Ditto, `98-`01 is a 2.5L, but the same Lima basics.
That '99-'07 is an improperly attributed Duratec Engine, not compatible.
I'd look for a company that can figure that out...
2.5L uses 1/2 of a thrust bearing on the block side, and it appears to be a common failure; mine had .119" of endplay - only .107" out of spec.
But, the 2.5L has up to 3x the endplay of a 2.3L.
Mine was a ballooned torque converter.
If the MAF has failed, it reverts back to a Failed MAF table - it should throw a code and run like normal - but no "Learning".
I'd look at the voltage from the Throttle Position Sensor and make sure it is working and not "dropping out" during its sweep.
Fuel Pump
Fuel Pressure Regulator
Regulator is cheaper/easier, but not likely the problem.
How many miles?
When (if ever) was the pump replace (and with what)?
That being said - Look at the lower (and upper) intakes - on some swaps, the intake(s) need to be changed, and that makes other things complicated.
If you have a distributor, and late 2.3/2.5 head lower intake will not fit with the distributor/brackets/accessories of the early engine.
The HEADS...
Looking for images of the "DISA" mark, passenger side cyl #2.
Mine is 3 DISA, I have also seen 4 DISA...
Looking to get an idea of how many castings Ford was using..
Thx
4R44e on the 2.5L SOHC
5R44E on the 3.0L OHV
5R55E on the 4.0L SOHC
5R55E (with 6 pinion planetary gears) on 4.0L SOHC 4x4
But yes.
The key phrase is; You want to buy a "Core"
A used transmission requires a core exchange and may be returned.
A "Core" is just that, and is no return, no warranty.
Metric vs. Standard...
Also, what are you measuring WITH, and where are you measuring?
If you are using a standard Dial Micrometer, it is difficult to get a good reading on a used block due to the ring ridge.
4R44/4R55/5R44 are all downgrades.
BEST would be a performance built 4x4 A4LD - for reasons.
A 4x4 5R55E would be a good second choice, assuming you don't mind losing a gear (if you stay with the '94 PCM) or changing to an OBDII PCM.
I have been able to use a 4R44E as a 5R44E - but it required...
Crack in the cat/flange leak causes air to get sucked in, between pulses, and causes the O2 sensor to get bad readings - it can cause lots of problems.
I would change the O2, if it has been more than 75K since you did it last.
Prefer Motorcraft - if you can find them.
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