2001 f150 trans slow to engage drive.
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You have either a leak, Crossleak or the forward clutch is spent.
A forward clutch can be completely worn out (No friction material left) & still hold once it latches....It will just take longer for it to latch.
A forward clutch can be completely worn out (No friction material left) & still hold once it latches....It will just take longer for it to latch.
Sounds like my neon right before the transmission went out.
@clinebarger Where would it be leaking and is it something I could fix?
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Internal leak in the Forward Clutch apply circuit, Only one possible leak point could be fixed without removing the unit.....
For the 2001 model year, Ford eliminated the Separator Plate support plate that sat below the 3rd Accumulator. Over time the Separator plate cracks & bows out from the Valve Body causing a crossleak between the Forward Clutch & Direct Clutch circuits.
I must advise you that this rarely fixes the unit long term as the Forward & Direct frictions are already distressed from slipping (Forward) & Dragging (Direct).
For the 2001 model year, Ford eliminated the Separator Plate support plate that sat below the 3rd Accumulator. Over time the Separator plate cracks & bows out from the Valve Body causing a crossleak between the Forward Clutch & Direct Clutch circuits.
I must advise you that this rarely fixes the unit long term as the Forward & Direct frictions are already distressed from slipping (Forward) & Dragging (Direct).
What's the maintenance history on this transmission?
Mileage?
How clean were the magnets?
Did you do one fill or several (drain & fill)?
Which fluid has been used?
Mileage?
How clean were the magnets?
Did you do one fill or several (drain & fill)?
Which fluid has been used?
Sonnax has a repair that saves the separator plate by adding a support plate, Though I replace the separator plate & add the support plate to keep my OCD in check.
Product information HERE
In this case I would do two more drain & fills, then another pan-drop after a week / month, to clean up the system. I would hesitate do anything else until the magnets stay clean. Cleaning up the system might be all you need but I would start there.
Was the little plastic plug in the bottom of the pan? That's an indication that the transmission was never opened up for service before.
My 2001 F150 (also a 4R70) had a torque converter drain plug. It was nice for servicing, but made me a bit nervous. The plug is very small and easy to over torque (strip) or leave too loose.
My 2001 F150 (also a 4R70) had a torque converter drain plug. It was nice for servicing, but made me a bit nervous. The plug is very small and easy to over torque (strip) or leave too loose.
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