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Prev Professional Automotive Repair Technical Discussions for August 27, 2007
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Open Help Requests for GM
Help Request Answers
1994 Buick LeSabre Custom 3.8L blower motor VIN: 1G4HP52L6R
i have a problem with an inoperarive blower motor. i have replaced the fan switch the relays and tested the fuses and for power at the switch the blower motor the resistor all of which have no power. has anyone run into a similar problem
1997 Buick Skylark Limited 2.4L MIL Lamp on, FIXED O2 VOLTAGE VIN: 1G4NJ52T4V
Vehicle came to us with code p0134a, did replace o2 sensor under warranty. Still did same this, code fixed at .450 volts. I unplugged o2 and ran to ground still stayed fixed. Customer complained about fans staying on, This is when I suspected pcm problem. Scan... Trouble codes: P0134
2002 Cadillac Escalade 6.0L ride control VIN: N02R102482
02 Escalade that rides like a dump truck, shocks dont even seem to work. Can anyone explain how the front shocks work, there is a 2 wire clamp on connector that goes on top and I just dont understand what it does to the shock, it has to be doing something that...
1993 Chevrolet S10 2.8L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCCS14R4P
Pickup is blowing black smoke out tailpipe. Had a code 45 set for rich exhaust. Checked and replaced sensor. Checked for vacuum leaks, replaced TBI gasket. Vehicle has a low idle and IAC counts read zero. Checked timing, set at 10 degrees. Replaced ECM did not... Trouble codes: 45 (o2 rich)
1995 Chevrolet K2500 6.5L No Start, Cuts out, Stall VIN: 1GCGK29F3S
Hi folks; I have here a mystery truck that will stall either while driving or at idle at any given time. It may run for two weeks without a glitch or sometimes will act up two to three times day. Fuel pressure & volume has been checked on supply line to inject...
1999 Chevrolet Silverado 2500 6.0L drive line VIN: 1GCGK29U8X
I have a 1999 silverado with a 6.0L and a 4l80E trans ans a 246 transfer case. It has a driveline vibration between 55 and 70 mph. This vibration is there on the throttle, off the throttle, in neutral, 2wd, 4wd. The only way I can prevent the vibration is to p...
2003 Chevrolet Venture LS 3.4L No Start, Stall VIN: 1GNDX03E13
No crank..welcome back. I just came back from vacation to this POS.This van was just bought by a very good customer. She owned it one week and called with a stall with a no crank. I was still in the joyful bliss of vacation at this point. The other tech spent ...
2004 Chevrolet Trailblazer EXT LS 5.3L high beams VIN: 1GNES16P54
when i turn on high beams all lights go out and do not come back on for some time
1997 Oldsmobile Achieva S 2.4L security light VIN: IG3NL52TOV
This what has been done,new ignition switch,lock cylinder,new insterment cluster. What i have found is the car will crank at times and start and stall. I did pull codes 1601 loss of proper key code,and 1629 pcm overheat problem. Do i need to put in a pcm to co...
1999 Oldsmobile Intrigue GL 3.5L No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, mil not always illum VIN: 1G3WS52H4X
check all fuses, check harness at brake mod.,at blower moter, check grounds where I could easily see them. thinking possible ign. switch, also possible EBTCM. Don`t have tools to check each mod. or time. Has any one had problems with this before, thank you in ... Trouble codes: 1602 (loss of ABS Serial data EBTCM to PCM set with no light sometimes)
2000 Oldsmobile Silhouette GLS 3.4L Misfire, MIL Lamp on VIN: 1GHDX03E0Y
need help. tech's, mt's and l1's lol.i have a 2000 old's silhouette 3.4l that check engine is lite. code is po305 misfire on #5 cylinder. cuss had new plug's wires and o/2 sensors replaced. still missing and same code (po305).i checked #5 plug wire for spark w... Trouble codes: P0305 (5 misfire)
2001 Pontiac Montana 3.4L Poor Idle Quality VIN: 1GMD403E01
customer dropped off van , said that the throttle was sticking , after a lenghty road test the symptoms reoccurred , the engine would remain at 1500 some times 1200 rpm , scanner shows tps at 9 % and .57 volts so that should be okay mass air flow at 6 to 7 gra...
