FUEL PRESSURE PROBLEM
1994 Jeep YJ • 4 cylinder 4WD Manual •
94 jeep wrangler 2.5 mpi. keep loseing pressure .tested pump.putting out 39 psiif i clamp return line to tank got pressure run great pressure at around 90 psi as soon as i unclamp line bottoms out to 0 psi lustput pump in any thought signed FRUSTRATED
That's indication of a bad regulator.
Wich regulator just put 1 on the fuel rail still doing same thing
That's the one that's supposed to be holding it back. If you have 90 when it dead headed and good volume and 0 using the regulator, you have a bad regulator. Make sure you don't have the lines reversed although I don't think that can be done.
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