What do these hoses do?
Thread Starter
Junior Member
Joined: Feb 2006
Posts: 11
Likes: 0
From: Upstate SC
Car: `92 25th ann. Z28
Engine: 350 TPI
Transmission: 700 R4
What do these hoses do?
What are the 2 hoses that plug in the side of the throttle body for?Vaccum lines?One of mine are pinched off.What could this cause?
Supreme Member
iTrader: (8)
Joined: Jan 2000
Posts: 3,968
Likes: 1
From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Top one is not a vacume line. Its part of the fresh air breather system. Crankcase gasses come up through the passenger side of the motor , into the valve cover, out the hole, into the hose and to that fitting. The lower port is a vacume line and is connected to the charcoal canister which burns off excess gas fumes from your gas tank.
Thread
Thread Starter
Forum
Replies
Last Post
Pac J
Tech / General Engine
3
May 17, 2020 10:44 AM
2012sergen11
Engine/Drivetrain/Suspension Wanted
6
Oct 13, 2015 07:38 PM