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PROM - Low Power/Stumble When Accelerating/2-1 Slip

File In Section: 06 - Engine/Propulsion System

Bulletin No.: 99-06-04-045

Date: October, 1999

TECHNICAL

Subject:
Low Power/Stumble When Accelerating in Turns or Straight Line
(Reprogram PCM)

Models:

1998-99 Buick Park Avenue, LeSabre
1998-99 Oldsmobile Eighty-Eight
1998-99 Pontiac Bonneville

Condition

Some customers may comment on low power or stumble when accelerating in turns or straight line. Other concerns may include a 2-1 transmission slip, an SES light for P0405/P1374 and an L1 coast-up IAC interaction.

Correction

The following service calibrations have been released to update the vehicles to correct the conditions.








Parts Information

The calibrations listed are electronic calibrations and are NOT available from GMSPO. Calibrations will be available from Techline starting June 1999, on the TIS 2000 Disc 12 CD ROM.

Warranty Information

For vehicles repaired under warranty, use:

Labor
Operation Labor Description Labor Time

PROM - Use published labor
J6355 Reprogramming operation time