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| Rattling Noise http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=9481 |
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| Author: | hatteras8926 [ Tue Jun 13, 2006 6:42 pm ] |
| Post subject: | Rattling Noise |
Stock '03 Liberty Sport 3.7L V6 Automatic Command-Trac Saturday after I drove out onto the beach, my Liberty developed an unusual rattling sound. It usually occurs around start up (though it seems to occur more after sitting for a while). When I start the Jeep, there is a metallic "ping" sound, followed by a metallic rattling sound. The sound generally decreases in volume as time passes to where it will stop for a second, then begin again. When I put it into gear, the volume and speed of the rattling increase once again, but eventually go away. Today, it made the noise again as I accelerated after having driven about 1/10 of a mile, but did not make the noise anymore. I have not seen any new puddles underneath the Liberty, it still runs the same as it ever did. I at first thought it might have had to do with the starter because when I replaced it two months ago, the new one was a little bigger than the old one, so I had to modify the heat shield slightly and was unable to attach it with both bolts that came on the original. I figured the bumpy terrain knocked it loose, but the noise seems to be coming from the passenger side more than the driver's side, so I do not believe it is the starter. I was also considering it possibly being the transmission because I had an '86 Cherokee that would rattle when it was shifted into Reverse, caused, IIRC, by the flex plate. But as I said, the Jeep still runs like it always did and the ATF level was fine. So, does anybody have any ideas? Thanks in advance. James |
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| Author: | SKIDOG [ Tue Jun 13, 2006 10:57 pm ] |
| Post subject: | |
Sometimes noises are hard to pinpoint where they are coming from. Have you tried this testing when someone is outside the vehicle? |
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| Author: | Jeep Dawg [ Wed Jun 14, 2006 12:02 pm ] |
| Post subject: | |
The rattling noise might be your heat sheild to the muffler. Maybe one of the tack welds broke loose and that is the noise your hearing. It happend to me a while ago, and seems when the jeep ran for a little bit, it would go away. I guess from the hear that the shield expanded from the heat and moved away from making tapping contact. Just a suggestion from my end man. |
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| Author: | hatteras8926 [ Wed Jun 14, 2006 4:43 pm ] |
| Post subject: | |
I haven't yet had someone stand outside the vehicle when I start it to test it. I've only been able to try to pinpoint it on my own. But I'm definitely going to have someone I trust to listen in in the near future. I was unaware that there was a heatshield on the exhaust. But that is something I will look into. Thanks for the info. James |
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