SOURCE: No fuel getting from fuel tank to fuel pump
It has a screen filter inside the tank that may have gummed up.If you drain the gas and look inside the tank,You will be able to see it.
SOURCE: 1989 ford f150 loss of power
1989 is fuel injected, on the intake there is idle air control valve, make sure this is not dirty, also you may want to check the coolant temperature sensor, if the engine thinks it is warmer then waht it is the fuel air ratio will be off and your truck will run bad.
SOURCE: 1995 Jeep Cherokee Country straight 6 cyl 4.0L: I
First of all, the fuel pump is generally located in the fuel tank, not always though. Yours probably is, in did not research it. The fuel electric fuel pump turns on only when the ignition key switch is turned to the start position and then left on. A series of one or two relays along with a pressure monitor in the fuel rail delivery system may or not cycle it on and off depending on design. Enough of that. I suggest that you remove the spark plugs to see if they are oil/heavy cabon deposits.If so, professional attention is reguired. One more thing you could try is replacing the spark plug wires. the may be old/worn out/damage. This would give the engine spark a stronger spark,if worn and also replace the spark plugs.
SOURCE: 1987 Chevy R10 project truck won't start
check the float on the carb is stuck shut not letting fuel in
SOURCE: 1987 FORD FULL SIZE BRONCO FUEL PROBLEM, SHUTS DOWN
The only way air can get in the fuel line is if you have a hole in it! Problem of course is were? I would run the fuel line from back to front and back again. Look for any wet spot that you can find. You may even have to drop the tank to ba able to look on top. I would suspect the problem is in the line before the high preasure pump, being as you are pulling air into the system. I have seen leaky lines allow air in, but not let fuel out.
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