The Whooping Sound Has Been Fixed!! - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 01-03-2008, 06:51 AM Thread Starter Rookie
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Smile The Whooping Sound Has Been Fixed!!

A few months back I had asked if anyone had heard this whooping noise that my truck was making. A few said it could be a valve issue, another thought it may be an injector etc, etc.

I finally took it into the Dealership and had them tear in to it and this is what they found..... #1, The Roller Lifter on the last cam lobe (firewall side of cam) had the wheel lock up and wore a channel / groove in the cam lobe causing the exhaust valves to not work for that cylinder. #2, the "Y-Pipe" had a crack in it causing some extra noise and soot on the firewall. #3, The Turbo's shaft had some slack / free-play up & down in it, so I replaced the Turbo so I would not have trouble with it down the road.

So everyone who thought it was a Valve train problem you were right! But who has ever heard of a Roller Lifter wheel locking up? Anything is possible with mechanical parts... I did buy the truck used ant the Mechanics said it may have been run low on oil at some time.

Below are a few pics of my truck and a couple of cam lobe pics in the motor. I will post a few of the Cam by its self that should be easier to see the groove.

Thanks again for all the ideas!! I am glad to have my truck back and running like it should!!

Jim G.

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post #2 of 2 Old 01-03-2008, 09:27 AM

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Congrats, bud! Glad you got it fixed and taken care of.

Shawn Carlson

Proud Navy Vet
2005 F250, CCSB, 6.0 PSD, FX4 (The Sweet Unit is white)
2008 F350, CCLB, 6.4 PSD (Brad-the wife's truck is black)

Engine Mods:
CCV Reroute (Reinstated)
4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
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