idle and tranny issue | Ford Explorer Forums

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idle and tranny issue

Xeek

Explorer Addict
Joined
March 21, 2010
Messages
2,868
Reaction score
20
City, State
Virginia Beach, VA
Year, Model & Trim Level
1991 xlt
ok, my tranny lsot OD in december, i just use the other D on the shifter.

i got to work, put it in reverse to back up into a spot and my rpm jumped to 1.3k and i had nothing and i heard whirring. no other gears worked after that.
turned it off and back on after a minute(sitting in the middle of the parking lot) and it would clunk into reverse and drive but i had nothing when i gave it gas. and my idle shot back up to 1.3k. so i left it in park and it would go from 800 slowly up to 1.3, dip back down, and repeat. i finally got it to get reverse and back into the spot, drive worked again to, but the idle continued to do the 800-1.3 thing

and a normal thing at lights, ill sit there and the rpm will dip from 650 to 500 over and over 5-8 times, the voltmeter will dip with it(stock and an aux meter) ~14 down to ~12. then itll settle right out and be fine.
after about 9miles of driving ill get a 41, engine is lean CEL.



i know the tranny needs replacing/rebuilt. but the idle issue and the idle causing my tranny to act up doesnt seem like a tranny issue.

i was suggested to clean the IAC, i had already done that before tho. i prob screwed it up even more when i did. i think my best bet is to try a new one? TPS is new also
 






did it again when i went to lunch. parked (still in D tho) and it shot to 1.3k but i could still move being i had not switched gears yet. as soon as i did R i got nothing except i rolled some. off and back on again, nothing. managed to rev to 2.5k to roll myself forward again into the parking spot. idle sat at 1.3k and didnt move.
seems like a warm issue? i have no trouble when starting after a few hours, or my lunch hour. besides the normal waiting for my tranny to get flowing before going into gear from park.
 






again today. it stays around 850rpm in drive at lights, should be 600rpm. and as soon as i shift to anything else besides 1 or 2 it jumps to 1.3rpm.

another thing, i got home and shifted to park and it went to 1.3 and i popped the hood and it sounded like something was rattling around inside the engine or valve covers. it does NOT sound like a lifter tick. it does do that too, but this is a completely different sound.


so far this has never happened completely cold. its always been after atleast 5 miles
 






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