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06-03-2007, 06:26 PM
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#1
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Will tow
Join Date: Mar 2005
Location: Ft Stewart, Ga
Posts: 9,385
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motor noise? with video for sound
my 4cyl motor has been makinga ticking sound for almost a year now (the motor is new just replaced last feb) has less then 40k on it,
details of noise, some times it ticks sometimes it knocks, sometime it makes no noise at all, temp makes no difference, goes up with RPM, sounds like coming from #1 cylinder, no cooling fluid leak, no metal shavings in any fluids, i removed the belt and noise is still there
video
Last edited by RnEmOvr; 11-02-2007 at 10:08 PM..
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06-04-2007, 03:12 AM
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#2
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Web Wheeler
Join Date: Feb 2007
Location: Manchester, UK
Posts: 3,878
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Kind of sounds like a diesel. Whats the whistling sound?
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06-04-2007, 06:54 AM
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#3
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Registered User
Join Date: Sep 2004
Location: Hometown, Il
Posts: 164
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As dumb as this may sound.....try swapping the waterpump!
My 97 made a tick/knock/ping like that for about a year as well after I did a engine swap. Then the waterpump started leaking from the weep hole, so naturally I changed it out. VIOLA the ticking was/is GONE!
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I have a Jeep :D
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06-04-2007, 08:56 PM
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#4
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Accident Prone Bonehead
Join Date: Apr 2003
Location: Hermiston, OR
Posts: 2,673
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Possibly a loose rocker? I would put a tube up to your ear and use it like a stethoscope to isolate the source.
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Hermiston, ORL
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06-04-2007, 09:13 PM
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#5
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Registered User
Join Date: Sep 2006
Location: Ft. Campbell
Posts: 553
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Use a wrench. Itll rattle your ear drum when your on top of the source.x2 on waterpump. Check valve clearence also.
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06-06-2007, 08:58 PM
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#6
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Will tow
Join Date: Mar 2005
Location: Ft Stewart, Ga
Posts: 9,385
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ive tried the stethoscope idea and i know its some where in the front of motor but couldnt narrow it down anymore then that,
and jonny the wistle is from where its in 4lo
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06-07-2007, 01:43 AM
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#7
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Web Wheeler
Join Date: Feb 2007
Location: Manchester, UK
Posts: 3,878
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Is the four cylinder is engine chain driven like the six? If so you can try removing the drive belt and seeing if it still makes the noise. That would reveal if the noise is from something that is driven by the belt including the water pump as suggested above.
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06-07-2007, 02:26 PM
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#8
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Will tow
Join Date: Mar 2005
Location: Ft Stewart, Ga
Posts: 9,385
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Quote:
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Originally Posted by Jonny Jeep
Is the four cylinder is engine chain driven like the six? If so you can try removing the drive belt and seeing if it still makes the noise. That would reveal if the noise is from something that is driven by the belt including the water pump as suggested above.
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if i understand you correctly your saying remove the drive belt, and thus narrowing down if its motor or an external accessory like water pump?
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06-07-2007, 02:54 PM
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#9
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Web Wheeler
Join Date: Feb 2007
Location: Manchester, UK
Posts: 3,878
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Got it in one! Obviously you will loose power steering so if you drive enter corners slowly, and cooling so don't run it for too long.
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06-12-2007, 10:42 AM
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#10
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Will tow
Join Date: Mar 2005
Location: Ft Stewart, Ga
Posts: 9,385
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ok so i removed the belt and started it up, it is comin from the motor, cyl 1 or 2, any more ideas?
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06-12-2007, 12:42 PM
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#11
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Web Wheeler
Join Date: Feb 2007
Location: Manchester, UK
Posts: 3,878
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Worn crankshaft bearings? Anybody else got other/better ideas?
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06-12-2007, 03:54 PM
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#12
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Registered User
Join Date: Jun 2003
Location: North Carolina
Posts: 625
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Well, it sounded like an exhaust leak to me. Not good sound though.
__________________
2007 Patriot Limited
2006 Unlimited Rubicon
2006 Commander
2000 TJ Sport
My previous Jeeps
1992 Wrangler S (Ole Yeller)
1985 Cherokee Pioneer
1989 Cherokee Laredo
1995 Cherokee Country
1996 Cherokee Country
1996 Grand Cherokee Laredo
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06-12-2007, 03:58 PM
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#13
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Will tow
Join Date: Mar 2005
Location: Ft Stewart, Ga
Posts: 9,385
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Quote:
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Originally Posted by Jonny Jeep
Worn crankshaft bearings? Anybody else got other/better ideas?
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how could i check that?
Quote:
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Originally Posted by Ole Yeller
Well, it sounded like an exhaust leak to me. Not good sound though.
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there is a small exhaust leak but that would cause the knocking like that would it?
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06-15-2007, 07:37 PM
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#14
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Will tow
Join Date: Mar 2005
Location: Ft Stewart, Ga
Posts: 9,385
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any more options?
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06-15-2007, 07:45 PM
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#15
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Registered User
Join Date: Sep 2004
Location: Junction City, Kansas
Posts: 1,573
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If the 2.5 has a timing CHAIN that could be it... I streached a timing chain on my 4.2 several years ago and made a simular noise.
When you listen for the noise in a wrench or crowbar, can you narrow it down to the Valve Cover, Head, Block, or Oil pan?
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>
motor noise? with video for sound
