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is it the input or the output sensor?

979 views 4 replies 2 participants last post by  misterwabbit 
#1 · (Edited)
if the trans goes into 2nd gear limp mode on random startup or drops out of gear when rendomly driving it is it the input or the output snesor that is failing? according to this thread its the input sensor.


http://www.dodgeintrepid.net/50-sec...what-limp-mode-what-tranny-speed-sensors.html


i need to confirm which. i actually meant to order the output sensor at NAPA but actualyl got the input one. or is that what i need? input closer to engine and the output farther in rear right?

speedometer works but is a little choppy when accelerating up. always. a little but bouncy sort of, when moving higher.

sometimes when i go to drive it after a start up its already in limp mode. it used to just drop out of gear totally while driivng randomly. it quit doing that though. '93 42LE


also it often shudders intermittedly randomly and heavily while trying to up shift like its confused or doesnt know what to do exactly or something at a given speed. usually around 25 to 45 mph then its smooth fine after that
thx for anything
 
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#2 ·
well i just replaced the input one since thats what i ended up with and took it on an aggressive drive around town here a bit and well so far its great smooth no hint of any buck or shudder or confusion while upshifting but the real test will be 40 to 50mph acceleration to see how 3-4 gear shift goes.. hmm.. interesting so far though. wish i could fix reverse too hah.
 
#3 ·
You can "Fix" reverse by swapping out the transmission with a good one.
 
#4 · (Edited)
yeah well im not gonna do all that unless maybe Fwd goes out too. evne then i may never and may just scrap it finally. but anyways it looks like i need to replace the output sensor. it started bucking jumping shifting and speedo bouncing again. so yeah... output one is bad too.. it hasnt done the drop out thing in a long time but still once in a while goes to limp mode, a simple neutral rolling restart is the quick temp fix always,. im just trying to keep driving it til it blows up whenever. its way overdue as it is.. borrowed time for years already,, glad parts are cheap for it..

in three years its been up here ive only had to replace timing cover gasket, water pump, couple tires, front brakes, one cv shaft, battery, but really needs a trans and p/s pump or line, MAP sensor
 
#5 · (Edited)
ok finally got the correct sensor.. after two trips to the store i finally got the OUTPUT speed sensor. i dont know why when you tell them output they give you input one every time automatically... even when i came back again to exchange it for the output one they were like "i did give you the output one" no....... this is what happened the first time i tried to replace the output speed sensor a couple months back. its really crazy..


but here it is TSS100 and im about to put it in. today here in a bit.


finally after all this time and struggle.


wow..
 

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