2000 F-250 diesel

EROSS17

Junior Member
I have about 21,000 on my diesel. In the cold weather it makes a loud hissing noise, even after it's been running for awhile. Anybody getting similar noise?
 

bam

Senior Member
Location
.
I have started up several of our 2000 F450 PSD.

I also notice a hissing noise after starting during the cold days. It will continue for awhile.

While I've never heard the same type of noise with the rest of the fleet, which includes 10yr. old trucks, I don't think it's anything abnormal for these new 2000 psd's.
 

John DiMartino

PlowSite.com Veteran
Location
Walden,NY
I hear it too,I think its the butteryfly valve in the exhaust,that gives the engine backpressure when its cold,helps it warm up quicker,kinda like an exhaust brake,the hissing is the air escaoing around it under high pressure,so Id say its normal until its fully warmed up anyway.
 

Randy Scott

Senior Member
Location
Germantown, WI
I have a 2000 also and it is partially because they did not put a catalytic converter on starting this year, the turbo pipe is a true 4 inches coming off the motor and it also is what John said about the butterfly keeping the correct amount of pressure not only when it is cold but also when warm to help monitor the temp of the turbo at the motor.;)
 

oldmankent

PlowSite.com Addict
Yep, it is the EBV. I haven't quite figured mine out yet, as I thought it is only supposed to operate while the truck is warming up. Mine kicks in after it has been running hard sometimes. If you have problems with it, "ford-diesel.com" is the place to go. As there are many symptoms to the faulty operation of this thing. Good Luck
 

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