please help 4.0 runs bad
Thread Starter
Junior Member
Joined: Jul 2011
Posts: 94
Likes: 0
From: ofallon mo
Year: 1997
Model: Cherokee
Engine: 4.0 inline 6
please help 4.0 runs bad
i have a 97 jeep cherokee sport with the 4.0 and i just did cap plugs wires and rotor and put it on a scan tool it said tps voltage low so i put a new one on and it still runs bad when you drive it it doesnt missfire but when you get on the gas it starts to miss and sputter then when you let off it almost dies any ideas ?
Senior Member
Joined: Jan 2011
Posts: 957
Likes: 2
From: Russellville, Arkansas
Year: 1991
Model: Cherokee
Engine: 4.0 I-6
I'd start by checking and cleaning all of your grounding points. Just search on here for "ground refreshing." Bad grounds can provide for some weird problems.
Thread Starter
Junior Member
Joined: Jul 2011
Posts: 94
Likes: 0
From: ofallon mo
Year: 1997
Model: Cherokee
Engine: 4.0 inline 6
i guess the computer could have a bad ground i washed off my engine and the next day it started running like crap so i thought i had water in cap but it was all dry
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