Question about 1989 Ford F 250
Has new plugs , wires , cap , rotor , alternator , tanks , sending units , filters , gas , fuel punp . timimg is not the problem either . When engine is cool it start with no problem but soon starts to idle erratically . the idle speed goes up and down as well as the engine shaking / running rough . When engine is hot , it has alot of trouble restarting ,even if you cut it off and try to restart immediately
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Posted on Jan 02, 2017
Check for any trouble codes in the engine computer, and have the fuel pressure tested. If it is throttle body injection. observe the spray pattern of the injector when it pulses. You should see a cone pattern of the fuel spraying down into the intake. If it drips, or appears anemic, the injector might be partially clogged. Try some injector cleaner in the gas tank.
Posted on Mar 03, 2012
I Have a 1999 ford f150 4.6 that back fires and is just running really ruff when idling alot of nack fire a sord of like a pulse going on what is my problem?
Posted on Oct 12, 2011
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