88 jeep cherokee 4.0 engine issues need help
#31
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 19
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
LITTLE BALL, LONG GREEN, TEE YOUR WHITE BALL.
Light Blue, Light Green, , Tan, Yellow, White, then Black are the injector wire color codes .
If you know the pair in the middle is right, you only need to check one on each end.
Light Blue, Light Green, , Tan, Yellow, White, then Black are the injector wire color codes .
If you know the pair in the middle is right, you only need to check one on each end.
#32
Senior Member
Joined: Mar 2010
Posts: 855
Likes: 1
From: Southern California
Year: 1989 Laredo
Model: Cherokee
Engine: 4.0 Inline 6 Renix
My '89 has always had issues running smooth. One day I have to replace all 6 injectors, the next my exhaust manifold cracks, followed by the injector wires needing to be replaced. Everything adds up to the damn thing not running tip top. These cars are for people who LOVE jeeps and LOVE working on them every weekend, because that is what you will be doing.
#33
Senior Member
Joined: Nov 2014
Posts: 603
Likes: 0
From: Hacienda Heights
Year: 1990
Model: Cherokee
Engine: 4.0
My '89 has always had issues running smooth. One day I have to replace all 6 injectors, the next my exhaust manifold cracks, followed by the injector wires needing to be replaced. Everything adds up to the damn thing not running tip top. These cars are for people who LOVE jeeps and LOVE working on them every weekend, because that is what you will be doing.
#35
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,565
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
#36
Senior Member
Joined: May 2012
Posts: 925
Likes: 5
From: Fort Erie, CANADA
Year: 1987
Model: Cherokee
Engine: 4.0
My '89 has always had issues running smooth. One day I have to replace all 6 injectors, the next my exhaust manifold cracks, followed by the injector wires needing to be replaced. Everything adds up to the damn thing not running tip top. These cars are for people who LOVE jeeps and LOVE working on them every weekend, because that is what you will be doing.
I often wonder what the XJs were like new (first 5 years) as far as reliability. I would think they must have been great.
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