Adjusting ignition timing on 4.0
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
None of the flywheels have timer marks. 
(OK, that you can see). There IS a mark in the "crank pulley" up front. (I call that a damper pulley...). And yea, the computer does the timing. "flywheels" are for manual tranny (with clutch), but most of us have a "torque plate", to connect our torque converter to the end of the crank. Ether way it's your CPS on the bell-housing that tells the brain when to spark the spark.
If you have a problem, and post your code, there are guys here who are pretty good at that. (and the year could be more clear)
(OK, that you can see). There IS a mark in the "crank pulley" up front. (I call that a damper pulley...). And yea, the computer does the timing. "flywheels" are for manual tranny (with clutch), but most of us have a "torque plate", to connect our torque converter to the end of the crank. Ether way it's your CPS on the bell-housing that tells the brain when to spark the spark. If you have a problem, and post your code, there are guys here who are pretty good at that. (and the year could be more clear)
Thread
Thread Starter
Forum
Replies
Last Post
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
28
Jan 8, 2025 11:36 PM
cherokeexj21
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
9
Jul 10, 2016 08:35 AM
03cheroke
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
2
Aug 27, 2015 06:07 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)