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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 13, 2005
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Open Help Requests for GM
Help Request Answers
1997 Chevrolet K1500 5.7L Excessive Emissions, Poor Idle Quality VIN: 1GBEK19R7V
Hello all This truck came in running very fat. The map was out of range 2.5 volts. Replaced and now runs 1.0-1.3. Tried another mass air flow which runs about 8.7 volts on a hot engine. Replace the pressure reg since fuel pressre was at 75 psi. That made a big...
2000 GMC Safari SL 4.3L MIL Lamp on VIN: 1GKDM19W2Y
Van came in for state inspection, failed for MIL with P0 172 and 175-rich condition. Replaced injector/pressure regulator assy. cleared codes, vehicle returned 1 day later, passed inspection. 2 days later, MIL returned w/ same codes. Replaced 02's, swapped out... Trouble codes: P0172, P0175
1991 Pontiac Grand Prix SE 3.1L Cuts out VIN: 1W36TW457H
hi all i have the pontiac that has got me stumped it came from another shop with missing plug wires and a broken intake plenium at the egr bolt-on mounts and a note from the customer, saying the other shop replaced a bad ing. module so i replaced the plug wire...
1992 Pontiac Grand Am SE 3.3L abs VIN: 1G2NE14N9N
I'm pulling out my hair on this one.It seems to have all the power circuits up and grounds.Motor packs cycle when crank up.I cannot seem to find the reason for no comunication. I would appreciate any help.Robert

Fixes & Summaries for GM
Fix/Summary Answers
1947 Chevrolet One Ton 250CID Crank Balancer VIN: 7143304811
Hey Guys...Thanks for the help. The Crank Pulley was just really stuck. Some replies mentioned a bolt and washer holding it, but this was not the case. Attached puller, tightened as much as I could, then shoved a steel bar through the hole in the grille for th...
2001 Chevrolet Tahoe 5.3L Drive-axles VIN: 1GNEK13T61
Customer hasn't returned yet, overall concensus is that it is the normal abs self test and likely a hose/cable/line is grounding and transmitting the noise. Will update with final fix as soon as possible. Thanks to all who offered assistance.
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