I have a 2wd F-150 with 190,000 (second engine). One day, while coming to a stop, the engine kept revving and it killed. That's the situation now. While moving, things seem to be fine, but when you try to stop, the engine keeps going and it kills.

The ATF and filter have not been changed since the engine was replaced, about 90,000 miles ago. I can tell from the "spot test" on a cloth that it does need to be changed. But, the fluid level is just fine -- no leaks!

This sounds like a torque converter problem to me. If anyone has another experience or idea, I'd love to hear it.

What I've heard is this should be about $600 to replace just the torque converter (no indication the tranny needs to be rebuilt).

I haven't been able to drive my truck for six months and it is driving me crazy. I'm reluctant to take it to my usual mechanic, who I trust impecably, because I've heard that tranny problems need specialists. I'm sure a tranny place will tell me the whole thing needs to be done and try to rip me off.

My wife's conversion van is full of hay from hauling it inside. I am not winning any popularity contests.

 

I would highly recommend changing all the fluid but avoid a full flush. It does sound like a torque converter problem, I think you should be fine taking to to your normal mechanic, if he is really trustworthy then he'll let you know if you need a specialist.

 

ive never heard of a torque converter causing that kind of problem

 

I think what he is trying to say is that the converter isn't unlocking so it's acting like a manual transmission vehicle does if you try and stop without pressing the clutch pedal.

Darrin

 

Never had this problem with rear wheel drive. It happens on front wheel drive all the time. Not the converter though. It is usually the sol. that controls the lock up on the converter. Try driving with the brake light switch removed but still plugged up so brake lights are on. This lets the trans think it should unlock the converter. If so lock up sol is more than likley the problem.

 

In this transmission there is a valve in the valve body that should prohibit converter lockup in first gear even if there is an issue with the solenoid sticking open. That does make it more likely that there is an issue in the converter if the problem actually is that the converter clutch is stuck on.

Darrin

 

Thanks guys. I did some reading on what oldfooter said. There is a diagnostic description of this problem with GM transmissions at: http://autorepair.about.com/cs/troub.../aa061701a.htm. The problem described is exactly what is happening to me. This give me a place to start.

However, if Darrin is right and it cannot be the solenoid, could it still be an electrical problem?

 

The only electrical problem that it couls be if it is torque converter related is one with the solenoid. So I will have to answer with a no. This cannot be an electrical issue if it is torque converter related.

Darrin