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Aug 28, 2015 | 01:44 PM

Scott Medina

Thread Starter

Newbie

Joined: Aug 2015

Posts: 1

Likes: 0

Model: Cherokee

jeep

i have a 2003 jeep grand cherokee 4.0 hard to start put in new fuel pump crank sen cam sen sprak pluges it takes about 4 to 5 cranks to get it to run feul eccon 9 miles to the gallon

Last edited by Scott Medina; Aug 28, 2015 at 03:07 PM.

Aug 28, 2015 | 02:53 PM

zjWaggy

Junior Member

Joined: May 2015

Posts: 49

Likes: 0

Year: 1993

Model: Grand Cherokee

Engine: 5.2L

jeep

We're gonna need a bit more of a descriptive explanation...

Aug 28, 2015 | 05:43 PM

JPXJMOAB

CF Veteran

Joined: Jan 2015

Posts: 2,152

Likes: 7

From: Minnesota

Year: 1999

Model: Cherokee

Engine: 4.0L

jeep

4-5 cranks isn't unusual for a 4.0. Does it idle fine? Have you replaced plug wires?

Aug 29, 2015 | 12:35 AM

dave1123

Old fart with a wrench

Joined: Nov 2010

Posts: 14,398

Likes: 740

From: Manlius, east of Syracuse, NY

Year: 2000 XJ Sport & WJ Laredo

Model: Grand Cherokee (WJ)

Engine: 4.0L

No plug wires on a WJ 4.0. How did the plug insulator boots look? What plugs did you use? How clean is the throttle body? Check the MAP sensor for a cracked hose.