Question about 1990 Ford F150
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
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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Posted on Jan 02, 2017
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