Question about 1988 Jeep Cherokee
1988 jeep larado 4.0 fuel injectedthats hard to start and after starting runs like it got a vacuum leak have to pump the fuel petal to keep running.
Take a can of parts cleaner and spay it around the throttle body to check for a leak and if it is not there then sprat it around were your vacum hoses are connected to the engine that is how i check for vacum leaks.
Posted on Sep 12, 2009
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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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