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(TA248-0928) Engine rpm decrease at gear shift

TECHNICAL ADVICE - Quick information for your help
Bulletin Nbr: TA248-0928
Date: ........... July 2012
Market: All
Engine rpm decrease at gear shift

VEHICLES CONCERNED

Saab 9-3 SS, SC, CV MY07 - MY09 with engine B207 and manual transmission.

BACKGROUND

Customers complain that the engine rpm decreases to much when shifting gears.

CONDITIONS

The ECM SW is calibrated to an unfavorable value within the calibration tolerance.

SYMPTOM DESCRIPTION

The engine rpm could sometimes drastically decrease and could result in rough idling and/or hesitation/jerking, during some driving conditions e.g. gear shifting at a roundabout, braking before traffic lights or when turning in a junction.

ACTION

Update (reprogram) the T8 ECM with the latest status of the soft ware for the concerned cars. The soft ware will be available at TIS2Web Release 7.5 on July 13. (Required also updated Tech2 version to 141.00).