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Unread 05-13-2002, 01:47 PM   #1
A.S.
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Loud tapping sound

Sometimes I hear a loud tapping sound from the front of the engine around the belt assombly and fan. It happens in the mornings just when I turn the car on. It lasts for a few minutes untill the car warms up and it goes away or becomes very faint. What could it be?

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Unread 05-13-2002, 01:58 PM   #2
geepYJ95
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Maybe the fan is hitting the cowl.....when the engine just starts up maybe it is a little cold and vibrates.......
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Unread 05-13-2002, 02:00 PM   #3
sk8pr0
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does it speed up if you press the gas and RPM increases?

if it does then I would say it is the lifters not a big issue just annoying.
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Unread 05-13-2002, 11:03 PM   #4
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yah, it speeds up when I gass. Its always there, its just way louder when I just turn the car on.
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Unread 05-14-2002, 07:10 AM   #5
johny1i
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Mine is a case of a tapping lifter, and it is exactly as you described. Mine is the #5 cylinder and it has done that intermittently (but always when cold) for the 80,000 miles that I've owned the jeep. Doesn't get worse, and in fact it seems to have gotten better over the years. Get ready to pull apart the engine to fix it, though, if that's what it is--I'm going to wait until full rebuild time for that, though.
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Unread 05-14-2002, 08:05 AM   #6
PoorFool
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It's most likely lifter tapping. It really isn't an issue. If you don't like it, try going to a heavier weight oil. Check your manufacturers recommendations and bump it up one weight. Don't go over 10w-40 though. That tends to quiet up older engines as it will fill the gaps created by wear.

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Unread 05-14-2002, 12:41 PM   #7
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If you have 100,000 miles or more, you can safely run 20W-50. I run it in all my vehicles when they reach 100,000, regardless of engine size or vehicle. I've never blown and engine all these years, they run well past 200,000-250,000 before I evben think about selling them. <img border="0" title="" alt="[Wink]" src="wink.gif" />
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Unread 05-14-2002, 07:22 PM   #8
FLHT_FXRS_YJ
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Don't run junk oil filters!!!!!! This can be a major cause of premature engine failure and the ticking you hear at startup is an indication something is going wrong with lubrication,
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Unread 05-14-2002, 08:20 PM   #9
PoorFool
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FLHT is right about the oil filters.

To each his own regarding the 20W-50 though. I've never tried it, but have always heard that newer engines (yours is teetering on new/old line) have such close tolerances, that too heavy of oil can hurt them. Also, they don't over-buld them much, so the ancillary equipment may not handle the extra force/pressure created by heavier oils. I'd check with a mechanic you trust.

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Unread 05-15-2002, 09:39 AM   #10
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Yeh, that is why I don't use 20W-50 until 100,000 miles. By that time, there is plenty of wear internally. Until then, I use 10W-40. I would personally never use 5W or 0W, might as well use tap-water.

As far as filters, I would NOT use FRAM. I blew internal diaphrams 3 times in a row until I switched brands. When the internal diaphram blows, your oil pressure goes to 0. The diaphram helps hold the oil under pressure, without it, the oil won't flow where it needs to. A friend of mine worked as an engineer for Fram, and left ebcause of quality control problems. Since then, I don't trust them, never will. I have used AC, Purolator, STP, all with success now.
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