[mackack]

I am having what I think is tranny problems. It happens intermittently. Normally, it shifts @ about 2500-2750. Sometimes it shifts late, like @ 3500-4000 for all gears. It tends to "labor" more when this is happening. It will do it for a while then when I stop or get home to look at it, it is happening anymore. I also noticed that one time it was doing this, the speedometer was "bouncing". It would be at the speed I was going and drop about 20MPH then bounce back up to normal speed. How do I know if the tranny is running in "limp mode"? Can anyone give me any advice on this problem? I haven't had any engine lights come on during any of the times it has acted up. Any info would help lots.

[Test]

First of all, check the transmission fluid. Make sure it is full and clean. It should be redish in color.