Question about 1985 Ford Crown Victoria
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How many thermal vacuum switches are there. You know what it controls,so you know which one it is. Got diagram on rad support or under hood??
Posted on Sep 30, 2010
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Posted on Jan 02, 2017
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The computer controls the injection of the fuel. If you look at the wiring diagram you will note the bottom 4 pins that are the negative and positive to the left and right injection. Atleast on my 1991 it is .Could be the ecm or computer is sending a false signal or not sending one at all. A sign of this is the fuel pump in the gas tank can be heard and will continue to run as if pressure in the fuel system is not building. Tthe truck want crank as if no fuel. When starter fluid is injected into the Throttle body the egine will start and run untill fluid is used up. It will keep running as long as fluid is added.
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