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Prev Professional Automotive Repair Technical Discussions for January 29, 2010
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Open Help Requests for GM
Help Request Answers
2003 Cadillac CTS 3.2L Ign. key/ shifter/ class 2 data/ modules VIN: 1G6DM57N73
Thanks in advance. I got this CTS with key stuck in ignition, won't go to off only if I manually pull down lock solenoid plunger at ignition lock then will turn off. also won't go out of park, with a no start/no crank. Bunch of codes: P1629/U1300/U1040/U1153/U...
1999 Chevrolet Cavalier Z24 2.4L Misfire, MIL Lamp on VIN: 1G1JF12T6X
I would like to Thank all of my fellow Hard working Tech in advance, cause I know you all will come through like you always do. Semper Fi This vehicle was purchased with the P0302 symtoms and some items replaced. I decided to replace all items again myself wi... Trouble codes: P0302 (Misfire Cylinder 2)
2001 Chevrolet S10 ZR2 4.3L Misfire VIN: 1GCCT19W11
we have replace every part related to this problem and still continu to get a multipul miss fire code but i was told that the timming should read 0 with the scaner connected but its at -13 and i tried reseting timming but it will on change to 40 i can not get ... Trouble codes: P0300
2003 Chevrolet Express 1500 4.3L Erronous Data VIN: 1GCFG15X43
This truck came in with a ck engine light on before inspection. Repaired the affected 02 sensor and everything looked great. After inspection, the vehicle was brought back because it did not report all I/M tests passes in the ECM. This was suspected because th...
2006 Chevrolet Impala LT 3.5L engine oil low / add oil message VIN: 2G1WT55K06
Customer came in for LOF and complaint of "engine oil low / add oil" message on. Checked oil level (1/2 Qt low), changed oil, and found switch still open after refilling with oil and PID reading low oil "yes". Installed new GM switch. Switch now closes with ab...
1998 Oldsmobile Bravada 4.3L transfercase VIN: 1GHDT13W4W
this vehicle came in due to service four wheel drive light on. we found the issue but have not seen this one before. the shift motor is full of fluid, removed connector and fluid drains out. we can see a seal around the sector shaft but cant seem to get a good...
2001 Saturn L200 2.2L dash light VIN: 1G8JU52F81
I checked charging system originally and found that the battery had a bad cell. Replaced battery and checked charging system. Alternator had an internal failure. Replaced alternator and vehicle is now charging at 14.6 volts. However the battery light on in the...

Fixes & Summaries for GM
Fix/Summary Answers
1996 Chevrolet C3500 6.5L No Start, Stall VIN: 1GCHC39F5T
We had replaced the injector pump and Pump Mounted Driver with used parts, and it turned out the PMD was bad. We replaced it with a known good unit, and the problem is solved. Thanks for all your help.
2000 Chevrolet Suburban 1500 LT 5.3L 2-3 shift VIN: 3GNFK16T3Y
hey guys,thank you for all your input and help.somtimes its so easy to get upside down on ajob and start second guessing yourself.this site provides awesome support and is a blessing.we feel strongly that the second trans had somthing amiss inside such asstick...
2000 Chevrolet Blazer LS 4.3L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1GNCS18W3Y
I had to buy a scanner to do a crank relearn procedure.the scanner is worth more than the car. this did the trick. I thank you for the help. Trouble codes: P1345.
2002 Chevrolet Avalanche 1500 5.3L all dash lights VIN: 3GNEK13T02
I had told our service writer that the aftermarket radio was the best choice for this short, and it turned out that this was the case. He removed the radio and installed a new switch and everything works fine now. He had had the radio stolen and installed an...
2004 Chevrolet Silverado 1500 5.3L low beam bulbs
thanks for all your replies. I had checked the charging system. Everything looked good. So this second vehicle shows up tested both vehicles side by side. New "better" bulbs installed. sitting there running, lights on watching both charging system. One of my t...
2005 Chevrolet Trailblazer LS 4.2L Mechanical VIN: 1GNDT13S45
Sorry to waste your time. it was definetly 3 gallons overfull of oil. customer would not admit to putting it all in. He said his dad may have put some in also? So after draining it to correct amount and burning the exhaust out for about an hour no more smoke.
2005 Chevrolet Silverado 1500 LS 5.3L Upshifting VIN: IGCEC14T35
The majority of the replies actually do state that there is a second set of parameters for the transmission for hot and cold weather. I thought I was imagining (along with my wife) this. Thanks to Jerry, Richard, Don, Jerald and Bruce.
1992 Pontiac Trans Sport 3.8L No Start VIN: 1GBDU06L7N
I didn't make myself clear in my post, many replys wanted to know about fuel pressure. It quits running because it looses pulse and spark and runs when it gets them, I went ahead and put the fuel pressure guage on it and it allways has good pressure (42 p.s.i....
2006 Pontiac G6 2.4L MIL Lamp on VIN: 1G2ZF55B96
This one is fixed.I was unable to actuate the solenoids because our scan tool(snap on Modis) Does not have the capability.After clearing the codes I found a pattern, the lite would only come on after 2nd test drive.I ohmed tested again and exhaust solenoid tes... Trouble codes: P0013 (Exhaust Cam position actuator solenoid), P0014 (Exhaust cam position system performance).
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