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Prev Professional Automotive Repair Technical Discussions for March 9, 2013
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Open Help Requests for GM
Help Request Answers
1994 Chevrolet Astro 4.3L No Start VIN: 1GBEL19W6R
This 1994 astro is hard starting. It does not happen all of the time, but quite often. It doesn't seem to matter if engine is cold or hot. There is always good spark and 60psi fuel. I think it is something electrical because i do not have any scanner communica...
2000 Chevrolet Blazer LS 4.3L transfer case VIN: 1GNDT13W1Y
Have replaced dash switch no change,checked wireing checked encoder motor per instructions in archives just barely feed 12 volts to motor and just barely or you will ruin the encoder motor then change polarity and return to original position and it worked.I ha...
2001 Chevrolet Cavalier 2.4L timing chain VIN: 3G1JF12T11
This car came in with a rattle in the timing chain area. At idle it is fairly quiet but just above idle it rattles. Sounds like the long run of the chain is slapping the front of the timing case at this rpm. Bring the revs up further and the noise almost compl...
2003 Chevrolet Silverado 1500 5.3L No Start VIN: 1GCEK13T13
Truck came in with no reverse engagement in transmission, repaired transmission, attempted flash of VCM to update calibrations for fuel system and transmission control system. The rig I was using was a tried and true setup that I have used many times for GM ve... Trouble codes: U1000
2009 Chevrolet Equinox LS 3.4L MIL Lamp on VIN: 2CNDL13F49
car has all the codes mentioned. plugs wires were changed. customer says then check engine light comes on, the traction control light also comes on and looses power. i am thinking bad throttle body. did the testing as per all data. just wanted to see what othe... Trouble codes: P0121, P0171, P0300, P2119, P2135
2004 GMC Canyon SL 3.5L Reverse
I picked up this Canyon that had front end damage and tranny issue. All I know is that kids were drinking and driving and it got knocked into reverse and spun out and hit something. Air Bags did go off. I got the vehicle (drive shaft was already disconnected) ...

Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Blazer LS 4.3L transmission VIN: 1GNDT13W1Y
I'll close this post with a summary as the transmission is not yet fixed, i'll report on the engine as this was mostly my error,the no shift till high rpm was because it was in low range ug dummy why didn't I think of that.Maybe some beginner does not need...
2003 Hummer H2 6.0L steering VIN: 5GRGN23U73
thanks for all replies,yes it was the gear box-replaced box,flush system also put an inline filter on return hose.every thing is back to normal.
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