Is my TPS causing this issue
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Joined: Feb 2018
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Is my TPS causing this issue
I have a 1995. 5.0 F-150. I left it sit for about a year when it blew the center out of a spark plug. Apparently, in spite of the folder full of maintenance receipts from the previous owner, he had never changed the plugs. Anyway, I recently got it back on the road with 8 new plugs but it is not shifting properly any more. It revs higher than normal at idle, and will not shift until over 4500 rpm (I can force a shift if I feather the throttle around 3500). If I am on the highway running around 100 kpg (60 mph), the truck is revving over 3000. If I shift it into neutral at that speed, the engine speed only drops to about 2200. If I leave the truck in neutral, and bring it to a stop, the rpms don't drop to idle speed (less than 1000) until I have come to a stop. Gas mileage is obviously brutal. Some research leads me to believe the TPS could be at fault here. I would be interested to hear any thoughts on this. Thanks
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
Without testing it that is what I would try. The TPS went bad on my '94 F-150, it acted a bit different than that, but somewhat similar.
You can test the TPS if you want. If you replace the TPS, use only a genuine Ford TPS.
You can test the TPS if you want. If you replace the TPS, use only a genuine Ford TPS.
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