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The auto transmission on my 2001 4WD SOHC 4.0L EB Explorer seems to occasionally "slip" a little when changing gears. Doesn't seem to happen from1st to 2nd or maybe I don't notice it. Engine revs sometimes increase 2-3 hundred RPM for a half to one second when shifting up. Seems to happen more often when cold. RPM Shift points have always seemed too low for my liking but I don't think this is related to the problem. I have 80K miles and the slipping has been happening for a while but not seeming to get any worse. Transmission fluid was changed at 30K. Any feedback on what might be causing this particular problem, how to narrow it down, possible solutions etc. would be appreciated.
I tried changing the transmission filter, cleaned the magnetic strip in the pan and wiped the pan clean. Some fine gray material but didn't seem excessive for 80K. Replaced the 4 or so qts of drained fluid with new fluid. I thought it seemed better for a couple days but now seems the same or a little worse. It's hard to compare because the frequency of it happening changes. I have also noticed that when changing from forward to reverse or reverse to forward there is a delay, but will catch quicker with slight acceleration. Not sure what the next step is. I hear so many horror stories about shyster tactics when it comes to transmissions. Does this sound like a serious problem? Should I pay for a diagnostic at this point, Power flush? Any suggestions or similar experience knowledge appreciated.
I'm hoping there are some knowledgeable tranny folks out there that might be able to narrow this down. I could use some guidance if you are able to reply.
I can add that the delay when moving from drive to reverse or the other way seems to be longer and more frequent, but feels solid when it engages.
I have no idea in how to help since I do not know about cars and the complex solutions(I am try to find out how to drain the torque converter on my Eddie Bauer -no luck so far-) but, I understand your frustation.
I hope you can find a solution soon!!
J.
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