Exhaust backpressure - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 06-13-2013, 01:19 PM Thread Starter
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Exhaust backpressure

When my truck is left running there is a surging sound that is made. My dads makes the same noise (like a jet) but is constent. I was told that is sounds like the exhaust backpressure sensor is messing up. Would you agree? Also what do i need to do to correct this? Thank you

early 99 Red F-250 XL SD, 7.3L, 6-speed manual, Extended Cab, Long Bed, 4x4 Off Road, and Reflexxion Cowl Hood, Ion Alloy 183 wheels, 05 headlights with 6000k AC HID kit, and led turn signals, Ford ASI filter w/ zoodad mod and foam sleeve, TS 6 position chip, Auto Meter Z series Boost and EGT gauges, and straight pipe oem exhaust. .

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post #2 of 7 Old 06-13-2013, 05:34 PM
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if its left idling and its cold outside it will close the valve and make the sound. now if its already warmed up and its closing you probably have an issue.

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post #3 of 7 Old 06-13-2013, 05:39 PM Thread Starter
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It does it when ever it is first started up and left running in warm or cold weather. It just does not sound like mt dads 2000.

early 99 Red F-250 XL SD, 7.3L, 6-speed manual, Extended Cab, Long Bed, 4x4 Off Road, and Reflexxion Cowl Hood, Ion Alloy 183 wheels, 05 headlights with 6000k AC HID kit, and led turn signals, Ford ASI filter w/ zoodad mod and foam sleeve, TS 6 position chip, Auto Meter Z series Boost and EGT gauges, and straight pipe oem exhaust. .

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post #4 of 7 Old 06-13-2013, 05:50 PM
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well is yours straight piped and his not?
my dads 2000, which is all stock, isnt that loud.
but mine is straight piped and sounds like a jet.

if its doing it in the morning thats normal.

99.5 f250 7.3 4x4 255k
PHP Phoenix, S&B, 4" Diamond Eye, Hpx, Stancor, RR Billet Wheel, RR AIH Delete, Autometer Gauges, Pro Comp leveled, Transgo Tugger, Billet TQ Converter, Warn Hubs, Int'l Up-Pipes, RR IC-Boots, Non-Ebpv Pedestal, High Flow Outlet, Hucorey's HPOP Lines, RR High Flow Fuel Fittings, RR OCR, Barder 360 Thrust Kit, 08 Tow Mirrors.

Dad-2000 7.3 108k miles, Autometer Gauges, Superchips 1705, RR AIH Delete, 6637, 4" Diamond Eye, BD Billet Wheel, TruCool Max
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post #5 of 7 Old 06-14-2013, 11:36 AM Thread Starter
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Both are straight piped. They sound have the same sound. But mine just has that strange sound

early 99 Red F-250 XL SD, 7.3L, 6-speed manual, Extended Cab, Long Bed, 4x4 Off Road, and Reflexxion Cowl Hood, Ion Alloy 183 wheels, 05 headlights with 6000k AC HID kit, and led turn signals, Ford ASI filter w/ zoodad mod and foam sleeve, TS 6 position chip, Auto Meter Z series Boost and EGT gauges, and straight pipe oem exhaust. .

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post #6 of 7 Old 06-16-2013, 02:32 PM
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My 99.5 did the same thing till I did the EBPV delete. I did that along with a few other things to the turbo (Non EBPV pedestal, ATS ported compressor shroud, and turbo master waste gate controller) I am very pleased with the results, lower EGT's and more steady boost pressure. I highly recommend the EBVP delete, non EBPV pedestal, and the turbo master waste gate controller. The ATS ported compressor shroud defiantly did the job of fixing my surge problem but this can also be done with a WW or even better a WWII, which is what I will be changing out next.
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post #7 of 7 Old 06-16-2013, 02:41 PM
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Just read your original post again. You said it is surging and your dad's is constant. Constant is normal surging is not. It may be the exhaust back pressure sensor, but it could also be the solenoid that actuates the EBPV. If that is not staying energized for any reason it could cause a surging or whoosh, whoosh, whoosh sound.
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