2003 Pontiac Grand Am SE 3.4L No Start, MIL Lamp on VIN: 1G2NF52E13
This all started after a lightning strike that took out a 2 TV's and a computer at the owners house.Car was a no start so a neighbor checked the battery and all fuses he could find.We checked the battery again and found 12.5 volts good under a load.The fuel pu...
2000 Saturn SW2 1.9L Poor Idle Quality, Stall VIN: 1G8ZN827XY
Vehicle came in with complaint of vehicle stalling and/or want to stall when slowing down and coming to a stop. No CEC light was on, but found P0637 & P1599 in memory. During road test: Driving at about 15-20 MPH then applying brake coasting to a stop vehicle ... Trouble codes: P0637 (Power Steering Control Circuit High), P1599 (Stall or Near Stall Detected)

Fixes & Summaries for GM
Fix/Summary Answers
1988 Chevrolet C1500 Cheyenne 4.3L ABS CODE 9 or 10 VIN: 1GCDC14189
Hello everyone and thanks for the help on this one. I checked the situation and it appears that the "extra" flash does count as one of the numbered flahes. Further digging revealed that the customer had wired a trailer brake unit into the vehicles brake lamp...
1991 Chevrolet C1500 Cheyenne 5.7L Poor Idle Quality, Stall VIN: 1GCDC14KXM
Thank you all for your information. I have learned more about TBI Chevys than I ever want to know in the last few days. I ended up doing and checking everthing that was suggested as long as I hadn't already done it myself. The actual fix was indeed the fuel pu...
1995 Chevrolet K1500 Suburban 5.7L Stall, starts and stalls VIN: 1GNFK16K1S
It has now been a week driving this truck everyday, without a problem. Customer has decided to take it and drive it until problem reoccurs.
1998 Chevrolet C1500 Cheyenne 5.7L No Start VIN: 2GCEC19R5W
Sorry it took so long to get back about this one but i am still waiting on customer to make up her mind to fix it or not. Thanks to all who replied. I tried what Michael from Gemany suggested about cutting the theft deterent wire, so far truck hasnt had a no s...
2001 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on, low power under load VIN: 1GCHK29191
Ihave not fixed vech yet it is an employees truck and it gets worked on in short spurts also have not yet rec tools to vac ck filter system as rec by member help thanks all for your help. We will let everyone know what ultimately fixes this problem. Trouble codes: P0093.
2001 Chevrolet Impala 3.4L current draw VIN: 2G1WF52E61
well went out this morning & i guess missed,before, the rtip 60 amp fuse which nobody seems to know what that stands for even gm so if you do email me [...] and let me know. the rear defogger and radio are on this only i think. i made the dis...
2001 Chevrolet Cab & Chassis Silverado 3500 6.6L No Start VIN: 1GBJC3419F
well i think we finally got this one fixed,i want to thank william for reminding me of the K.I.S.S. method,used 5/32" vac.tubing(fit tightly in holes)and borrowed cc burretts from local diesel pump repair shop(cc's=ml's)and did flow test on return system one b... Trouble codes: P0087 (fuel rail pressure too low).
1998 Oldsmobile Aurora 4.0L Cuts out VIN: 1G3GR62C4W
Just wanted to make sure I wasnt missing anything, and as we all thought maf was trash. It was filthy and I attempted cleaning with brake clean and a qtip as suggested, but did not solve issue. Replaced sensor and car is running great.
1997 Pontiac Firebird 3.8L No Start, INTERMITANT NO START VIN: 2G2FS22K2V
With out the problem acting up in shop, we advised the customer we would like to try the ignition lock cyl, they agreed leaving the door open to possibly having the same problem come back with out being able to get a refund. haven't heard back in 4 days, hope ...
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