no spark on 88 4.0

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Feb 1, 2011 | 02:56 AM

bwb marc

Thread Starter

Newbie

Joined: Feb 2011

Posts: 3

Likes: 0

From: seattle

Year: 88 /88 / 89

Model: Cherokee

Engine: 4.0

no spark on 88 4.0

hello, i just picked up two more xj's and one of them i cant get spark on.
i have replace the distributor, plugs, wires. cap, rotor, and crank sensor.
also, i've swapped ecm and coil (with ignition module) from the runner to the not, put the parts from the non runner on the runner and it still runs.
still no spark!
what did i miss?
i have checked and i do have voltage to the distributor and the coil.
this things driving my nuts!! any help would be awsome!
thanks!
marc

Feb 1, 2011 | 04:27 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

http://www.filestube.com/537d2723635...ual-84-93.htmltps,map sensor,wiring harness or fuse/relay problem useing the trouble shooting section in a repair manual will help greatly

Last edited by freegdr; Feb 1, 2011 at 04:36 AM.

Feb 2, 2011 | 12:44 AM

bwb marc

Thread Starter

Newbie

Joined: Feb 2011

Posts: 3

Likes: 0

From: seattle

Year: 88 /88 / 89

Model: Cherokee

Engine: 4.0

got it! when i got the rig it didnt have a head on it, apparently the guy who removed the head took off all of the grounds from the back side of the block. and like a dumbass i never thought to look.

thanks though