Ford Mustang Forum - View Single Post - 2001 3.8L Mustang Engine Noise Normal?
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post #3 of (permalink) Old 02-04-2011
Markstang
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Joined: Jan 2009
Location: Dumont
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definitely sounds like an exhaust leak before the catalytic converter.. as it warms up it probably closes the leak somewhat converter's probably not toast.. it takes time to warm up and actually filter the exhaust gases

2003 3.8L V6 4R70W
Windstar Upper Intake with cool-air intake, MAC LT headers, BBK O/R H-pipe, and flow 40s, SCT tuner, FRPP Alum. D/S, 3.73 gears, Auburn HP limited slip, and Team Z LCAs, Eibach sway bars.
Best 1/4 time: 15.036 @90.92mph, 2.148 60'
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