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Prev Professional Automotive Repair Technical Discussions for January 20, 2009
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Open Help Requests for GM
Help Request Answers
1991 Chevrolet G20 Chevy Van 5.7L drivealibity VIN: 2GDEG25K7L
tranny was not changing out, replaced the governor assembly the gear was worn.three weeks came back in with the same problem what is causing the gear to wear in three weeks. thank you
1992 Chevrolet Cavalier RS 2.2L Cuts out VIN: 12345RTUIO
Customers car runs fine until it warms up after a a few miles etc, We have found that it cuts out like fuel starvation etc.Fuel pump was replaced recently and pressures are good. 42 code was found, refers to 'Electronic timing control' crank sensor? distributo... Trouble codes: 42 (Est spark timing control)
1996 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNDT13W9T
hi to all this blazer came in with a po122 code tps volt low ,so we replace the sensor same code then we trace the wires from the tps back to the computer clean all connector and same problem ,any help i will appreciate Trouble codes: P0122
1996 Chevrolet Tahoe 5.7L No Start VIN: R3TJ340121
after our work of replacing bad intake manifold gaskets to fix misfire on #6 cylinder it won't start. has spark if we put in gas it runs. distributor is installed correctley. Im not getting injection. we have power to injectors and good fuel pressure. checked ...
1997 Chevrolet Blazer 4.3L DRL module VIN: 1GNDT13W9V
Hey guys!! This is not a help me fix a problem,but more where I can find the DRL module for this truck.I can not tell you how ticked I am...I followed MOD and it was to be behind the glove box,NOPE.So I phoned the dealer and it was to be on top of the steerin...
2002 Chevrolet Suburban 2500 LS 8.1L No Start VIN: 3GNGK26G52
vehicle was diagnosed by another tech in the shop as a faulty crank sensor. attempted repair but the sensor broke off flush in block. anyone run into a problem like this and if so what did you try? i am trying to drill into it a bit maybe loosen some of the ru...
2002 Chevrolet Malibu 3.1L Poor Idle Quality VIN: 1G1SF23368
Car came to shop unable to drive no accel. Throttle posistion sensor reads 35% open manual says should be only 20% . Any help would be appreciated Trouble codes: P0201
1995 GMC K2500 Sierra SL 5.7L not charging VIN: 1GTK24KXSE
the transmission was just replaced and now the battery light is on and there is no power to the single wire plug on the alternator. I would not think the two would be related. What powers the single wire on the alternator? Thanks in advance
2000 GMC Yukon XL 1500 SLE 5.3L engine VIN: 3GKFK16TXY
Replacing head gaskets on this yukon and have found out from my machine shop that one of the heads are cracked. the machine shop tells me that he has seen a rash of these heads cracked. He "thinks" this may be caused by overtourqing at the fact.due to the fact...
2002 GMC Envoy SLE 4.2L low beams VIN: 1GKDS13S32
hey there techs, vehicle came in 2 weeks ago, for intermitant low beams, customer said after several minutes of driving, auto headlights would turn off, high beams would work but no lows, auto or manual.after several miles of drivingthey would work again. this...
1990 Oldsmobile Cutlass Supreme 3.1L Hesitation, Surge, Cuts out, Stall VIN: 1G3WH14T5L
remove coolance level sensor connector, no change. when engine hot, it flunctuate alot. replace iac did not help. code 35 for iac error,and can not clear code. what have i miss. thank advance for the help thoa Trouble codes: 035 (idle air conntrol error)
1992 Pontiac Firebird Trans Am 5.0L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 1G2FW23F3N
this car runs great at idle. acts like its starving for fuel. everything under the sun has been replaced. COIL, DIST, FUEL PUMP, FULL TUNE UP, TPS. IAC, .. IF YOU PLAY WITH THROTTLE YOU CAN GET THE RPM'S UP PRETTY GOOD.. BUT IF YOU GO FULL THROTTLE IT FALLS ON...
