2003 Dodge Ram What could be wrong?

Tiny
DAWDGEMAN
  • MEMBER
  • 2003 DODGE RAM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 47,000 MILES
I have recently started to hear a rattling noise from my truck and I do not know where it is coming from. In the morning, when its cold, I hear it when I push the gas usually in between 5 to 10 mph. I sometimes hear it when its warm when I press the gas pedal also. The one thing that both instances have in common is the position of the pedal which is early in pressing of it. Some times I don't hear it at all. I don't want to take it to a mechanic if I don't have to. Thanks in advanve for whoever may be able to help
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Sunday, March 7th, 2010 AT 5:20 PM

7 Replies

Tiny
BMRFIXIT
  • EXPERT
Check exhaust shields
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Sunday, March 7th, 2010 AT 8:50 PM
Tiny
DAWDGEMAN
  • MEMBER
I looked but I'm not exactly sure what it is I'm looking for. I felt a soft spot near the catalytic converter, and I saw that a plug end from the catalytic converter was touching the heat shield leaving a black mark I guess from it melting.
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Monday, March 8th, 2010 AT 5:44 PM
Tiny
BMRFIXIT
  • EXPERT
When exhaust cold
hit the exhaust with hand
listen for loose tin sounds
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Monday, March 8th, 2010 AT 7:23 PM
Tiny
DAWDGEMAN
  • MEMBER
Ok I just checked the exhaust I only heard the vibration of the exhaust but it does not sound like the rattling noise I've been hearing. Nor did I hear any tin noises. I did put the exhaust on my self and the ubolts didn't close the pipes enough to keep the exhaust air from coming out. I tried to seal the pipes where they connect but I see black chalky stuff on the outside. Could that have had something to do with the noise? I don't want to say that the exhaust is not the problem so I'll wait to hear what you think. Back to the heatshield should I take them off to see if there's something wrong?
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Monday, March 8th, 2010 AT 8:51 PM
Tiny
BMRFIXIT
  • EXPERT
Use a metal wire and rap it around them tight easier
and quicker if that take care of the noise than you can remove the shield if you elect
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Monday, March 8th, 2010 AT 9:41 PM
Tiny
DAWDGEMAN
  • MEMBER
I reread what First posted And I don't think I said what I needed to say. It is not a constant sound just a sudden sound of like a second or two. If I hold the gas at the right place I hear it longer but not as violent, but it doesn't always sound when I try to make the noise. I let my father drive it while I listened and it appeared to come from the middle to the back of the truck so It could be the heat shield and I missed it or something else. I did look at the heat shield but couldn't simulate the noise. A question I was hoping you could answer is if air is escaping the exhaust in the wrong places could that be what is causing the sound? Thanks BMRFIXIT for your help.
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Tuesday, March 9th, 2010 AT 7:33 PM
Tiny
BMRFIXIT
  • EXPERT
If have a leak in the exhaust system it would be at all time more noticeable when gas applied

I would suspect an exhaust shield or exhaust rattling and hitting something
if the sound, sound like you have few small rocks in a tin can rooming around
its an exhaust
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Tuesday, March 9th, 2010 AT 8:34 PM

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