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Prev Professional Automotive Repair Technical Discussions for July 16, 2013
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Open Help Requests for GM
Help Request Answers
2000 Cadillac Eldorado ESC 4.6L Misfire VIN: 1G6EL12Y0Y
I am hoping someone out there has seen a Cad Northstar engine with a problem like this before. Engine will miss at idle only(650 to 700 rpm).Not a hard dead miss. Raise rpm to 800 and miss goes away. It is misfiring on #3 cylinder only. Will not miss hard enou... Trouble codes: P0300 (Random cylinder misfire)
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1995 Chevrolet S10 2.2L Charging VIN: 1GCCS19495
truck came in running poorly. found plugs fouled and wires routed incorrectly. also alt. was not charging. replaced plugs and routed wires correctly truck ran much better. the problem now is when alt is plugged in (one wire plug w/brown wire) engine misses. al...
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2000 Chevrolet K3500 7.4L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCHK34J7Y
Pickup came in running very poorly with a bad knock in lower end of motor. Put in rebuilt motor, rebuilt trany, cap, rotor, plugs, wires, and fuel filter. This is when the fun began! It starts fine, runs fine, until it goes into closed loop. It starts to missf... Trouble codes: P0132, P0151
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2001 Chevrolet Blazer LS 4.3L readiness moniters VIN: 1GNCS13W41
This vehicle came into our shop about a month ago with a code p0446. We replaced evaporative vent valve, problem appeared to be corrected, no codes are pending, but readiness moniters were not resetting. We advised customer to drive for a while then return to ...
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2001 Chevrolet Blazer LS 4.3L Stalling VIN: 1GNDT13W01
This blazer came to with a stalling when hot condtion, it has been very hard to duplicate, I did get it to act up once, I let it idle for about 3 hours and when I went to put it in drive to pull it in the car stalled, I did not have my fuel pressure gauage hoo...
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2004 Chevrolet Cavalier 2.2L odometer VIN: 1G1JC52F34
The odometer decided to go to 999999 and stay there, the speedometer is fine and accurate, the trip meter works but indicates too hi, shows 10k after doing approx 2k, vss and all other monitored data is fine, scanner indicates proper serial number for vehicle....
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2005 Chevrolet Malibu LS 3.5L No Start, Cuts out VIN: 1G1ZT54875
No codes to go by. After fueling up the car will sometimes loose power stall and be hard to restart. I researched it and I got some feedback on purge valve getting stuck but no explanation of why. Whatever input on this or any other possibilities appreciated.
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2003 Hummer H2 6.0L Air temp VIN: 5GRGN23U53
I have been blessed with working on a Hummer H2 stretch limo. A/c doesnt blow cold. I charged it, and installed a used compressor(not in that order :P) per customer request as he just bought this and the compressor pulley was seized. The customer states that i...
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1993 Oldsmobile Cutlass Ciera S 3.3L Stall
this vehicle as you accelerate it will cut off as if you turned key off.put in nutral will start right back up.I jacked car up left wheel first runs fine ,then i jacked right side up run it in gear it cuts off.unpluged vss sensor runs fine. need help not sure ...
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2005 Pontiac GTO 6.0L remote locks VIN: 6G2VX12U85
when using the remote to lock doors sometimes drivers side lights come on and stay on until unlock or drains battery. If loud car or bike sets alarm off the lights will come on when nobody is around and drain battery. If remote is not used battery will not dra...
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2008 Saturn Aura XR 3.6L Mechanical VIN: 1G8ZV57748
I have dug myself into a hole. I started to replace this transmission and don't have a lift. I would like to know if anyone has change the transmission in one of these cars without a lift? Apparently I need to drop front subframe with engine and trans together...
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Fixes & Summaries for GM
Fix/Summary Answers
2001 Chevrolet S10 2.2L Poor Idle Quality VIN: 1GCCS195X1
The short answer is that the ignition module was bad. The long answer is I'm very dissapointed in all the replies that said timing. I posted in the original request that i had visually inspected the timing and shame on all you who couldn't understand that, a...
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2002 Chevrolet Express 3500 5.7L Misfire VIN: 1GBJG31R32
ok guys still fighting i pulled heads off found bent valve number six so we sent the heads out repaired heads put all back together unbelievable this thing runs worse thgen before dont think this one can be fixed any suggestions would help Trouble codes: 300 (Mifire).
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2003 Chevrolet Silverado 1500 4.8L fuel VIN: 1GCEK19V13
evening all I checked the odometer with the mile marker posts on freeway and it is really close,so I guess it is like most said bigger tires more power to move,if I find anymore I,ll repost.Thanks for the advice
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2004 Chevrolet Classic (Car) LS 2.2L No Start VIN: 1G1ND52F94
Sorry this took so long. Well here it is, after weeks of messing with this and loading the powers and grounds as many said to do I finally ended up checking all of the pin tightness on pcm connectors. Found a couple that were loose so made them tighter and it ... Trouble codes: B1379 (device ign 3 circuit), U1000 (loss of serial data for class 2), U1088 (loss of SRS/SDM comm).
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2006 Chevrolet Silverado 2500 HD LT 6.0L Hesitation, Surge, Misfire VIN: 1GCHK23U86
Thanks guys for all the help, after re-checking everything and doing a leakdown test on #6 everything still pointed to fuel pressure or restricted exhaust. I took the entire exhaust on bank 2 out of the truck and found it was plugged between the manifold and c... Trouble codes: P0300, P0101.
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2009 Chevrolet Silverado 2500 HD LT 6.0L chargeing VIN: 1GCHK53K99
The cust, did say the different battery helped, but when he switched hearing aids the noise went away . Sorry for the slow reply, sometimes cust want help but wont tell us any input untill they have the car fixed. Thanks Mark
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2005 GMC Sierra 2500 HD SLE 6.6L Excessive Emissions, Surge, Misfire, Poor Fuel Economy, Black/white smoke VIN: 1GTHK23245
Well I wish I could say this thing is fixed but its not. At least not yet. After putting this request in, we called the GB injector company tech hotline. They said we did everything we could do before calling and told us get 8 new injectors. We did. We also ad... Trouble codes: P0305 (Misfire), P0303, P0404, P0401 (EGR flow insufficent).
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1992 Oldsmobile Cutlass Ciera 3.3L Horn VIN: 1G3AL54N6N
THANKS TO ALL WHO RESPONDED.I NEVER FOUND A HORN RELAY!OUT OF DESPERATION I REMOVED THE HORN PAD TP SEE IF THERE WAS POWER AT THE WIRE IN THE TURN SIGNAL CAM.THE SPRING LOADED WIRE WAS NOT MAKING A GOOD CONTACT,AND ALSO THE HORN PAD ITSELF NEEDED SOME "ADJUSTM...
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