Turbo won't boost

[HB F-250]

Ok first of all I'm new to this forum and to diesel. I recently bought a 2005 F-250 SD 6.0 Powerstoke diesel, for about 2 months now Ive been hearing a "screeching" sound when I accelerate and just at a crusin speed(35-40). So I took it to a mechanic and they told me its a belt and fed me the b.s. card. So they replaced it and called to say that it still makes the noise. Now they say it may be the EGR, but I know that was replaced before I bought the truck. So I took the truck home today and decided to punch it, when I did I heard a loud pop then whistling when accelerating and no more boost in turbo. So I hope this isn't an expensive problem. Can anyone tell me what's up?

[WarChild]

Have you read any of the threads or even opened your hood? That loud pop was more than likely one of your cac boots coming off. The screaching could be a lot of things but fix the boot first.
**Please note....if you hear a strange sound, mashing the throttle is not the best way to try and fix it.**

Sent from my SPH-L710

[kinnisoj]

First off,

Not laughin at you but this all reminds me of the sticker I had on my dirt bike as a kid that said "when in doubt floor it"..... Spend a little time snoopin around the site and you wont have to eat any more bs bills.
Now the loud pop was a boot and Im guessin the skreechin is the turbo. Probably needs a lil attention. Both can be found on this site.

[WarChild]

Originally Posted by kinnisoj

First off,

Not laughin at you but this all reminds me of the sticker I had on my dirt bike as a kid that said "when in doubt floor it"..... Spend a little time snoopin around the site and you wont have to eat any more bs bills.
Now the loud pop was a boot and Im guessin the skreechin is the turbo. Probably needs a lil attention. Both can be found on this site.

Kinda sounds like what I said.

Sent from my SPH-L710