4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

i need help big time

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Old 02-17-2007, 05:24 PM
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sleeping stallion
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Default i need help big time

ok i got my o/r h pipe on but it seems like there is a leak from the passanger side.
it took me and my friend bout 3 hours to do pita
what could have gone wrong.
when i took the stock h down there was no gasket is that maybe the problem or what
i made sure eveything aligned right before we tighten everything
byt the way it is too loud lol after 2k rpm it really kicks in
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Old 02-17-2007, 05:26 PM
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sprostang
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Default RE: i need help big time

If you didn`t put on a gasket then thats your problem.
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Old 02-17-2007, 05:32 PM
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oh yup thats it then thanks man is thatthe only thing that can cause it or anything else
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Old 02-17-2007, 05:33 PM
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dsg04gt
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Default RE: i need help big time

[sm=alcoholic.gif]Exhaust leaks.. I don't like to speak of these anymore. You don't wanna know my history with them. But anyways, if your stock one had no gasket, and you know no one had owned the car before you/ put on an aftermarket midpipe, thats wierd. Maybe its still on the midpipe and you didn't see it? Get a new gasket from ford, it'll run you about 9 bucks. If that doesn't do it, buy new studs for the manifolds. Make sure not to torque down one thing then move on.. get it all on losely, then take your time making rounds tightening it.

Peace.
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Old 02-17-2007, 05:44 PM
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Default RE: i need help big time

yea thats what i did i loosen everything until it was all right then started to tighten but as for the gasket yea i got it from my bro when it had 42 and he got it brand new and he never did anything to it. so thats what was triping me out but do i have to go to ford or a auto parts store carry them to
is there anything wrong with drivig like that for today and doing fixing the leak like tomorrow or so
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Old 02-17-2007, 05:47 PM
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You can drive it like that, it wont hurt anything.
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Old 02-17-2007, 05:49 PM
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oh but it wont run lean or rich or mess anything up
when u guys did this what did u guys do to ur driving 02 sensor
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Old 02-17-2007, 05:54 PM
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8banger
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Default RE: i need help big time

If the leak is above the front o2 sensor,,,,pcm will think the engine is running lean and addfuel....so it should run, technically abit rich....I doubt running it for a day will hurt anything....I've got my x pipe in the garage....and looking at it...the right side fronts,,gotta have a gasket...and that will bethe first side i'll try and tighten,,becasue its flat...also gonna use ultra copper RTV on both side of the gasket,,,very good sheet....I used it on my headers(old race cars),,without gaskets altogehter....
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Old 02-17-2007, 06:55 PM
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whats copper rtv
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Old 02-18-2007, 06:55 PM
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Default RE: i need help big time

when i put the gaket back it is there anything else i have to do
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