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  #1  
Old 10-15-2013, 11:08 AM
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Killed the Truck, Kinda...

So since last Friday when I was delivering a cord of wood, around 5K gross weight, I've been hearing this kinda hissing of air, but louder, and was thinking it was an exhaust leak. I also noticed a bit of a loss in power, esp when towing the trailer, seemed to be sluggish going up grades and the EGTs were getting into the 1200s. So brought the truck to my mechanic today, he says its a torn flex pipe, on the back of the engine before the turbos, said I'm probably loosing close to half the exhaust, so therefore I'm loosing boost. I know the cab has to be pulled to do the job, and don't know how much time I have before it inevitably strands me somewhere.

I'm guessing that the hot tune on my livewire finally caught me. I knew something would happen, always thought it'd be the tranny though. I was really hoping I'd make it to the trade-in date, hoping I still will next week. Got appts to get the truck stripped down, just hoping the truck holds out.
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Old 10-15-2013, 04:39 PM
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Quote:
Originally Posted by BigGreen06 View Post
So since last Friday when I was delivering a cord of wood, around 5K gross weight, I've been hearing this kinda hissing of air, but louder, and was thinking it was an exhaust leak. I also noticed a bit of a loss in power, esp when towing the trailer, seemed to be sluggish going up grades and the EGTs were getting into the 1200s. So brought the truck to my mechanic today, he says its a torn flex pipe, on the back of the engine before the turbos, said I'm probably loosing close to half the exhaust, so therefore I'm loosing boost. I know the cab has to be pulled to do the job, and don't know how much time I have before it inevitably strands me somewhere.

I'm guessing that the hot tune on my livewire finally caught me. I knew something would happen, always thought it'd be the tranny though. I was really hoping I'd make it to the trade-in date, hoping I still will next week. Got appts to get the truck stripped down, just hoping the truck holds out.

Here's my only concern.

Running too rich aka where is all that extra fuel going?

Less boost less oxygen to burn mean left over fuel.

But fuel might also be based on boost pressure so it might not be a big deal..

If not then just your exhaust breaking in half. Also wondering if the gases are finding away into your cab.


Have the cab removed replace the hpfp and upgrade to Rudy's and 4" down pipe. If you can bank it.

Sorry to hear..
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Old 10-15-2013, 08:08 PM
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Has nothing to do with the HPFP, plus that was replaced last year, it's practically brand new. When I saw my mechanic, he opened the hood, and had me mash the throttle, I saw a huge plume come up from the back of the engine, and nothing out the tailpipe. I was thinking it might be the up-pipe, because that did have a small crack in it 6 or 7 months ago.
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Old 10-16-2013, 06:14 AM
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Yup sounds like a cracked up pipe. My truck is in the shop getting 6.0 manifolds and Rudy's up pipes. That's probably the best option but not worth it if you are trading it in. What are you trading it for?
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Old 10-16-2013, 10:16 AM
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Pretty much a straight up trade on the same truck just a 14, also a long bed.
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Old 10-16-2013, 01:58 PM
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What dealership is that!
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Old 10-16-2013, 04:45 PM
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You don't have to pull the cab to do up pipes.


Sent from AutoGuide.com App
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Old 10-16-2013, 07:03 PM
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True, you don't have to, but it makes it easier.
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Old 10-28-2013, 01:52 PM
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Ok, so I looked at the truck closer today, and I don't think it's the actual pipe, it's some type of flex joint/pipe that connects the pipes.
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Old 10-28-2013, 01:54 PM
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So one of the bellows is leaking? Do you have a pic?
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