Question about 1994 Nissan Pickup
Allowing a vehicle to set can cause several problems. The most obvious would be that the fuel system collects varnish deposits as the fuel ages. Some injector cleaner additive for the fuel tank and a fresh tank full of gas may work wonders for your fuel mileage. The fuel pump making noise after the engine is switched off??? Are you sure it's the fuel pump? I guess it could be that the fuel pump has collected some varnish on its impeller or if your vehicle is equipped with a surge valve/device inside the fuel tank, the rubber diaphragm inside the surge valve may be ruptured and causing the weird sound. This will not normally affect engine operation. The surge valve is mostly for absorbing vibrations in the fuel lines to reduce noise from the fuel pump. They can cause problems however, if they are the design that can leak fuel internally back into the tank if the diaphragm ruptures. (Some can do this, and some can't - the main symptom will be low fuel pressure) Also, keep a close watch for oil leaks and coolant leaks. Vehicles that are not operated for long periods of time often experience leakage problems when put back into service. This is due to the rubber parts like seals, O-rings, and hoses that harden and crack from lack of use.
Posted on Mar 12, 2011
16mpg ?? you kidding me or what at 10 dollars a gallon i couldnt afford to run it thats for sure ,would have to be a diesel with at least 50mpg before i would give any vehicle house room ,Any way thats my rant over and back to your problem ,what happens is when something is left standing for any lenght of time the fuel goes stale in the tank and the pump clags up with gungy fuel so i would be inclined to drop tank and clean it out and renew the pump ,pay particular attention to the gause filter on the bottom of the pump .Then see what happens but i do fell this would help to cure your problem
Posted on Mar 12, 2011
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Posted on Jan 02, 2017
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