1999 Ford Mustang Exhaust

1999 FORD MUSTANG
224,876 MILES • 3.8L • V6 • RWD • AUTOMATIC
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INKWIZARD
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  • 1 POST
Was told that my donut gaskets need to be replaced and the exhaust is really loud on the passenger side of the exhaust manifold that is bolted to the engine. So my question is do I need both the donut gaskets and the flange gaskets to do the repairs?
Aug 28, 2015 at 7:24 PM
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HMAC300
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  • 48,601 POSTS
see pic I t may be part of manifold if donut is bad they do not list a separate piece for that check at an auto parts.
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Aug 28, 2015 at 11:17 PM
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WRENCHTECH
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  • 20,760 POSTS
Just to add to HMAC's answer, these Mustangs are very notorious for breaking the exhaust pipe right below the flange also so don't be surprised if you find a little more than just the gasket when you look at it closer.
Aug 29, 2015 at 12:19 AM
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IRON JACK
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Had to change the rear end on my 03 3.8 and had an exhaust leak, pulled entire system out from flange to tailpipe and discovered some idiot welded the pipe where it entered the exhaust pipe but missed the crack completely lol who does that? My problem is the donuts are dealer only? wth. Thinking of going with a universal donuts to stop the ticking
Apr 9, 2017 at 10:35 PM
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CJ MEDEVAC
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  • 11,000 POSTS
Looks to me like there are no doughnuts, Looking at the pic up top, looks as though its a taper/ flange kinda fit.

The fix would be to tighten the bolts/ nuts evenly to close the gap. Unless there is a crack in the pipe as mentioned above.

The Medic
Apr 12, 2017 at 11:06 AM
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