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Unread 01-21-2010, 09:48 AM   #1
allenoffroad
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Noise in motor

Hi Guys...& Gals

When I start my 90 Jeep in the morning I hear this clicking sound coming from the 2.5 engine. When the Jeep gets warm the loud clicking goies away. What do you guys think it is and what should I do?

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Unread 01-21-2010, 09:50 AM   #2
cormac827
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lol my jeep alwasy clicks. or ticks i suppose.
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Unread 01-21-2010, 09:55 AM   #3
RebuildRookie
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do the seafoam or mystery oil treatment in your crankcase. It usually is a lifter tick. Thats what I did and mine went away. I did the seafoam and when I changed the oil I put in mystery oil. Havnt heard it since.
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Unread 01-21-2010, 10:01 AM   #4
allenoffroad
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Where do I get seafoam and mystery oil?
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Unread 01-21-2010, 10:02 AM   #5
cormac827
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Quote:
Originally Posted by RebuildRookie View Post
do the seafoam or mystery oil treatment in your crankcase. It usually is a lifter tick. Thats what I did and mine went away. I did the seafoam and when I changed the oil I put in mystery oil. Havnt heard it since.


what is this treatment?mystery oil?
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Unread 01-21-2010, 10:08 AM   #6
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Originally Posted by allenoffroad View Post
Where do I get seafoam and mystery oil?
i know seafoam you can find at places like autozone
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Unread 01-21-2010, 10:15 AM   #7
SilverBullot
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Agree with Rebuild on lifter tap. Had the same problem a while back. Not a fan of throwing mystery crap through the Jeep so I replaced the valve lifters. Theyre around $5 a pop and relatively easy to replace.
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Unread 01-21-2010, 10:24 AM   #8
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My 4.0L sounds like a diesel. It has ever since I bought it. When I bought it had 150k now 10 years later with 295k it still runs strong.
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Unread 01-21-2010, 10:30 AM   #9
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Originally Posted by cormac827 View Post
what is this treatment?mystery oil?
Sorry, its marvel mystery oil. You can get it anywhere, even Dollar General. Works pretty descent, I think even Mean Max said he uses it every time he changes his oil

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Unread 01-21-2010, 10:32 AM   #10
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Originally Posted by SilverBullot View Post
Agree with Rebuild on lifter tap. Had the same problem a while back. Not a fan of throwing mystery crap through the Jeep so I replaced the valve lifters. Theyre around $5 a pop and relatively easy to replace.

That would have been my next step if this wouldnt have worked. Sometimes the lifters just get gunked up. I did this to save time and money. Didnt want to change it if I didnt have to.
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Unread 01-21-2010, 11:05 AM   #11
allenoffroad
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Thanks guys
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Unread 01-21-2010, 02:39 PM   #12
cormac827
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just pour where i add oil?
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Unread 01-21-2010, 02:42 PM   #13
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Originally Posted by cormac827 View Post
just pour where i add oil?
Ya but don't overfill. If your oil level is already where it needs to be, drain a quart before adding a quart.
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Unread 01-21-2010, 02:54 PM   #14
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cool! thanks!
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Unread 01-21-2010, 04:08 PM   #15
RebuildRookie
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if you use the marvel mystery oil, it will be o.k. to run it for a while until the next oil change. Just follow instructions on the bottle

If you do the seafoam, your gonna have to change the oil at about 100 miles to be safe. and seafoam is only 1/3 of the can in the crankcase. Just follow instructions on the bottle.
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