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post #1 of 15 Old 01-06-2008, 03:32 PM Thread Starter
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Exclamation HELP TECHS!

Alright guys heres the problem. I put my new 4'' turbo back exhaust on yesterday and now i am having a problem. The exhaust is nice, neat and cleanly put together, no leaks noticeable and the down pipe seems to be clamped to the turbo flawlessly. However, under harder acceleration and higher RPM's my motor is making this very loud (low Decible) groan/moan sound, it almost sounds like an extremely loud gas job, it almost hurts my ears. the whole truck seems to be loud i can feel the moaning sound/vibration in my feet and floor boards too. Im a little discouraged it seems like there could be so many causes for this and just wondering if anyone has ever experienced this before. I dont think it had to do with the exhaust but its extremely coincidental that it started happening the day after i installed it. Any input would be great, thanks guys!

-PJ



~Early 99' F350 PSD 4X4~

>Tymar 6637 intake
>Edge evolution
>CCV Mod
>FPR Shim
>HPX Oil Line- Performance Oil Products
>TC Lockup Switch
>BFG All Terrains 305/70/16
>IDM Mod
>Isspro Gauges- Pyro, Tranny, Boost
>FBD 4" Turbo Back, Straight Pipe Exhaust
>Ford Re-manufactured Tranmission
>Rebuilt Stock Garret Turbo. (Parts from Ron's Turbo Service)
What's Next
>BTS Valve body (hopefully sooner rather than later)
>Lit Tow Mirrors
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post #2 of 15 Old 01-06-2008, 05:18 PM
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Check the down pipe, mine was rubbing on the cylinder head and was vibrating the truck.
so I loosened up the pipe and moved it just alittle.

99 F350 4x4 dually
7.3 w/K&N af
4" exh into 6" Aussies stacks
4"lift &35" tires
CC mod HP crossover line
Beans stage II 120hp injectors
D66 turbo
ITP regulated return
reburn on TS= 25,high idle,60,100,120,140hp
updated ecm (2000 model)
Dyno#'s 360hp and 965 ft lbs trq
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post #3 of 15 Old 01-06-2008, 05:22 PM
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Yeah I agree sounds like your exhaust is rubbing on somthing resonating through the cab.

2002 F-250 4x4 EC, SRW, SB
Auto 93,000 miles
DP Tuner F5
ATS Compressor and 1.0 Exhaust housing high flow back plate
Turbo Back 4" Silverline Exhaust Mbrp Muffler Delete
Isspro Trans,Pyro,Boost Triple Pod
Fumoto Oil Drain Valve
AIH Delete With Boost Fitting

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post #4 of 15 Old 01-06-2008, 05:29 PM
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I installed PJ's down pipe, and I was aware that the DP may rub the cylinder head a bit and made the proper adjustments to prevent the pipe from rubbing anything, but I may have missed something. The DP is a full 4", meaning it doesnt step down to 3-1/2" at all which makes the fit extra tight. I put the truck up on the lift several times and as far as I can tell the DP is clear, I'm like 95% sure the DP isnt hitting anthing, but I could be wrong.

You guys should hear this sound, it sounds like the exhaust pipe is running thru the cab its such a sound. Deep and low-toned and is effected by the RPM's. Higher RPM's the louder it is, it almost sounds like a driveline drone, but it only did it after the Exhaust install, so it must be exhaust related.

Early 99 F-350
4" lift on 33's
Tymar Intake, Isspro Gauges, Modded IDM, HPX, Boost Fooler, 4" Exhaust
-BTS Tranny
-76mm Sledgehammer
-Swamps Tuning
-230cc Casserly Hybrids
-T.E. Modded 17* HPOP
-ARP's, Chromoly's, 910's
-ITP RR

-Jake
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post #5 of 15 Old 01-06-2008, 05:31 PM
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i bet its rubbing the cab just below the turn in the down tube at the turbo, ive had two this week do the same thing , take a prybar and put between the pipe and the body of the truck and pry the body back just a bit ,also look at trans crossmember where the exjaust runs thru it , most likely up high at the bend in the down tube though

