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Old 12-06-2007, 04:23 PM
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Strange noise????

My truck just started making a strange noise. I happens when I'm at half throttle or more and i let off it makes a strange whistling noise for a second or two. Would that be the turbo or a leak in the line? I also just noticed a oil leak on the motor by the harmonic balancer is that a common leak and if so how long of a repair would that be if i was to take it in to Ford. thanx
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Old 12-06-2007, 04:31 PM
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your "whistle" sounds like turbo fart. Make sure the filter isnt plugged....it could be a sticking egr valve, a sticking turbo, or a plugged filter. Ive also seen bad contacting pins in the mass air flow sensor cause this.

The leak is relatively common....especially in 03-05 trucks. Its the front crank seal leaking and im guessing your gonna be in 3-4 hours labor and approx $100 for parts....
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Old 12-06-2007, 04:52 PM
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I'll check the filter tomorrow. Now the turbo fart is the chug-chug sound when you let off fast at full throttle right? The sound i get is more of a long higher pitch resonating sound? sorry the sound is hard to describe. Also, how would you check for a sticking egr or turbo?
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Old 12-21-2007, 05:49 PM
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I know you posted this a few weeks ago but see if this helps. I had a similar noise almost like a hum from what I thought was the turbo. But after several days of scratching my head had someone looking under the hood while I gave it some throttle and the whine was from the coolant cap. Took it to the dealership after radiator blew the seal between the radiator and end cap. Had to get a new radiator and they are telling me that its head gaskets. The dealer has been very helpful. Supposedly the blown head gaskets are dumping the excess pressure into the cooling system and hence the noise. They are pulling all kinds of parts off my engine so that they can inspect them. My truck is completely stock and I am very anal about maintenance. Oil every 5-6k and fuel filters every other oil change. If you are having the same problem get it to the dealer.

06 350 c/c 6.0l
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Old 12-21-2007, 06:14 PM
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i though that if you have blown a head gasket that you would see coolant loss and over heating. I could be wrong thats just what i have read in the forums. I will check that out tomorrow. thanks for the idea.
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Old 12-21-2007, 06:29 PM
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Just to give you more details. My noise was like you said, either under acceleration or coming off the throttle. It would usually only occur after my engine was warmed up. The dealer verified the noise.
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Old 12-21-2007, 06:36 PM
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Sounds like a good time for head studs, premirr.
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Old 12-21-2007, 06:41 PM
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Does anyone know if Ford has come up with a solution for these head gasket issues or are they just fixing it with the same old stuff? My concern is getting this vehicle back after its been ripped apart and continuing to have problems. Right now I have 47K, what happens if it has the same issue at 101k
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Old 12-21-2007, 08:13 PM
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Buy the ARP studs and have the dealer put em in with the new head gaskets.
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