robtthorne

I have a 2006 Explorer V8 6-Speed transmission that seems to be slipping when gently accelerating. The transmission seems to want to drop back into fifth but doesn't grab and slips back and forth from fifth to six.

I remedy either by more acceleration or taking the vehicle out and back into overdrive.

Secondly when slowing down the transmission exhibits a bit of a clunk like there is play in the lower gears. Worse when in stop and go traffic it seems to clunk when dropping into low gear and again sometimes when I start to gently accelerate again ... but mostly when slowing down.

Any ideas.... before I bring this in for service?

Thanks All,

rtt

CatSkinner

Try changing the transmission fluid and filter and see if things improve.

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robtthorne

Transmission was serviced last year because of a leak around the transmission pan. They may have used the same fluid but I don't think so.

Do you know of other reasons that this may be happening.

I have had the vehicle for 3.5 years and this has just started happening.

R.S.LOGAN

Check this , might give you some ideas for checking .

2006 Ford Explorer: V8..hesitates..5th-6th gear..accelerating - JustAnswer

robtthorne

Thank you for the feedback.

That sounds exactly like my problem and I will follow up with Ford Service on that suggestion.

Cheers,

R.S.LOGAN

Glad to help , you could maybe update forum later ?

robtthorne

Hi All,

Just wanted to provide an update on this issue. Not only was it exactly the problem, but it allowed me to properly communicate the issue.

The Ford mechanic wanted a test drive first and then, just like you stated, he had to enable the logging and we took another drive with the scope hooked up.

Sure enough number eight coil was failing during the tactile symptoms easily recreated entering a ramp or slightly accelerating when on the highway.

Bingo!

Also noted were other cylinders slightly out of performance, which were all corrected with new plugs!

Now my back up sensors are failing and intermittent... the console sometimes says "Check ... sensors", so that is the next thing.

If you have any ideas on that one, let me know.

Great service on this forum .... keep up the good work!

Thanks again.

R.S.LOGAN

Good to hear you got it solved , thanks for updating the forum .

CatSkinner

First thing is to pull the sensor wires, clean the connectors with electronics cleaner and give them a coating of dielectric grease and see what happens.

__________________
Prius repellant, just add gas.

robtthorne

Thanks. They magically have begun to work again and I will do that the next time they act up.

Cheers,