge, Cuts out, Stall VIN: 1GCFG15X45
Van intermittily cuts okay and dies out and has no power.Found coil arcing out on side replaced and coil wire arcing at times under load.Hook fuel gauge and is good.Seems van has to be driven for sometime to get problem to happen.When first came in had po341 c... Trouble codes: P0341, P0335
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2007 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AK15F97
This customer bought this vehicle about 6 months ago. Well when the weather turned cold her check engine light came on and the gas milage got bad and the car started running bad. I checked it out and found the car had been in an accident. They put the wrong ai... Trouble codes: P2440 (Secondary Air Injection System Switching Valve Stuck Open Bank1), P0446 (Evaporative Emmission Control System Vent Control Circuit)
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1992 Geo Tracker 1.6L starting VIN: 2CNBE18U0N
man this thing is crazy when it first got towed in to shop i started it it started ran fine then after i cut it off it hasnt started since , compression fuel pressure timing checks ok i change dis with a new one and still same any ideas out there
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1999 GMC Safari SL 4.3L odometer VIN: 1GTDM19W2X
hi guys, im working with a new tool here, the tacho universal mileage corrector. im actually practicing on my van here to see how this machine works. unfortunalty im new to this so im not sure where to start. the machine says i have to clip into eeprom 95020 ...
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2005 GMC Sierra 1500 SLE 5.3L Accessories VIN: 2GCEK19T05
hey tech's,this is my personal truck and am wondering if this happened to anyone before.i was resetting the trip/fuel mileage meter the last fillup,when noticing that the hour meter read 8.1 hours.last time i checked it ,it read 2045 hours.i.ve owned it since ...
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2007 GMC Yukon Denali 6.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKFK63847
What up guys? I got a Denali that very intermittenty the desired cam angle and actual won't match. I drove it home last night and once the desired was 15〫and actual was 0〫and ran fine. I drove it home today and after a 20 mile drive pulled off th... Trouble codes: P0011, P0300
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2001 Pontiac Grand Am SE 2.4L monitors not running VIN: 1G2NF52T11
Hello Techs, I have replaced front O2 sensor and cleared computer - have driven several times at 55-60mph for over 5 min each time. The cat and evap monitors still have not run. I am waiting on one of these to run for insp. Is there any thing I can do diff to ...
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2008 Saturn Vue XE 3.5L master cylinder VIN: 3GSDL43N78
hello everyone,i need your help on this unit.this suv was towed to our shop from the dealer reason being customer cannot afford what the dealer wants to charge her..the problem is the brake pedal goes down almost to the floor,there is pressure from the bottom ...
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Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick Skylark Custom 2.3L No Start, Cuts out, Stall VIN: 1G4NV15D6S
this symptom happened once more since the post, again it started right up when i got there. checked fuel pressure=a little low @ 32psi. Replaced the fuel filter. Car has not cut out since, not sure if it's fixed or not yet. Sorry I wish I could give you guys a... Trouble codes: N0NE.
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1998 Cadillac DeVille d'Elegance 4.6L Accessories VIN: 1G6KE54Y9W
I would like to thank everyone for your replys.Well I ended up finding that I indeed had a 12 volt short to my data wires cause no comm and complete shutdowm of all modules on this circut.Short was coming from the radio/phone module circut in a 3 pin connector...
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2006 Cadillac DTS 4.6L starter VIN: 1G6KD57Y16
This marvel of American engineering is back on the road. Thanks to the 6 fine techs who lent their expertise to help me find the problem. Tristan from British Colombia advised to check grounds to ECM. All fine. Also all grounds to BCM,TCM,ABS,Etc. Travis from ...
7
1972 Chevrolet Monte Carlo 5.7L tach VIN: 1H57H2R599
thanks to all that read and understood i wanted to use my factory tach and gm hei that i stated. i did order a filter off ebay as the atermarket people ya'll told me about said they did not recomend their filter as it was for their tachs. i am getting one for ...
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1993 Chevrolet Lumina Euro 3.1L Cuts out, Stall, Misfire VIN: 2G1WP14X0M
Thanks for all the advise. As I stated all injectors passed resistance test/ wiring was all good and module had been replaced. Feeling like it still had somthing to do with injectors we ran Motorvac inj cleaning machine on car for an hour. Miss is all but gon...
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1999 Chevrolet K1500 LS 5.0L MIL Lamp on VIN: 2GCEG19W5X
Thanks for your help offers, given the small amout of info you had to work with. Vehicle is repaired. It took a new fuel pump. Thanks, again. Trouble codes: 171 (Lt fuel trim), 174, 1T, FUE1, TR1M.
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2000 Chevrolet Suburban 1500 LS 5.3L No Communication VIN: 3GNEC16T4Y
Thanks for everyones help... The fuses were check, and was able to talk to the computer. The otc, tech 2, modis, and a little code reader, I also was able to up date this truck with a laptop using the tech to as a PassThru. and up dated this truck. Still now l...
8
2001 Chevrolet Blazer LS 4.3L No Start VIN: 1GNDT13W11
this monster is fixed!!! problem was faulty pcm. as stated earlier i had b+ on pnk wire ,b+ coming from ign coil to ign module on the tach wire [i e] the wht/blk wire , good ground on the blk/wht wire and nooo timing signal from pcm to ign control module on th...
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2002 Chevrolet Malibu 3.1L Hesitation, Misfire VIN: 1G1NE52J32
We figured out the problem thanks to everyone here who replied. With your help we went back and scoped the ignition system while driving and narrowed down the problem. 1st we discovered we could get the car to misfire, with very light load (old lady driving) a...
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2004 Chevrolet C5500 Kodiak C5U042 6.6L engine VIN: 1GBE5C3225
Well, this one is still kicking our butt. Customer just wants to get rid of truck asap, been a problem child since day one. The knock is still there despite a new injector in # 3 hole, swapping that injector with # 5 results in same problem, same hole. Drop...
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2005 Chevrolet Cobalt LT 2.2L Misfire VIN: 1G1AZ54F95
THANKS FOR EVERYONES TIME AND REPLYS. CHECKED ALL GROUNDS GOOD. REPLACED COIL AND MODULE THIS TIME WITH FACTORY PARTS. BEEN ONE WEEK SO FAR SO GOOD. CRAZY AFTER MARKET PARTS. I SENT A REQUEST IN TO BWD TO SEE IF THIS IS A PROBLEM THEY HAVE BEEN SEEING HOPE THE... Trouble codes: P0171 (Lean codition), P0300 (Random mis-fire), P2119 (Throttle closed position performance).
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2008 Chevrolet Silverado 2500 HD LT 6.0L steering VIN: 1GCHC24K58
almost all replies said to check caster/camber eccentrics. tightened all- none were loose enough to cause concern but retorqued and customer has not returned. also several techs asked about ball joints-we had checked and rechecked front and rear suspension (ba...
16
2002 Oldsmobile Alero GX 2.2L rt.front wheel VIN: 1G3NL52F92
i found wire break where control arm meets transaxle
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2007 Pontiac Montana SV6 3.9L Battery VIN: 1GMDV03157
I want to thank everyone who replied to our problem. All avenues were checked as per replies and in the end we ended up finally getting a new Body Control Module and it remedied the problem. Thank you again fo all your help.
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2002 Saturn SL2 1.9L Hesitation, Surge, Cuts out VIN: 1G8ZJ52782
Ernest was right as much as I hate to admit it. Like an idiot I trusted the dealer to install plug wires correctly. Didnt even think to check it before. Swapped #1 & #4 plug wire and problem fixed. Thanks.
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