sputters at 2000rpm
Thread Starter
CF Veteran
Joined: Dec 2008
Posts: 1,533
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From: eaton ohio
Year: 93
Model: Cherokee
Engine: 4.0
title says it all cps, tps, iac only a month or two old fuel filter brand new pulled fuel pump and all looks well, plugs are brand new, injectors are all working dont kno about clogged but i did run sea foam thru it and nothing different yet so im thinkin injectors need professionally cleaned or replaced, also thinking about the wire set the coil or the distributer, if you guys have any ideas or suggestions please let me kno asap
CF Veteran
Joined: Jul 2009
Posts: 2,158
Likes: 11
From: Chico,ca
Year: 89
Model: Cherokee
Engine: 4.0
Have you looked at your cap and rotor?look inside and see if there is anything that could cause this,like corrosion,carbon tracks,etc. I have had problems with cap and rotor on mine when it gets old.
They are so cheap just replace them and see if it helps.
They are so cheap just replace them and see if it helps.
Thread Starter
CF Veteran
Joined: Dec 2008
Posts: 1,533
Likes: 0
From: eaton ohio
Year: 93
Model: Cherokee
Engine: 4.0
the cap and rotor are pretty new thats why im leaning more towards fuel issues, i had pulled the injectors a while back and just cleaned them with what i had and wiped them down and it seemed to help with the problem then so im thinkin professional cleaning will do it but ill check the cap and rotor too
CF Veteran
Joined: Jul 2009
Posts: 2,158
Likes: 11
From: Chico,ca
Year: 89
Model: Cherokee
Engine: 4.0
I always have looked at issues that come up as a reason to buy more tools,just seems like the right thing to do. The other thing it could be is the cam position sensor in the distibutor,it works together with the cps to maintain timing and injector timing,02 sensor adjusts injector pulse width.
CF Veteran
Joined: Dec 2009
Posts: 1,260
Likes: 0
From: Alabama
Year: 1993
Model: Cherokee
Engine: 4.0
i had a similar problem (sputter at 2000rpms and with accelorator to the floor would almost die out) but mine was due to over heating and gas tank had trash in it. electric fan wasn't coming on so I straight wired it , removed and cleaned gas tank, and installed new fuel pump filter sock and fuel filter on rail and hasn't done it since. don't know if that is what's wrong with yours just thought it was something you could look into
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