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Old 06-14-2010, 04:55 PM
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loud whistling noise under load and boosting

I checked with a local mechanic today and hes discovered a crack in the pipe connecting the exhaust manifold to the turbo, the pipe itself is approx. 2-2.5" in diameter. Does anyone know what the part number is soes that I can quote it to my ford dealer to see if it is under warranty?
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Old 06-15-2010, 03:49 AM
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I don't know the part number off hand, but it sounds like the up-pipe. Which side is it?
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Old 06-16-2010, 04:24 PM
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You mentioned a whisteling noise. Any chance this sounds like an exhaust leak type sound, when under load? I have this and am trying to track it down...
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Old 06-16-2010, 06:42 PM
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We found the leak to be coming from the up pipe on the passanger side at the rear of the motor which is impossible to get to, I can see that the expansion joint is covered with soot, I also found out that this part is covered under warranty thank god, wish me luck!
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Old 06-17-2010, 01:50 AM
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Quote:
Originally Posted by jascott View Post
You mentioned a whisteling noise. Any chance this sounds like an exhaust leak type sound, when under load? I have this and am trying to track it down...
Can you smell exhaust in the cab? I had a loud whisteling noise and it turned out to be a hole in the charge air cooler. Hopefully you find it because if yours sound's like mine, it's annoying as crap.
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Old 06-17-2010, 04:40 AM
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I've checked the up pipes and don't see any soot anywhere. I've also checked the boots and don't see any holes.

I read somewhere else that the cab has to be lifted or the tranny dropped to change the up pipes.
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Old 06-29-2010, 11:49 PM
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well, my cab has to come off now!truck is back to stock and going into ford on tuesday, what a ****in nightmare!
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Old 07-02-2010, 05:34 PM
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I don't understand how it is easier to remove the cab than to remove the trans and change it that way.
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Old 07-09-2010, 07:28 PM
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ya ford ended up pulling the transmition instead of yanking the cab off, but they covered it all and with little hassle
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Old 07-09-2010, 07:36 PM
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wonder why ford went that route? i mean,pullin the cab just to get to somthin minor seems like a hassle...does any one know how the 6.7 is? do you have to pull the motor to get to the injectors???
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