any recent maintenance; or do you have maintenance due/past due other than what you've identified?
Quick hits:
* IAC replace/clean
* Fuel Filter
* Air filter
* MAF Dirty
* Vacuum leak/s
* PCV valve/line
those codes surely aren't good and can exacerbate any condition as the PCM tries to compensate.
Nicely done!
Q: have you noticed any change in oil pressure; deduce you have a gauge?
Q1: Do you alternate when you change filters now, or both at once and an extended periodicity?
Last, have you ever considered adding magnets to the bottom of your filters?
Original owner '97 Eddie Bauer 5.4L 4X4:
*I ran the OEM Goodyears (P265/70R17) until nearly 76,000 miles.
*second set was Michelin LTX M/S to 142,000 miles (best rated/ride quality at the time based on Tire Rack). Independent dealer w/military discount.
*third set was Michelin LTX M/S2 (top pic)...
IMHO, ying or yang. My trans was completely serviceable/useable, thus only pulled the motor for passenger head replacement & rebuild after spitting a plug so driveline not manipulated.
it could go exactly opposite if your trans is the culprit.
different model year, but my rear bags dropped due to the air union coupler failing which is under the master cylinder as I have four-corner load leveling suspension. part number here if it helps: Ford # 2L1Z-5B322-AA
I also replaced compressor due to catastrophic failure, and rear bags...
different model year, but passing on my experience:
used a 1/2 in ratchet and tapped with a rubber mallet to loosen on my '97 differential when I changed it back in '12.
also suctioned it out vice removing the diff pan bolts.
don't forget friction modifier if you have the LS rear, and I used...
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