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00 XJ want to replace sensors ect

Old 01-13-2019, 07:21 PM
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Default 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 donít know much about. With that said can yíall 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 donít know what to really search for, thanks.


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Old 01-13-2019, 07:36 PM
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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; 01-13-2019 at 07:41 PM.
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Old 01-13-2019, 07:53 PM
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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; 01-13-2019 at 07:55 PM.
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Old 01-13-2019, 08:21 PM
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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.
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Old 01-13-2019, 08:23 PM
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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.
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