Quote:
Originally Posted by convertedman
Jack, I am going to post this on f150online aswell but wanted to get your opinion and anyone else that wants to chime in.
One of the main reasons that I got this programmer was the fact that my tranny was slipping. At about 30mph or so foot off the pedal coasting, I would give gas to pick up with traffic or start back up a hill, the engine would idle up as if it was in neutral and then drop into gear. This seems to have been taken care of with the tuner and the canned tunes on it. Last night when I was trying out my new toy I noticed that problem was gone. After I made the turn and started heading back to the house I throttled it pretty hard and was holding thru the gears. I believe going into 3rd it slipped, idled up then dropped into gear.
I am thinking this might be an issue with the tranny still since this happened.
Any thoughts would be appericiated.
|
There COULD be a problem in your transmission. One of the things that a tune does is to reduce the time lag between clutch engagement and release during shifts. The tune also increases line pressure and reduces the torque reduction "dive" that Ford engineers into things.
So, you COULD have excessive belt slip which may be a sign of worn belts. But, you might also try increasing the shift "firmness" a bit. I wouldn't make a huge change here though. Since the slip was only felt 3-4, try changing that to a +3 setting?
You have not said how old your truck is, and I don't know how long it's been since you've had the transmission serviced. I'm not sensing that your driving style is particularly "aggressive" though. And, I'm sensing that normal, part throttle shifts feel fine?
- Jack