Rough shifting
06-30-2015, 04:46 PM
#1
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Rough shifting
My 1993 f 150 2wd has some rough shifting, shifting up and shifting down (when I let go of gas). It kicks harder sometimes then others, especially when I give it more gas. Before I go and look into new transmissions what could this be? Any advice will help. Thank you
07-01-2015, 08:32 PM
#2
Start by pulling codes to see if anything is stored.
Most sensors can be tested with a voltmeter and a little research (check out easyautodiagnostics.com)
A bad sensor can cause what you're describing to happen. Likely culprits - TPS, VSS, RABS - or PSOM can also cause shift problems.
Bad wiring or connections to any of those can cause erratic shifts.
Rule out all the electronics before you throw money at a transmission that you may not need to replace.
Most sensors can be tested with a voltmeter and a little research (check out easyautodiagnostics.com)
A bad sensor can cause what you're describing to happen. Likely culprits - TPS, VSS, RABS - or PSOM can also cause shift problems.
Bad wiring or connections to any of those can cause erratic shifts.
Rule out all the electronics before you throw money at a transmission that you may not need to replace.