Exhaust leak?
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Junior User
Joined: Jun 2011
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Exhaust leak?
I have a 1993 ford f150 with a 4.9 straight six. It seems as if it has a slight exhaust leak. The leak isn't big enough to notice all the time but I can notice it under heavy acceleration and going up hills. The leak is also loud enough to make it uncomfortable in the cab noise wise at times. I have looked all over and can't seem to find where the leak is coming from. Any ideas?
Junior User
Joined: May 2012
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From: Maryland
Check the manifold and where the manifold meets the tailpipe. Don't let it go. Mine was slightly leaking there and after I towed my camper it melted my heater box costing me $1,000.00 to have it fixed not including the exhaust leak. I have a F250 with a 351ci.
Elder User - What???
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From: Moore, OK
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Junior User
Joined: May 2012
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From: Maryland
Sounds like right were mine was. My floor and 4 wheel drive shifter would get warm.
Elder User - What???
Joined: Dec 2011
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From: Moore, OK
I'm not aware of an easy fix for that. Perhaps somebody else has repaired this type of damage before and can chime in. Unfortunately, it sounds like you'll need to consider replacing or eliminating your cat. It would be best for the environment and emmisions inspections and other legal ramifications if you replaced it. Unless you can reuse the air tube going into the cat, you'll probably have to replace it as well.
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