Question about 1990 Ford F150

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I have a 302, it has spark it has fuel pressure and it runs when i dump gas in the intake however it will not stay running

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  • brooks3834 Sep 28, 2009

    fuel inj.

  • drallim May 11, 2010

    Does this engine have a carburetor or fuel injection ( multi-port or throttle body)?

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If it has multi-port injection, the fuel pressure at the test port on the fuel rail above the injectors should be about 35 to 40 PSI. If it is a throttle body type, the pressure at the throttle body should be about 15 PSI. If the ignition is a self-contained distributor, then a possible fault in the injector system is a bad crankshaft or camshaft sensor. Either one can stop the computer from firing the injector(s). If you have the check engine light on, rent a scanner, read the code(s), and pursue to repair(s).

Posted on Sep 29, 2009

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If you've gotta dump more gas in it than it should be getting, it may have a large vacuum leak

Posted on Sep 28, 2009

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