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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for July 1, 2006
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Open Help Requests for GM
Help Request Answers
1999 Buick Regal LS 3.8L Poor Idle Quality, Misfire
I preety much explaind it all in the above response Trouble codes: P0300
1999 Oldsmobile Cutlass GL 3.1L cooling fans VIN: 1G3NB52M4X
The customer complained of overheating and a puddle of coolant on the ground. The puddle was found to be from purge and not a leak. Cap was tested, found bad and replaced, but purge continued. Coolant found to be purging due to engine overheating at idle becau...

Fixes & Summaries for GM
Fix/Summary Answers
1986 Buick LeSabre Estate Wagon 5.0L accumulator VIN: 1G4BR354XG
Thanks to all who replied. I actually found several and when I tried to pay, the transaction was followed up with a 'sorry its out of stock and discontinued'. I converted it to a standard booster and master. Only modification was enlarging the hole on the link...
1999 Cadillac DeVille 4.6L abs VIN: 1G6KD54Y2X
We checked and cleaned all of the connectors at the module and replaced the driver side harness according to a service bulletin we found. Customer has drove it for a few days now with no problems. Thanks to all that offered help to us. Bill
1993 Chevrolet Astro CL 4.3L Poor Idle Quality, MIL Lamp on VIN: 1GNDM15Z6P
After cleaning up the linear EGR port the vehicle ran fine. As for the scan tool reading of -[...] F I am pretty sure that is an error. Some of the replies agreed that the vin Z engine does not have an IAT or MAT sensor. I am not sure why it is showing up ... Trouble codes: 32 (egr malfunction), 43 (knock sensor).
1994 Chevrolet C1500 Suburban Silverado 5.7L unknown VIN: 1GNEC16K4R
Thanks again guys. An experienced trans tech and I tore down the trans. The shell for the sun gear was the initial cause. Alot of metal in unit. Gonna need alot of hard parts. Probably better gettin a unit from GM at this point.
2001 Chevrolet Impala 3.4L dual a/c control unit VIN: 2G1WH55KO1
Thanks to all who responded-everyone was right on-we evacuated the system-was low by 10 ounces.After recharging to proper level all vents reported 40 deg air.Prior to recharging there was an 8 deg difference between drivers and passengers side vents.Car is fix...
1997 Oldsmobile Achieva S 3.1L No Start VIN: 1G3NL52M3V
two replies said to test circuits to instrument cluster this confirmed power. scan tool showed data being sent replaced cluster with used unit and it fired up did passlock relearn cleared codes and problem solved.ps cluster only fits 97/98 thanks to all for th... Trouble codes: P1573, P1629, P1641.
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