Fuel pressure at idle?
Thread Starter
Seasoned Member
Joined: Jul 2011
Posts: 379
Likes: 2
From: New England
Year: 2000
Model: Cherokee
Engine: 4.0L
I was test driving a few Jeeps and noticed one at idle had 0(or slightly right above) fuel pressure. Is this normal? What does everyones Jeep have for fuel pressure at idle?
Senior Member
Joined: Dec 2010
Posts: 726
Likes: 0
From: Leadville Co
Year: 2000
Model: Grand Cherokee
Engine: 4.7
Pretty sure spec is just above 15 psi at idle. The one you drove very well could have a bad sensor too.
Sent from my Garminfone while fighting off ninjas
Sent from my Garminfone while fighting off ninjas
Junior Member
Joined: Sep 2009
Posts: 94
Likes: 0
From: michigan
Year: 2000
Model: Cherokee
Engine: 4.slow
^^ agreed. fuel pressure would need to be read with a gauge on the schrader on the fuel rail. fuel pressure on lates is 49 +/- 5psi. Oil pressure should be between 20 and 50 depending on rpm.
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