4.0 to 4.0 HO swap
Can someone please help. I have a 1990 Cherokee with the Renix motor and I want to put a 1993 HO in it. I am going to change the wiring harness and ECU/PCM along with fuel lines and fuel sending unit that are from an HO. I need to know if there is anything else I need to swap over? I do not need info on swapping an HO in with the Renix manifold and wiring harness. I am doing the whole HO and wiring harness swap so do not even mention any Renix parts.
I have been searching through threads to find all the info I have now but am just covering all my bases.
I want to hear from people have DONE THE FULL SWAP ONLY PLEASE! That is the wiring harness and engine from a HO Cherokee and everything they swapped over like gauges etc.
If youre going to be a smart*** please proceed to another thread
thanks guys
I have been searching through threads to find all the info I have now but am just covering all my bases.
I want to hear from people have DONE THE FULL SWAP ONLY PLEASE! That is the wiring harness and engine from a HO Cherokee and everything they swapped over like gauges etc.
If youre going to be a smart*** please proceed to another thread
thanks guys
Newbie
Joined: Jun 2016
Posts: 13
Likes: 1
From: Carson city
Year: 1993
Model: Grand Cherokee
Engine: Golen 4.6L Stroker I6 (310hp)
Easy way best way. 93 HO ZJ to 4.6 Stroker. Injector adapters to 2000 intake that's it.
Last edited by jeepin89701; Jun 27, 2016 at 02:57 PM. Reason: none
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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CF Veteran
Joined: Nov 2008
Posts: 7,874
Likes: 100
From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
i have a 95 motor in my 90, but not the HO harness.
i don't think you can successfully switch it to HO very easily if not at all.
i don't think you can successfully switch it to HO very easily if not at all.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
CF Veteran


Joined: Nov 2017
Posts: 2,478
Likes: 275
From: Southern Texas (former AZ & Aus)
Year: 1999
Model: Cherokee(XJ)
Engine: I6 4.0L
I figured it was safer and "cleaner" for the forum to revive this thread then to start a new one on the same topic.
I've been eyeballing the net for a detailed full vacuum diagram for my 99 XJ with the 4.0. I want to get a roll of replacement tubing and just do the whole darn thing... 20 years old and if I've got a leak somewhere, well... all the rest of those plastic/rubber lines are the same age.
Anyone know where to track this down?....that is detailed enough to go off of?
I've been eyeballing the net for a detailed full vacuum diagram for my 99 XJ with the 4.0. I want to get a roll of replacement tubing and just do the whole darn thing... 20 years old and if I've got a leak somewhere, well... all the rest of those plastic/rubber lines are the same age.
Anyone know where to track this down?....that is detailed enough to go off of?
CF Veteran




Joined: Sep 2017
Posts: 1,560
Likes: 307
From: MO
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0



