confussed on what sensor - Ford Powerstroke Diesel Forum

 
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post #1 of 8 Old 06-11-2012, 11:19 PM Thread Starter
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confussed on what sensor

i went to change trans fluid. the fluid was real dark almost like oil. i got the new fluid in. when i put it into reverse the rpms jump up as if i would hit the throttle but i am holding the brake. this bogs the engine down and stalls out. i put it in reverse and let it go to see how fast it would go. it got up to alittle over 6 mph. i did have a 94 gasser with similar problems. it was the tps. i cant find anything like this on my truck now. i dont have engine light on. while cold going down the road i did see that the rpms would flux. it never done that before. it also feels like it has a slight stall going down the road. would this be the tps, vss,idle sensor or pedal sensor.
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post #2 of 8 Old 06-12-2012, 12:05 PM
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Originally Posted by csorrells_2000 View Post
i went to change trans fluid. the fluid was real dark almost like oil. i got the new fluid in. when i put it into reverse the rpms jump up as if i would hit the throttle but i am holding the brake. this bogs the engine down and stalls out. i put it in reverse and let it go to see how fast it would go. it got up to alittle over 6 mph. i did have a 94 gasser with similar problems. it was the tps. i cant find anything like this on my truck now. i dont have engine light on. while cold going down the road i did see that the rpms would flux. it never done that before. it also feels like it has a slight stall going down the road. would this be the tps, vss,idle sensor or pedal sensor.
O/D Light blinking?

Find a good scanner and scan it.
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post #3 of 8 Old 06-12-2012, 11:39 PM Thread Starter
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after last night of 3-4 hours of searching and reading several different threads. i didnt realize that i posted this in the wrong area. i have 96 model.
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post #4 of 8 Old 06-13-2012, 02:52 AM
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Does it do the same thing in forward gears?? Sounds like the tc might be locking on you, this would cause the stall out. It usually happens in forward gears at the same time though...

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post #5 of 8 Old 06-13-2012, 08:43 PM Thread Starter
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when i am coming up at a red light. the truck seems to try keep going. when i make the stop the rpm is runing around 700 - 1000. sometimes it would stall out. when i crank it up and put it in reverse it wants to haul butt. if i hit the brakes to hard it would stall out. then when i put it in drive i have to hit the pedal to go somewhere unlike the reverse. before i changed the fluid it did not do this at all. the only problem i had was after back out of the drive way it would not go into drive. the od light does not blink

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post #6 of 8 Old 06-13-2012, 10:42 PM
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your tc is locking. you'll be looking at tranny work sooner rather than later.

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post #7 of 8 Old 06-13-2012, 10:49 PM Thread Starter
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would getting a new tc fix this or is the tranny going out
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post #8 of 8 Old 06-14-2012, 02:50 AM
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Originally Posted by csorrells_2000 View Post
would getting a new tc fix this or is the tranny going out
Tc lockup is provided by the tc lockup solenoid in the solenoid pack. I would scan for codes, check your harness really well, and or replace the solenoid pack...

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