EBPV Help
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Elder User
Joined: Oct 2007
Posts: 935
Likes: 1
From: Bowling Green, KY
EBPV Help
Just recently i have noticed that when i drive my truck there is a aweful hissing niose. I know that it is the exhaist backpressure valve but i thought that it was only suppose to work when the truck was warming up. It is doing it all the time. Any ideas?
Senior User
Joined: Mar 2008
Posts: 436
Likes: 1
From: Mass
check the "exhaust back pressure tube" for cracks or holes. i just went through the same thing as you. i took off the tube to try and clean it out and found that where the tube bends and i couldn't see it there was a big crack on the bend of the hose.
new hose=no hissing+better engine running when cold
new hose=no hissing+better engine running when cold
Posting Guru
Joined: Dec 2007
Posts: 2,290
Likes: 2
From: SEMO
I see if I can find some pics.
Posting Guru
Joined: Dec 2007
Posts: 2,290
Likes: 2
From: SEMO
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