2002 Saturn L300 3.0L Hesitation, Surge, MIL Lamp on VIN: 1G8JW54R82
Hi and thanks for the help, I have a saturn here that has me second guessing myself here we go. First of all it has a problem under load any thing over 50% throtle.And sets a code for mass po102 low voltage.In my stall no problem found and i can't get it to ac... Trouble codes: P0102

Fixes & Summaries for GM
Fix/Summary Answers
2006 Buick Rainier CXL 4.2L Rear wiper VIN: 5GADT13S26
3 replies, Two have had experiences with bad wiper motor.Walter from Tennesee had a good idea. to check the BCM for codes and or the motor pulling to many amps shutting the system down. It turned out that the two orange power wires in the pass thru boot betwee...
1993 Chevrolet Lumina Euro 3.1L Fit & Finish VIN: 2G1WN54T4P
I got the door open. Not really the way I wanted too buti couldnt get into the inside very easily because of the door panel still attached to the front of the door. The instrument panel is right up against it and wouldnt let it slide out. The lock mechanism an...
2002 Chevrolet Camaro Z28 SS 5.7L MIL Lamp on VIN: 2G1FP22G42
This one was the pass side check valve in the air management system. I thought i probly was but customer needed the car back before I could check it all out. He brought it back and it is fixed. Thanks for all the help. Trouble codes: P1416.
2004 Chevrolet Colorado LS 3.5L ecm VIN: 1GCDT13694
this was agood pone replaced ecm had flashed by dealer came up with different problems replaced apop bsensors so far so good thanks again
2004 Chevrolet Avalanche 1500 5.3L driver's window VIN: 3GNEC12T64
As suggested by most, I cleaned and lubed the tracks, customer has not returned, so I assume it is fixed. Thanks to all.
2004 Chevrolet Silverado 1500 5.3L air bag VIN: 2GCEK19TO4
Well it sounds like a common problem with bad connections in the under seat harness,for the seat position sensor. Both sides are affected. My customer hasn't come back in yet, so I can't post a fix but feel confident that I can soon. Thanks for all your input,...
1985 Oldsmobile 98 Regency 3.8L MIL Lamp on, V REF VIN: 1G3CX6937F
Well the vehicle has been gone for 5 days. Just to let you know I sent two of the PCM's to Auto ECM and they said nothing was wrong with either of them. So they dont have the cappability to test them correctly. They did give me new proms but that did not help...
1993 Pontiac Bonneville SE 3.8L hydralic system VIN: L0P1293859
Thanks for all the ideas on this one. I may not get to it till this spring. I expect by clamping off each wheel and adding them back into the system one at a time will tell me where the problem is. I'm guessing one or both of the front calipers is the problem ...
1998 Pontiac Sunfire SE 2.2L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1G2JB1245W
Well thanks to all for your help. the problem turned out to be a wire rubbing in the harness that goes to the injectors. We redid the pull and tug test and it showed up really fast and did not go away till we opened up the wiring loom and found it repaired wir... Trouble codes: P0125 (coolant sensor), P0300 (random miss fires), [0342, P0122 (tps).
2001 Saturn SC1 1.9L Poor Idle Quality, Stall VIN: 1G8ZP12831
thanks to those who replied,..it was as I suspected,.the coolant temp sensor was bad,..replaced sensor clear KAM,.and the temp gauge came up as it should and all my fuel trims came back into spec,..and the lady did call me to inform me the car was running grea... Trouble codes: P1599 (engine stalled).
2003 Saturn L200 2.2L MIL Lamp on VIN: 1G8JU54F73
We decided to start with fresh fuel after customer informed us of how in-frequintly the Saturn has been driven lately. That took care of the lean code p0171 as well as the minor hesitation and hard start when cold. During the test drive after the fuel transfus... Trouble codes: P0171, P1599.
2003 Saturn Vue 3.0L No Start VIN: 5GZCZ63B73
Thanks again to all that replied! The defective component was the cranksshaft position sensor. The vehicle luckily stalled while idling and would no start for a more extended time. I tested fuel pressure and verified in spec at 55 PSI and used a voltmeter on ...
2008 Saturn Aura XR 3.6L Tire VIN: 1G8ZV57748
Thanks Jesse, 1. Take one set of Aura keys put in ignition and turn to on/acc and do not start car. 2. Push info key on wheel until you get to the LF 32psi RF 32psi screen. 3. With other key fob, standing outside of car, depress both lock and unlock buttons an...
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