Edmunds Answers

Voted Best Answer

  • avatar karjunkie 12/24/09 8:51 am PST

    42RE Automatic Transmission slipping problems are usually a result of using the wrong ATF fluid or not replacing the fluid frequently enough. You need to use ATF+4 fluid ONLY. I would start by doing a drain of the old fluid and adding new fluid and a new filter. Fairly easy to do by dropping the oil pan. If this does not solve the problem, you may need to have the bands adjusted. The front (kickdown) band adjusting screw is located on the left side of the transmission case above the manual valve and throttle valve levers. Loosen band adjusting screw locknut Then back locknut off 3-5 turns. Be sure adjusting screw turns freely in case. Apply lubricant to screw threads if necessary. Tighten band adjusting screw to 8 N·m (72 in. lbs.) torque. The transmission oil pan must be removed for access to the rear band adjusting screw. Loosen band adjusting screw locknut 5-6 turns Be sure adjusting screw turns freely in lever. Tighten adjusting screw to 8 N·m (72 in. lbs.) torque.

Answers

  • ray80 12/24/09 7:37 am PST

    When was the last tine fluid was changed?

  • love42779 12/24/09 8:28 am PST

    Not sure, brought it last year from a dealer.

  • karjunkie 12/24/09 8:51 am PST

    42RE Automatic Transmission slipping problems are usually a result of using the wrong ATF fluid or not replacing the fluid frequently enough. You need to use ATF+4 fluid ONLY. I would start by doing a drain of the old fluid and adding new fluid and a new filter. Fairly easy to do by dropping the oil pan. If this does not solve the problem, you may need to have the bands adjusted. The front (kickdown) band adjusting screw is located on the left side of the transmission case above the manual valve and throttle valve levers. Loosen band adjusting screw locknut Then back locknut off 3-5 turns. Be sure adjusting screw turns freely in case. Apply lubricant to screw threads if necessary. Tighten band adjusting screw to 8 N·m (72 in. lbs.) torque. The transmission oil pan must be removed for access to the rear band adjusting screw. Loosen band adjusting screw locknut 5-6 turns Be sure adjusting screw turns freely in lever. Tighten adjusting screw to 8 N·m (72 in. lbs.) torque.

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