Question about 1990 Ford F250

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1990 f150 w/5.8 FI motor, idles good, take on road, it boggs down

Starts and runs ok, when I press the gas petal it hesitates, when I take it on the road it boggs down bad, I checked the system and it shows a tps problem only. I have not changed the fuel filter, there is gas in the tank.

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Have you changed the tps? The tps is like a dimmer switch with the idle being the lowest setting and everything above that being progressively stronger. If the switch is bad it will not advance spark or gas flow.

Posted on Apr 23, 2009

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Posted on Jan 02, 2017

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