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Old 01-18-2013, 02:29 PM   #1
primer500's Avatar
Join Date: Jun 2012
Location: GR Michigan
Posts: 22
DIY motor replacement

Hi guys, just looking for some input on doing a direct replacement myself,well, with my boss who is way more mechanically inclined than myself. We plan on removing it on a Friday night and hope to get the new one in the next day on Saturday.

We will be using my Father-in-laws shop which will have all the necessary equipment we should need. I guess my questions to those who have done this is, what are some pitfalls i might run into or any tips or tricks that might be helpful.
Also, is it even possible to do it in this time frame?

Thanks for any feed back on this, it is greatly appreciated.
You guys rock!!!

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Old 01-18-2013, 02:38 PM   #2
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Join Date: Oct 2011
Location: Oregon City, OR
Posts: 5,415
2.5L or 4.0L?
Auto or Manual?

I would be sure to have a Service Manual on hand. Free download on

'99 Chili Pepper TJ - I4 PowerTech motor
33x12.5 DuraTracs
Zone 4.25"
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Old 03-22-2013, 01:57 PM   #3
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Join Date: Jun 2012
Location: GR Michigan
Posts: 22
Tonight we take it out!

It is a 4.0L direct replacement. So,i think it should be pretty straight forward.
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Old 03-22-2013, 01:59 PM   #4
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Join Date: Jul 2008
Location: NW, NJ
Posts: 4,034
Should be pretty simple as long as the engines are the same year and size.
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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Old 03-25-2013, 03:09 PM   #5
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Join Date: Jun 2012
Location: GR Michigan
Posts: 22

Well, all went pretty well but i did notice that if you ever replace the engine that came from a Cherokee there are some differences.

First issue i ran into was the motor mount on the drivers side has a different hole location. It was located about 1-2" further down. Also the valve cover relieve hose was completely different. There were some other issues, mainly with the accessories but over all it wasn't too bad.

Glad to have it back on the road!
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motor advice , motor swap , new engine , replace motor

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