Cranks but wont start

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Nov 21, 2015 | 10:24 PM

Clynch916

Thread Starter

Newbie

Joined: Nov 2015

Posts: 1

Likes: 0

Model: Cherokee

Cranks but wont start

I have a 2001 grand jeep cherokee Loredo 4.0 L6. I need help understanding why the jeep will crank but not start. I have no check engine light on and i had a diagnostic test ran on it and the shop couldn't find any issues either. To me it sounds like a simple issue to fix but i cant seem to find the reason it wont start. Does anyone have any ideas or know what the cause of it not starting may be?

Nov 22, 2015 | 01:44 AM

freegdr

CF Veteran

Joined: Mar 2010

Posts: 47,923

Likes: 38

From: Broward County Fl.

Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

Gotta have spark,air and fuel.

Nov 22, 2015 | 07:16 PM

dave1123

Old fart with a wrench

Joined: Nov 2010

Posts: 14,398

Likes: 741

From: Manlius, east of Syracuse, NY

Year: 2000 XJ Sport & WJ Laredo

Model: Grand Cherokee (WJ)

Engine: 4.0L

Welcome to CF!

Check the CPS for a pulse. If the PCM doesn't get a reference pulse, it won't energize the ASD relay and turn on the fuel pump, spark and fuel injectors.

Last edited by dave1123; Nov 22, 2015 at 07:19 PM.