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post #6 of 15 Old 01-06-2008, 05:43 PM
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Quote:
Originally Posted by SCUFFY828 View Post
i bet its rubbing the cab just below the turn in the down tube at the turbo, ive had two this week do the same thing , take a prybar and put between the pipe and the body of the truck and pry the body back just a bit ,also look at trans crossmember where the exjaust runs thru it , most likely up high at the bend in the down tube though
trans crossmember is totally clear I'm 100% sure of that and everything from the crossmember back is 100% clear so it must be a down pipe issue, or something right in that general vicinity.

Early 99 F-350
4" lift on 33's
Tymar Intake, Isspro Gauges, Modded IDM, HPX, Boost Fooler, 4" Exhaust
-BTS Tranny
-76mm Sledgehammer
-Swamps Tuning
-230cc Casserly Hybrids
-T.E. Modded 17* HPOP
-ARP's, Chromoly's, 910's
-ITP RR

-Jake
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post #7 of 15 Old 01-06-2008, 05:49 PM
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gotta be in the down tube right at the bend then where it goes down, its rubbing the body there

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post #8 of 15 Old 01-06-2008, 05:52 PM Thread Starter
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Yea, jake and i made the necessary adjustments to the cross-member section, it was close, so we made some adjustments just in case. We'll have to check the downpipe more closely in all areas, thanks for the input so far guys, definitely easing my mind after a stress filed weekend

-PJ



~Early 99' F350 PSD 4X4~

>Tymar 6637 intake
>Edge evolution
>CCV Mod
>FPR Shim
>HPX Oil Line- Performance Oil Products
>TC Lockup Switch
>BFG All Terrains 305/70/16
>IDM Mod
>Isspro Gauges- Pyro, Tranny, Boost
>FBD 4" Turbo Back, Straight Pipe Exhaust
>Ford Re-manufactured Tranmission
>Rebuilt Stock Garret Turbo. (Parts from Ron's Turbo Service)
What's Next
>BTS Valve body (hopefully sooner rather than later)
>Lit Tow Mirrors
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post #9 of 15 Old 01-06-2008, 05:59 PM Thread Starter
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Quote:
Originally Posted by SCUFFY828 View Post
gotta be in the down tube right at the bend then where it goes down, its rubbing the body there
Just curious, what were the customer complaints? what were they saying their issues were and were they similar to mine at all? Just curious thanks in advance

-PJ



~Early 99' F350 PSD 4X4~

>Tymar 6637 intake
>Edge evolution
>CCV Mod
>FPR Shim
>HPX Oil Line- Performance Oil Products
>TC Lockup Switch
>BFG All Terrains 305/70/16
>IDM Mod
>Isspro Gauges- Pyro, Tranny, Boost
>FBD 4" Turbo Back, Straight Pipe Exhaust
>Ford Re-manufactured Tranmission
>Rebuilt Stock Garret Turbo. (Parts from Ron's Turbo Service)
What's Next
>BTS Valve body (hopefully sooner rather than later)
>Lit Tow Mirrors
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post #10 of 15 Old 01-07-2008, 04:59 AM Thread Starter
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going to New Hampshire for a few days heres a last minute thanks guys

-PJ



~Early 99' F350 PSD 4X4~

>Tymar 6637 intake
>Edge evolution
>CCV Mod
>FPR Shim
>HPX Oil Line- Performance Oil Products
>TC Lockup Switch
>BFG All Terrains 305/70/16
>IDM Mod
>Isspro Gauges- Pyro, Tranny, Boost
>FBD 4" Turbo Back, Straight Pipe Exhaust
>Ford Re-manufactured Tranmission
>Rebuilt Stock Garret Turbo. (Parts from Ron's Turbo Service)
What's Next
>BTS Valve body (hopefully sooner rather than later)
>Lit Tow Mirrors
pojo4223 is offline  
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