Shifting problem?? Need some help...

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Sep 23, 2005 | 05:01 PM

Bowcop

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From: Blaine Wa

Shifting problem?? Need some help...

I have an 01 SD 250 with the 5.4 auto tranny...

The last few days it has been shifiting erradicly(sp) I will be going along at say 35 mph turning about 1500 rpms and it will suddenly shift down with no increase in throttle from me..

What gives??? Do I have a sensor problem or something else.

The only thing I have done to the rig in the last few weeks was put a differant exaughst system on it.

PLEASE ADVISE!!!

Thanks all,

Tim

Sep 23, 2005 | 05:11 PM

FortyFords

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Chk the wiring to the VSS sensor mounted on the rear diff,you might have disturbed it.
or it maybe going bad .

clean the dirt off around the area before removing,you don't want any of that dirt falling into the gear area.
Rich

Last edited by FortyFords; Sep 23, 2005 at 05:13 PM.

Sep 23, 2005 | 05:14 PM

Bowcop

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From: Blaine Wa

Thanks Rich,

Is that the only sensor on the rear diff? Is there anything I should look for besides the obvious? (unplugged, ripped etc)

Sep 23, 2005 | 05:18 PM

FortyFords

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Besides the obvious broken wires loose connection.no but if you pull the sensor out of the rearend and it is covered in gray particles of metal think about a fluid change soon.you can get a new sensor pretty cheap! might as well have one in your hand before removing.
Rich

Sep 23, 2005 | 05:22 PM

Bowcop

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From: Blaine Wa

Thanks Rich, I will check that..

Is there anything else that I should check?

Last edited by Bowcop; Sep 23, 2005 at 05:26 PM.

Sep 23, 2005 | 05:37 PM

Bowcop

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From: Blaine Wa

Man, how do you unplug that thing???

I want to make sure I am looking at the right plug. In the front center of the rear diff is a black flat plug that has wires in it that go to the front of the truck. Am I on the right one?