00 XJ want to replace sensors ect

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Jan 13, 2019 | 06:21 PM

NateX

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Joined: Sep 2018

Posts: 5

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Model: Cherokee (XJ)

00 XJ want to replace sensors ect

I have a 2000 XJ with well over 200k I know the motors are bullet proof. However, I have to replace the head gasket, nasty white crap. With income tax season coming up I want to put a couple hundred into the motor. With sensors I don’t know much about. With that said can y’all guide me on what I should replace/upgrade? Any other suggestions on what I could do? I understand the fuel injection upgrade and plan on that. Basically just a mini refurbish haha. I will also continue to browse, I just don’t know what to really search for, thanks.

Nate

Jan 13, 2019 | 06:36 PM

tjwalker

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Joined: Nov 2010

Posts: 5,840

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From: In the middle of Minnesota!

Year: 1999

Model: Cherokee

Engine: 4.0

Are you having to add any antifreeze to your coolant reservoir?

How do you know the headgasket is bad? Have you run a compression test?

What do you mean by "nasty white crap". Is that on the oil filler cap?

There is a known cylinder head defect with the 00-01 XJ. Not saying that is in play here, but that is why I asked the above questions.

Last edited by tjwalker; Jan 13, 2019 at 06:41 PM.

Jan 13, 2019 | 06:53 PM

NateX

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Newbie

Joined: Sep 2018

Posts: 5

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Model: Cherokee (XJ)

It definitely needs a head gasket, runs terrible, smokes and the oil is milky, yeah there is a nasty white oily stuff on the cap and on the head, I bought it like that it was only $400. it’s been sitting, ive been fixing body damage. I more less just want to replace known issues and upgrade parts, give it new life. I will have the head machined and checked out for sure.

Last edited by NateX; Jan 13, 2019 at 06:55 PM.

Jan 13, 2019 | 07:21 PM

Turbo X_J

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Joined: Sep 2009

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From: ☼ Blackhole Sun

Year: My Jeep is a GMC

Do yourself a favor and perform a compression test before making any long range plans, if you don't have one you can rent a gauge at most auto parts stores.

Jan 13, 2019 | 07:23 PM

tjwalker

CF Veteran

Joined: Nov 2010

Posts: 5,840

Likes: 117

From: In the middle of Minnesota!

Year: 1999

Model: Cherokee

Engine: 4.0

That head must be checked out for cracks. If it is cracked and coolant has been running through the engine for more than a short time, that trashes engine bearings very quickly, and then you would have bigger issues. Keep that in mind as you proceed.