1999 Dodge Ram rattiling noise

1999 DODGE RAM
124,000 MILES • V8 • 4WD • AUTOMATIC
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TLISH10
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  • 1 POST
My 1999 Dodge Ram sport started making a rattiling noise.It is light when idle but upon acceleration it is obvious. While driving it seams to shift fine.When climbing a incline it seems to labor and i noticed my RPMS go from 1500-2100.If i ease off the gas a little it will go back to normal RPM for whatever speed i am at. I ran it low on gas a few times and ran out once. The transmission filter and fluid have been changed.It shifts fine on low speeds but at higher speeds 60-70mph is when it happens.What is it?? transmission,Catylac Convertor??
Aug 17, 2010 at 10:25 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Take a rubber mallot and tap on the exhaust system to see if you can replicate the sound. It could be a heat shield, the inside of the catalytic converter could have come loose, or a loose resinator.

Check that and let me know what you find. Also, let me know if the check engine light has come on.

Joe
Aug 18, 2010 at 12:05 AM
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