Ford F-150 / 250 / 350 / 450:

TRANNY SHIFT HI RPM

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# 1  3/15/2011 1:07 AM

waggoner
New member
From: Wichita, KS
Registered: 3/15/2011
Posts: 1

TRANNY SHIFT HI RPM

INSTALLED 94 F150 tranny in 88.trouble shifting?

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# 2  3/15/2011 1:43 AM

TechHelp2
Administrator
Registered: 11/24/2009
Posts: 1305

Re: TRANNY SHIFT HI RPM

Make sure you have vacuum to the vacuum modulator. Check the hose for any leaks.

Check and make sure that the modulator is functional.

Make sure the shift cable is connected inside the transmission and at the throttle linkage; and not broken.

Make sure the cable is adjusted properly.

If it all checks out then have someone put a scanner on the truck to see if there are any transmission codes.


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