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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

Exhaust leak

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Old 04-15-2012, 11:53 AM
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Originally Posted by DaleD
On my 97 4.6L it was the exhaust pipe bolts where the manifold connects to the exhaust pipe. They just rusted through. Went to a muffler shop they burned the bolts outs after dropping the exhaust pipe. Replaced with 4 new bolts and nuts, 1 1/2 hrs cost me $125.00 Only had the noise when it was cold, then the ball and socket expanded the the noise left .
Did they use stainless? Only way to go IMHO
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Old 04-15-2012, 03:22 PM
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Originally Posted by Jacob.P93

What about long tube headers?
With longtubes your going to have to cut off some or relocate your exhaust a lil bit. If i remember correctly when i helped my buddy install his if you cut off the first set of cats and weld the flanges where you cut it they will fit perfectly but youll also have to move/relocate the first pair of 02 sensors or else youll get a cel
Old 04-15-2012, 04:29 PM
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Oh i see and shortys bolt right up? Can you explain what a leak sounds like?
Old 04-16-2012, 07:14 AM
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Originally Posted by Jacob.P93
Oh i see and shortys bolt right up? Can you explain what a leak sounds like?
Yah shortys bolt right up. a leak will sound like a ticking noise when you accelerate. If its really bad youll hear it while its idling, kinda sounds like your truck is purring. Its hard to find an exhaust leak cuz when the pipes heat up itll close the holes/gaps so make sure you do a cold start when ur looking for the leak
Old 04-22-2012, 04:11 PM
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Just a piece of advice i learned in finding a leak is running seafoam through the brake booster, smokes like a bastard so it's easy to spot leaks. Thats how i found the one on my manifold flange. Easier if you have one person run the seafoam and another search for the leaks, plus it helps clean out your engine.
Old 04-22-2012, 10:49 PM
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I heard sea foam is not the best thing to run
Old 04-23-2012, 10:33 AM
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I've never had a problem with it, used it on tractors, bikes cars, trucks, push-mowers and just about anything else with a motor. Just don't leave it in the system for to long of course, it is a cleaner after all. i leave it in for 15 mins in whatever i'm using then start it up and burn it out.
Old 12-30-2013, 09:14 PM
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i have the same problem, mine is leaking at the flange bolt. Question....i have a set of shorty headers from a mustang, same year, same motor size...will they fit my truck?



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