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Old 02-28-2010, 10:47 PM   #1
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99 wrangler cold tick

I did a little more research on this tick I was having, it ticks louder when first starting the engine (keep in mind its cold out here in MN) As the jeep warms up the tick quiets down significantly and is only heard if your under the jeep. Any ideas?

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Old 03-01-2010, 12:04 AM   #2
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What you descibe sounds like a lifter. Change the oil and in place of one quart use a quart of Rislone. Use an oil rated for your Jeep and climate.

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Old 03-01-2010, 12:11 AM   #3
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What's Rislone? (off to google) And does this fix the problem, prevent more damage, or just mask the noise?
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Old 03-01-2010, 12:53 AM   #4
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Rislone is supposed to help free sticky lifters...I can't tell you exactly what it does or how it works so enjoy your Google search though...lol

I believe you can buy it at Walmart...or at least they used to have it there.

This was recommended to me by a friend's dad a while back as well...he's a manager at a car dealership and he said that's the first thing they try when they get vehicles in with sticky lifters.

If they're too bad, it won't help...but if they're just a lil gunked up, it will often free them back up.
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Old 03-01-2010, 12:57 AM   #5
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Would a lifter be able to be heard underneith the jeep? I keep falling back to the feeling that its a leaker in the manifold gasket as it was just replaced.
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Old 03-01-2010, 05:40 AM   #6
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Could very well be an exhaust leak but they are usually persistant and don't quiet down that much as it warms up.
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Old 03-01-2010, 10:58 AM   #7
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If it was a lifter you'd hear it up top, especially if you can hear it below.
Automatic or manual trans? If auto, could be the flex plate's cracked. But don't panic just yet.

Try a something first:
Most likely -- Exhaust leak - in a dark garage or at night - use a strong pencil beam flashlight and a little oil or carb cleaner, and a helper.
You go underneath, the helper shoots a little oil in the throttle body to make it smoke. Don't rev it - the fan will blow it around too much to find the leak.

While it's smoking, smoke will come out the exhaust leak - the strong pencil beam flashlight will illuminate the smoke so you can see where it's coming out. A regular flashlight or droplight illuminates too much, the pencil beam works great.

Some exhaust leaks get "less worse" as it heats up (crack closes due to expansion), some get worse.
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Old 03-01-2010, 11:14 AM   #8
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it is a manual, but on the exhaust leak, wouldnt the header expand when it gets hot closing up most of the leak?
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Old 03-01-2010, 01:01 PM   #9
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It depends on the leak - ya never know which way it'll go.

Heat can make something expand enough to close the leak reducing the sound, or it can expand and make the leak wider increasing the sound.

Do the flashlight/smoke test when it's the loudest, it'll be easier to find.

Don't rule out anything till you find it.
It's not necessarily a crack. It could be the joint where the header pipe attaches to the manifold, or a bad weld on one of the connections.

Or - hopefully it's the above, but those manifolds are famous for cracking.
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Old 03-01-2010, 03:17 PM   #10
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I have a 99 4.0 and it does a very simmilar thing, mine is def an exhaust leak, I fixed it once but it cracked again so screw it. it does quieten down as it gets hotter, but seems to be getting worse and worse over time (thousands of miles I mean) . just like the last one did, my sugestion, drive it for now until you can't stand it, then fix it (its a job to replace) and there's a good chance your next one cracks too...
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Old 03-01-2010, 03:45 PM   #11
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I have done the replacement header about 2 months ago. I replaced it with a flex header to avoid cracking.
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Old 03-01-2010, 04:57 PM   #12
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New doesn't mean it's not cracked already.
New doesn't mean it's seated properly against the head.
New doesn't mean it's not cracked next to the cat or muffler.
New doesn't mean the headpipe to manifold isn't leaking.

All new really means is you spent money and labor on it.

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