I got this truck it runs great but once the fuel filter lights some on it dies, here is what I have done, new fuel pump, new fuel lines. New fuel filter, new gas tanks, new selector valve on frame, new switch on dash, only thing I have not done is ICP sensor fixing to change it tonight plzs give me ideas what it could be
I only have one tank on it at the moment, I took the back tanks back down and I have bypass the selector valve and see dose the same and I'm sitting on over 1/4 of a tank on front
You can use a pencil type air pressure gauge on the Schrader valve on the side of the filter housing. Just wrap a rag around it to keep from spraying diesel all over. You should see close to 50 psi +.
You can also check with parts stores and see if they have a fuel pressure gauge in their rent a tools.
Did this just start or was it happened before your other problems?
On the fuel pump, I have seen them bad right out of the box if it is a rebuild
I bought a new fuel pump I thought was it but I took one off a running truck and still dose it, I even changed out the fuel filter housing, I'll check around for a gage
If this is the same poster that I just read about on another forum, his problem was a broken fuel strainer inside the fuel tank. It had disintegrated and was clogging the fuel line. The fuel filter light was signaling excessive vacuum due to the restriction, which is its mission in life. A new fuel strainer (or two) in the tank(s) fixed the problem, at least for that poster on that other forum.
I am relating this because it can be helpful to future readers.
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