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hissing sound

spiper

Well-Known Member
Joined
January 19, 2002
Messages
942
Reaction score
7
City, State
Wisconsin
Year, Model & Trim Level
2016 PIU
Whenever I shut off my 91X I hear this hissing noise coming from the drivers side of the engine. Sounds like air leaking. Lasts for about 30 secs then quits. Does anybody know what this is?
 




Lowrider

Member
Joined
March 6, 2001
Messages
13
Reaction score
0
City, State
new jersey
Year, Model & Trim Level
'94 XLT
Check out the power brake booster. They get slow leaks in them over time. Sits behind the master cylinder. The leaks usually come from the seal around the edges.
 




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