Tj fuel pressure

csanderlin

Well-Known Member
Joined
Nov 2, 2009
Location
mocksville
I have 99 tj 4.0 been sluggish and decided check fuel pressure from test port and getting 25 psi while running from my understanding it post be 50psi
 
If I remember correctly, the earlier TJs ran a lower pressure than the later ones but I cant remember the exact number. I have an 05 and it is supposed to be 58 psi. 25 psi does sound a bit low.
 
Any one
 
sounded low to me, so I dug out my 99 XJ FSM...49.2 +/- 5 psi. Any lower, check for kinked hoses, etc, then check the fuel pump capacity, pressure, amperage draw.
 
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