5r55e nightmare | Ford Explorer Forums

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5r55e nightmare

cooldrool

Member
Joined
November 13, 2010
Messages
22
Reaction score
0
City, State
medford or
Year, Model & Trim Level
99
i bought a '99 sport 4x4 with pushrod 4.0 and 5r55e..white..with 160k..for a $1000..it needed a fender and hood from a minor accident..got that done with junkyard parts...everything is clean and works except the trans...it shifts into 5th then back to 4th alot..it also is a little schizo on other gears sometimes[shifting late or hard or early]...nothing major....i checked the TPS [because it was the only reciept included with the truck] and found it had the wrong one..it was turning the opposite way...got that replaced and the 5th/4th thing changed...it would stay in 4th most of the time.....testing it, i drove down the road a bit and got onto the freeway..stepped on it and it dropped into neutral..[revs flying]..i let off the throttle and it shifted...this was the start of this happening more and more...i took it to a mechanic because 1. i didnt have the space with 10 other projects going on and 2.my scanner innova scanner 1403 wont do trans codes...i check out all the forums to try and diagnose the problem and 2 things seem likely...the EPC solenoid and valvebody gasket so after a month over there ..i drop in to see the status of things....and they scanned it and thought the same things so they replaced 4 solenoids and the gasket..flush and filter too....but now its doing the same stuff again....he thinks it might be the pump........does anybody have an opinion? any help appreciated!....thanks
 



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i talked to my mechanic today and he says its not producing main pressure,...but if he knew that ..why did he replace all those solenoids...just guessing? i dont want to pay $700 for guessing!
 






you wouldnt believe this!...my tranny is fixed....they found that a battery draw through the spark plugs was screwing my tranny up!....new plugs and wires and it shifts great again....please tell me im not the only one!:splat:
 






never heard any such thing .
 






Spark plugs / Transmission? Horseshit...

He probable replaced the EPC solenoid.
 






well ...it figures....its now dropping into neutral randomly ..after it warms up and it shifts into 4th ... a few seconds later while cruising it does it....so something changed!...just not for the better
 






Another $200....replaced 2 speed sensors on the tranny and the dpfe sensor and still the same thing.....but it only happen when its warmed up.....about 30 minutes driving and randomly...i wonder if it electrical still or something internal
 






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