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Old 11-07-2014, 07:01 PM
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engine swap

Hello,
I am in the process of doing an engine swap on a 2002 Grand Cherokee Larado, 4.0 six cylinder. I am no stranger to a wrench, but have never swapped an engine before. We are about to pull the old engine out and put the newer one in. The old engine had 147k, and the new one has 130k. Are there any sensors that I should replace, or is there any insider knowledge that I should know that would make my life easier with the new engine? Also, where would I find the torque specs for this? I truly appreciate any help, thank you.

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Old 11-09-2014, 11:41 AM
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Re: engine swap

Torque? Pfff just good tight on tje engine mouts and bellhousing bolts. Everything else is plug play. The seals,gaskets fresh?
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Old 11-09-2014, 11:55 AM
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Re: engine swap

Here are the torque figures
Attached Files
File Type: pdf 4.0 torque specs.pdf (43.9 KB, 4 views)
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Old 11-09-2014, 10:48 PM
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Re: engine swap

If you don't know the condition of the crank position sensor, I would replace it with a new Mopar sensor (~$100). With the engine/tranny out of the vehicle, it's an incredibly simple change. With the engine/tranny in the vehicle, it's a PITA.
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Old 11-13-2014, 09:08 PM
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Re: engine swap

Man what a great topic as these vehicles are all gonna be fast approaching 200K miles. I just had one done in a '99WJ this last March, but facing a 4.0L swap (maybe, but maybe not) ANYWAYS, Is there any good reference material here?

I know the handful of components that are NOT included in a new/newly-rebuilt engine package and most are "plug and play", but other items such as the previously mentioned are NOT. It would be great to go into this level of DIY armed with the knowledge of what "should be" done while we got the whole damn thing out...?

Anyone got a great reference with a replacement tutorial for the 4.0 and/or 4.7?

Of course I've got the vague basics that most Chilton's/Haynes gives ya.
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Old 11-16-2014, 09:09 PM
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Re: engine swap

Down load service manual.
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Old 11-24-2014, 10:56 PM
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Re: engine swap

That is ALWAYS A GREAT IDEA. . . for ALL the vehicles you own and plan to service, however an engine "swap" is different than a direct replacement, by millions of miles...

I've differed to my local shop who builds all models in the blood line with various engines and maintains that it is always best to just find the original engine size, rebuilt (or new) and go from there. Unless you're dealing with a vintage build, of course.
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Old 11-28-2014, 10:41 PM
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Re: engine swap

I think he is just replacing like for like.

Not a cummins or hemi
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