Losing coolant in my 99
06-24-2016, 12:36 PM
#1
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Losing coolant in my 99
Opinions please (especially from Cruiser and Salad).
Found lots of coolant in my oil after noticing it was disappearing. Never overheated in the 10k miles and 18 months that Ive owned it, but got up to about 230 degree once in traffic.
Replaced the head gasket and changed the oil 3 times. My oil is still milk and im loosing coolant. I did not have the head checked for warping or cracks because I was quoted $240-400 for a magnaflux depending on needing new guides or more parts for the head during reassembly.
I have the option to swap in a used motor out of a 94 for $350 and my time plus gaskets and what not. Or I can take the head off and see what a shop says about it being warped or cracked.
I dont want to waste money, but I would really like to keep my engine original. It makes no noises, runs perfect, oil pressure is excellent. 1998 4.0 aw4, 202k miles.
Found lots of coolant in my oil after noticing it was disappearing. Never overheated in the 10k miles and 18 months that Ive owned it, but got up to about 230 degree once in traffic.
Replaced the head gasket and changed the oil 3 times. My oil is still milk and im loosing coolant. I did not have the head checked for warping or cracks because I was quoted $240-400 for a magnaflux depending on needing new guides or more parts for the head during reassembly.
I have the option to swap in a used motor out of a 94 for $350 and my time plus gaskets and what not. Or I can take the head off and see what a shop says about it being warped or cracked.
I dont want to waste money, but I would really like to keep my engine original. It makes no noises, runs perfect, oil pressure is excellent. 1998 4.0 aw4, 202k miles.
06-24-2016, 12:49 PM
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by XJwonders
Ok I ll keep my opinion to myself since u don't want it. If u change your mind, text me
I could also get a junkyard head and swap that on.
06-24-2016, 08:02 PM
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by salad
Doesn't sound good... I'd change the oil with something cheap and then do a pressure test of the cooling system and see if you can force it to appear. I take it yours is a real 1999 and not some bastard 0331 right?
I hate the idea of downgrading to a '94 block but I'm not sure how to tell which component is busted without getting a machine shop involved.Something tells me he doesn't have many minutes on his plan lol
I hate the idea of downgrading to a '94 block but I'm not sure how to tell which component is busted without getting a machine shop involved.Something tells me he doesn't have many minutes on his plan lol
I really want to keep it all original and its running perfect, just tons of coolant. I just changed the oil like 15 miles ago with rotella and MMO. Do you recommend just taking it to the machine shop and having them magnaflux and check for warping?
At this point im willing to spend the money on it because I want to keep the head.
And XJwonders didnt answer my call.
06-25-2016, 11:38 AM
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by salad
The reason I asked is that some people claim there exists a unicorn out there, a late-build '99 that has '99 everything but somehow got a 0331 head in place of a 0630. You don't have the coil bosses, right??Honestly I have no idea if there's anything in the block that would break and create that kind of leak. Any chance of finding another 0630? You can spend cash at the machine shop having the head checked but I think that the likelihood that it can be repaired is pretty low.What a jerk!Your 1991 will vary slightly, but start here: https://www.cherokeeforum.com/f51/th...eaning-179079/
06-25-2016, 09:30 PM
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by salad
Not really my suggestion, I have no idea. Hopefully someone with experience in this department will chime in for you!
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06-25-2016, 09:37 PM
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by XJwonders
he's busy dealing with someone who said the T word
Originally Posted by Basslicks
T...... bag?
06-25-2016, 09:49 PM
#12
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Been counting ammo.
T word is the Tractor word describing our beloved AMC 6 cylinder engines.
What's up?
Catch me quick before I ingest copious amounts of IPA to relieve the sore muscles I got hauling ammo cans and counting rounds, sorting etc.
T word is the Tractor word describing our beloved AMC 6 cylinder engines.
What's up?
Catch me quick before I ingest copious amounts of IPA to relieve the sore muscles I got hauling ammo cans and counting rounds, sorting etc.
06-25-2016, 09:50 PM
#13
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Year: 1990
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The "ask the question" thread can be hard to follow......
06-25-2016, 09:53 PM
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by cruiser54
Been counting ammo.
T word is the Tractor word describing our beloved AMC 6 cylinder engines.
What's up?
Catch me quick before I ingest copious amounts of IPA to relieve the sore muscles I got hauling ammo cans and counting rounds, sorting etc.
T word is the Tractor word describing our beloved AMC 6 cylinder engines.
What's up?
Catch me quick before I ingest copious amounts of IPA to relieve the sore muscles I got hauling ammo cans and counting rounds, sorting etc.
Didnt have the head checked out because the machine shop near me wants $200+ for a magnaflux.
I have an engine from a 1994 with 103k miles that I got just in case. I dont want to do an engine swap. My engine holds great pressure and makes no noises.
06-25-2016, 09:54 PM
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Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
My question is: swap the head for a used one from the junkyard, have my current head machined, or swap the motor(dont want to) ?
Do you think my head is just warped bad and can be saved, or is it just junk ?
Do you think my head is just warped bad and can be saved, or is it just junk ?