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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 1, 2007
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Open Help Requests for GM
Help Request Answers
1993 Chevrolet K1500 Cheyenne 4.3L Hesitation, MIL Lamp on VIN: 1GCEK14Z2F
customer could not get dist in correctly, had spark knock, we reinstalled and set timing per factory specs, spark knock gone, code 43 still there, slight hesitation and minor miss under load only. (Customer is over weekend pulling plugs)Any suggestions as to e... Trouble codes: 43 (est problem), 42 (est error)
2002 GMC Sierra 2500 6.0L Electronic VIN: 1GK46L7D8C
This truck came in on a hook as a precaution, is was in limp home mode (3rd gear only), had only the "P" and "R" on the indicator, Checked the position switch on the side of the trani, was faulty. replaced the switch, indicator works properly, but... clear the...
1978 Pontiac Firebird 5.7L engine VIN: 1G2FW218XH
Good evening fellow techs, I have a problem here with my wife's TA, We replaced the engine about 2500 miles ago, 1500 miles later the thrust bearing had failed. The reman folks said bad torque converter not their problem, Got reman crack from local vendor and ...
2001 Saturn L300 3.0L Misfire VIN: 1G8JW54R11
hello techs,car came in with intermittent no start/hard start prob.scanned& had [...] snsr.code,replaced crk.snsr.-that prob. ok now.discovered #2 cyl.had constant misfire,idle & off idle.checked compression,spark plug(swapped w/ another cyl.),spark plug bo...

Fixes & Summaries for GM
Fix/Summary Answers
1993 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP53116
well it is fixed we hope...the wires and cooling system were checked and all was ok..this time went with a OEM part. and that has fixed it for now anyway. want to thank all that sent possible fixes... Trouble codes: 21 (tps high voltage in history), 22 (tps low voltage current).
2000 GMC Jimmy Diamond Edition 4.3L Surge, Misfire, MIL Lamp on VIN: 1GKDT13W7Y
hello techs,thanks to all who replied.sorry it has taken so long for summary-this is my vehicle & have been working on it when time permits.tried swapping crank snsr./shimming crank snsr.-no diff.observed knock snsr. when misfiring occurs & it is not active.on... Trouble codes: P0300.
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