Jeep Cherokee Forum

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-   MJ Comanche Tech. Stock & Modified. (https://www.cherokeeforum.com/f88/)
-   -   1989 mj (https://www.cherokeeforum.com/f88/1989-mj-248417/)

Jed Ellsworth Lancaster 12-05-2018 05:29 AM

1989 mj
 
I have a mj with a 2.5 and a 4.0 from an Cherokee 1991 I want to install it to my mj can I just drop it in and plug it in with the wiring from the 1991 and use the mjs from firewall back or will I need to do a full wire swap also and what else will I run in to doing this? Engine mounts fuel tank and what not thank you for any help on this topic

tinytrax78 12-05-2018 07:20 AM

you will need everything.... I mean everything .....and I think you would have to weld in new engine mounts so to put it short its a big job

XJwonders 12-05-2018 11:15 AM

Yep. Everything. Cause 89 & 91 had entirely different engine management system.

Jed Ellsworth Lancaster 12-06-2018 12:06 AM

Yeah
 
motor mounts are different? I have done a couple Cherokee 89 with 1996 guts but never Comanche......



maybe i should do that 4.7 Chevy vortex or just do the 350 swap if it’s all that I have a Cherokee with a 350 in it I think they used a 1988 v6 Cherokee body tho thanks for you help
https://cimg1.ibsrv.net/gimg/www.che...3c7bd4bdf.jpeg
https://cimg2.ibsrv.net/gimg/www.che...abfc7dfd1.jpeg

tinytrax78 12-06-2018 07:21 AM

yes engine mounts are in different locations on a 2.5 vs a 4.0

Jed Ellsworth Lancaster 12-06-2018 06:41 PM

So when you say
 
you said I will need to do some welding I have to cut the old ones off?

Jed Ellsworth Lancaster 12-08-2018 12:10 AM


Originally Posted by tinytrax78 (Post 3529312)
you will need everything.... I mean everything .....and I think you would have to weld in new engine mounts so to put it short its a big job

well they are bolt on no cutting no welding and jobs done I am wondering about the fuel pump are they the same or different


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