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Old 07-21-2013, 10:53 PM   #34 (permalink)
baldlobo
EcoModding Apprentice
 
Join Date: Oct 2010
Location: winterpeg, manisnowba
Posts: 211

clank - '99 jeep tj sport
90 day: 17.32 mpg (US)
Thanks: 9
Thanked 18 Times in 18 Posts
vago; where'd you get your fuel pressure from because everything i've read for every chrysler produced from 99 or earlier, on is suppost to be 49+/-5psi?

if your fuel pressure reg is actually getting 58+psi(you said 58psi over atmospheric so 72psi) you might want to replace/fix it; it might fix your problem

from a factory service manual

(4) If operating pressure is above 54.2 psi, electric
fuel pump is OK, but fuel pressure regulator is defective.
Replace fuel filter/fuel pressure regulator. Refer
to Fuel Filter/Fuel Pressure Regulator Removal/Installation
for more information.

Last edited by baldlobo; 07-21-2013 at 11:39 PM..
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