Ruff idle related to bad muffler?

1998 DODGE RAM
150,000 MILES • V8 • 4WD • AUTOMATIC
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FUTUREXBOY
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  • 1 POST
My Dodge Ram 1500 4x4 dies on warm start up, will run on cold start up, and will run with foot into gas after it has warmed up; I also discovered that my muffler has rusted out, and is disconnected from the tail pipes on the backside, still connected on cab side...could the muffler problem be causing the problem with the engine not wanting to idle after it has warmed up? Also there is an big oder of gas at start up.
Dec 11, 2010 at 9:33 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
No, the muffler won't cause that. Has the check engine light come on? Have you checked for vacuum leaks? Have you checked the idle air control valve (IAC)?

Let me know.

Joe
Dec 21, 2010 at 7:33 PM
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