So, I think I need a new head.
06-07-2013, 12:13 PM
#1
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Year: 2000
Model: Cherokee
Engine: 4.0
So, I think I need a new head...nope, ENGINE.
Here's the situation...
2000 Cherokee
155k miles
Clean oil, no major loss of antifreeze that I can tell.... but there is the head 'ticking/knocking' and 10psi at idle and this under the cap:
So I'm thinking I should start looking for a new head..... Where should I start? Ebay.. specialty shop? Junkyard? What specific head should I look/ask for?
TIA
2000 Cherokee
155k miles
Clean oil, no major loss of antifreeze that I can tell.... but there is the head 'ticking/knocking' and 10psi at idle and this under the cap:
So I'm thinking I should start looking for a new head..... Where should I start? Ebay.. specialty shop? Junkyard? What specific head should I look/ask for?
TIA
Last edited by Tony_SS; 06-08-2013 at 08:57 AM.
06-07-2013, 12:27 PM
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Year: My Jeep is a GMC
"no major loss of antifreeze that I can tell" (?)
clarify that^
Borrow a cooling sytem pressure tester and see if the system holds.
Check the oil pressure with a mechanical gauge.
Regardless, a new head won't cure the oil pressure/knocking problem, thats what new engines are for.
clarify that^
Borrow a cooling sytem pressure tester and see if the system holds.
Check the oil pressure with a mechanical gauge.
Regardless, a new head won't cure the oil pressure/knocking problem, thats what new engines are for.
06-07-2013, 12:51 PM
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Year: 2000
Model: Cherokee
Engine: 4.0
Well that's not good...
Ok, where does one start looking for a new engine.. or should I have this one rebuilt and put a new head on it?
Ok, where does one start looking for a new engine.. or should I have this one rebuilt and put a new head on it?
06-07-2013, 01:53 PM
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Year: 1998 Sport
Model: Cherokee
Engine: 4.0
"no major loss of antifreeze that I can tell" (?)
clarify that^
Borrow a cooling sytem pressure tester and see if the system holds.
Check the oil pressure with a mechanical gauge.
Regardless, a new head won't cure the oil pressure/knocking problem, thats what new engines are for.
clarify that^
Borrow a cooling sytem pressure tester and see if the system holds.
Check the oil pressure with a mechanical gauge.
Regardless, a new head won't cure the oil pressure/knocking problem, thats what new engines are for.
Also do a compression test on each cylinder. When you say you only have 10 psi, Is the you oil pressure?
06-07-2013, 07:22 PM
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Year: 2000
Model: Cherokee
Engine: 4.0
Well, I wanted to see what the Jeep had so I stepped on from a stop and BAM! And then there was smoke.. I pulled over and shut it off... had it towed home. There's nice size hole in driver side of the block. My buddy said the wrist pins go bad... but I'm thinking that was my knock... now the whole block is toast.
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06-07-2013, 07:34 PM
#8
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Year: 2001
Model: Cherokee
Engine: 4.slow
Solves your question. Time for a new motor. I have a good block in this 01 parts jeep in my garage.
Last edited by XJGunny; 06-07-2013 at 07:41 PM.
06-07-2013, 09:09 PM
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Year: 2000
Model: Cherokee
Engine: 4.0
Can I use *any* 4.0 engine in my 2000? or does it need to be specific to a 00-01 Cherokee?
I found another long block locally. Says there's a knock and it needs main bearings.. would it be worth it to pick that up and have it rebuilt? Price seems right at $175...
I found another long block locally. Says there's a knock and it needs main bearings.. would it be worth it to pick that up and have it rebuilt? Price seems right at $175...
06-08-2013, 08:53 AM
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Year: 2000
Model: Cherokee
Engine: 4.0
But everything I see has all kinds of miles and is at least $1000... so I dont want to spend the labor to drop in another high mile engine.... I want to put in a rebuilt one.
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