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Prev Professional Automotive Repair Technical Discussions for June 10, 2004
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Open Help Requests for GM
Help Request Answers
1993 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP53L3P
This car was brought to me as a no start the customer already changed the module and crank sensor mind you. i checked for fuel and spark have fuel presure but no spark i checked injector pulse no pulse well so i thought when i go to crank the key to start no ...
1997 Buick Park Avenue Ultra 3.8L Supercharger idle pulley VIN: 1G4CU5211V
Help GM techs-I'm trying to replace lower supercharger idle pulley and can't figure how to get front engine mount out of the way. I thought the frame mounted half would slide out of the way to remove engine mounted bracket but it is recessed in frame. I remove...
1998 Cadillac DeVille 4.6L Stall VIN: 1G6KD54Y4W
This car dies at idle or when coming up to a stop. So far it has not died with your foot on the gas. It dies quickly like you turned the key off. It always starts up very quickly as soon as you turn the key to start again. It runs great with no other problems....
1996 Chevrolet Beretta 3.1L Misfire, MIL Lamp on VIN: 1G1LV15M9T
had high missfire count on 4&5 ie; (145k). check all perim. and short term and long term trying to compinsate, long term @8. propane test revield intake leak and repaired. runs much better but still have slight miss @idle on #5 with mill coming on after 75 mil... Trouble codes: P0300
1997 Chevrolet K3500 6.5L ecm-b fuse VIN: 1GTHK34F0V
Hi, this problem child is blowing the ECM-B fuse in the underhood load center. Problem could not be duplicated so I checked the amp draw on the original pump and all was ok but since it was an intermittent problem I suspected a bad lift pump. After buying tne ...
2000 GMC Yukon XL 1500 SLE 5.3L Cylinder head VIN: 3GKFK16T4Y
I have a customer that has recently bought this used Yukon with a 5.3L engine. It has a cracked head leaking coolant. I don't have any experience with these new generation engines. Is it like replacing a head on say a 98 5.7L or do you need trick tools for tig...
1963 Oldsmobile supper 88 wa 260CID rear window VIN: 635C016605
i would like to know if anyone has or knows where i can get a wiring schmatic for the rear window on this 1963 olds wagon.
1992 Oldsmobile 88 Royale 3.8L engine
I was wondering if anyone has run into this or similar symptoms any help is greatly appreciated thank you in advance.
1996 Oldsmobile Cutlass Ciera 3.1L airbag controller VIN: 1G3AJ55M9T
i am refitting this car with a new air bag and controller after a minor collision i can't find in my books the location of the controller.. any help would be greatly appreciated.
1998 Oldsmobile 88 Royale 3.8L MIL Lamp on, RUNNING LEAN VIN: 1G3HN52K5W
fuel trim showing lean condition at idle, corrects it self with higher rpm, found 2 vaccum leaks that have been repaired problem still exists, Trouble codes: P0171
2001 Oldsmobile Silhouette Premiere 3.4L Poor Idle Quality, High Idle VIN: 1GHDX23E61
Vehicle will exhibit a high idle after driving for a few miles. Have checked for vacuum leaks, none detected, replaced IAC, scanned computer readings with Snap On scanner. IAC counts stay at about 80. No problems with EGR have been detected. EGR% is 0 when pro...
1993 Pontiac Grand Am SE 3.3L No Start, Poor Idle Quality, Cuts out, Stall VIN: 1G2NE54N6P
Gentlemen ,most of the info that I get is 2nd/3rd hand. This bundle of joy was brought to another mechanic who did more guessing and little real trouble-shotting...basically its a intermittent poor idle with stalling, and a hard restart afterwards. A new fuel ...

Fixes & Summaries for GM
Fix/Summary Answers
1990 Buick Regal 3.8L Cuts out VIN: 2G4WB55L7R
Customer has had this problem for one year, and does not want to spend any money on it she will be trading in this year..
1993 Chevrolet S10 4.3L Surge, Cuts out, Stall VIN: 1GCCS14Z1P
this vehicle had a wiring harness problem at the heatshield behind the right side cylinder head. It seems that the heatshield chafed the wiring after 186000 miles of usage and was causing an intermittant short to ground on the est wire.After troubleshooting fo...
1995 Chevrolet Camaro 3.4L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 2G1FPZ2S60
thanks to all who replied we ended up finding that it would miss as soon as you pressed in on clutch - found another similar bulletin - checked and found about .105 play in crankshaft apparently enough to case signal problem with crank sensor - when pressed in...
1996 Chevrolet Express 2500 5.0L MIL Lamp on VIN: 1GCFG25M3T
ok guys i'm gonna close this post only becuase the van is gone and i still don't have any answers.As many suggested i checked and rechecked timing gear slack looked for slack at cam gear could find nothing.replaced distributor and that seem to get the cam reta... Trouble codes: P345.
1999 Chevrolet Corvette 5.7L tire pressure monitor VIN: 1G1YY32G7X
I guess there is no way around this. Thank you for the info. Customer will take car and deal with it.
2000 Chevrolet Suburban 1500 LT 5.3L No Start VIN: 3GNFK16T7Y
Well, it turned out that the fuel pump sending unit was my problem. On my original post, I thought I had checked all the fuses, but later found the ECM-B fuse was blown. I replaced the fuse, truck started and ran fine. But several hours later, the fuse blew ag...
2002 Chevrolet Trailblazer LS 4.2L No Start VIN: 1GNDT13552
Finally got it going.I had tryed disconnecting battery several times with no sucess so I took both posts and connected them together and turned key on.This solved its communication problem somehow.Then after it was running it still had 1 code for tcc connectio... Trouble codes: P0740 (CC Clutch problem), P0753 (Shift a prob.), P0758 (Shft b prob), P0785 (p1860-), P1860, U1000 (Communication problem between modules).
2003 Chevrolet Silverado 2500 HD 6.6L Hesitation, Cuts out, Stall, CHUGGLE VIN: 1GBHC241X3
First I would like to thank Jeffery(Tony)Pugh,Bill [...],Sam(SLC),Curtis,and Tony and Jackie for their supportive information. The fix was the FICM. As the truck would warm up and the fuel temp increased a small crack was evident in the FICM. With a fuel pr...
1998 Oldsmobile Regency 3.8L Mechanical VIN: 1G3HC52KSW
Thanks everyone for your input, several techs said too install new gasket & add silicone to both sides of the gasket, I did just that & sealed all the bolts!!! Still leaked! Two different techs emailed me later & said the plate on the rear of the engine where ...
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