Thread: Engine Swap - '92 5.0EFI/AOD into '66 Ford F100....

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Originally Posted by randyr

is it possible to have a faulty or blocked shrader valve? I appear to have good pressure up to the line connection below the shrader valve. Tomorrow I'll pull the section of line with the shrader and test it for blockage, etc. Beyond that, I'm kinda clueless at this point....

I can't see how a schrader valve can block. They are just a form of valve port like your tire uses for air welded on the outer diameter of the fuel rail. When is the last time this engine ran? Did you hear it run before you bought the wrecked car? My son's Mustang had been sitting for a year or more, and we went through much of the same trying to get his going. Turned out that every injector was clogged with microscopic particles of rubber that the ethanol had attacked in the injectors themselves (and the in tank pump, too). He bought a rebuild kit and took them apart, carefully cleaned everything and reassembled them. Started on the first crank.