FUEL PRESSURE PROBLEM

1994 Jeep YJ

Tiny

crowman

January, 30, 2011 AT 12:01 AM

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

FOUND 1935 RELATED QUESTIONS

3 Answers

Tiny

Wrenchtech

January, 30, 2011 AT 12:15 AM

That's indication of a bad regulator.

Tiny

crowman

January, 30, 2011 AT 12:20 AM

Wich regulator just put 1 on the fuel rail still doing same thing

Tiny

Wrenchtech

January, 30, 2011 AT 12:23 AM

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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