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| tapping noise when cold http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=16837 |
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| Author: | moose_1978 [ Mon Jan 22, 2007 9:30 pm ] |
| Post subject: | tapping noise when cold |
Well just went wheeling at paragon and noticed this morning when I started up my kj there was a tapping type of noise coming from the bottom of the exhaust manafold area on the pass side.When it warmed up it got quieter.Any thought's? |
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| Author: | Jeepin Al [ Mon Jan 22, 2007 10:14 pm ] |
| Post subject: | |
Time to check a couple of things, the skid plate against anything, the exhaust pipe against anything, and check to see if the plate is tight. Next is a engine tick? Sound like an old chevy small block with a bad lifter? If it does, and you may have a noisey injector. Hard to pin point a noise with out hearing it. Al |
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| Author: | crackercrd [ Tue Jan 23, 2007 10:41 am ] |
| Post subject: | Re: tapping noise when cold |
moose_1978 wrote: Well just went wheeling at paragon and noticed this morning when I started up my kj there was a tapping type of noise coming from the bottom of the exhaust manafold area on the pass side.When it warmed up it got quieter.Any thought's?
On my past vehicles, that would sound like a leak in the exhaust. when its cold it leaks, as it warms up, the metal expands and seals the leak ( for a while anyway). just a though. |
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| Author: | moose_1978 [ Tue Jan 23, 2007 6:32 pm ] |
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I sorta think it is a cracked manifold due to the heat it generates and the cold river I went through I think that is what happened.Does that make sense? |
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| Author: | EOD-KJ [ Tue Jan 23, 2007 6:54 pm ] |
| Post subject: | |
its depends on how loud it is all metal expands and contracts due to heat....most of the time it is noticed when shutting off a hot car, the tapping is going on because its cooling down and the metal is slightly changing but its also heard a lot on warmup i wouldnt worry about it if there is no performance or actual differences while driving but if you suspect a leak you can always try searching it out |
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