No Spark replace everthing

Reply Subscribe

Thread Tools

Search this Thread

Mar 29, 2013 | 08:06 PM

lilrinn1234x4jeep

Thread Starter

Newbie

Joined: Mar 2013

Posts: 3

Likes: 0

Year: 1989

Model: Cherokee

Engine: 4.0l str8 6

No Spark replaced everthing i could think of

i replaced the coil, pcm, distributor, cap and rotor ,crank sensor and tested the ecu and still no spark need help.....
89 jeep cherokee laredo 4.0l inline 6

Last edited by lilrinn1234x4jeep; Mar 29, 2013 at 08:20 PM.

Mar 29, 2013 | 09:04 PM

stang65

CF Veteran

Joined: Aug 2012

Posts: 1,592

Likes: 0

From: oregon

Year: 1993

Model: Cherokee

Engine: 4.0 ho 99 intake ps pump 1" tb spacer 62mm bored tb eletric fans and more

did you check to see if the ecus cps wire wasnt damaged. happed on my dads 89

Mar 29, 2013 | 10:09 PM

Bustedback

CF Veteran

Joined: Feb 2010

Posts: 12,367

Likes: 23

From: Oroville, CA

Year: 1995

Model: Grand Cherokee

Engine: 4.0 with all of the noise and clatter

Maybe do some diagnostic work before throwing parts at it. Do you have power and a pulsing ground signal to the coil? Have you checked the fuses?

Mar 30, 2013 | 12:34 AM

lilrinn1234x4jeep

Thread Starter

Newbie

Joined: Mar 2013

Posts: 3

Likes: 0

Year: 1989

Model: Cherokee

Engine: 4.0l str8 6

i check all the wires connection i rebuilt a motor and dropped it in i checked all the connections and wires fuses everything ... do you think i have to have the ecu you reset?