5AT hissing sound when in MM mode
Joined: May 2003
Posts: 1,820
Likes: 3
From: Warshington
5AT hissing sound when in MM mode
Hi everyone,
I made a strange discover last night. I was at a drive through window (Mmmm In-N-Out!) and when the window was down I was messing around with the shift ****. When I pushed it into the MM gate and the "1" appeared, I heard this hissing sound start, coming from outside. I moved the shifter back to D and it went away. After further investigation, I found out hat I can only hear it when I am near a wall, in MM mode, idling. Taps of the gas make it either go away, or it is just masked by the engine sound. My assumption is that there is a vacuum hose loose/broken somewhere? Does the MM mode need some vacuum source that I don't know about? Anyone have any ideas? Thx y'all!
-drew-
I made a strange discover last night. I was at a drive through window (Mmmm In-N-Out!) and when the window was down I was messing around with the shift ****. When I pushed it into the MM gate and the "1" appeared, I heard this hissing sound start, coming from outside. I moved the shifter back to D and it went away. After further investigation, I found out hat I can only hear it when I am near a wall, in MM mode, idling. Taps of the gas make it either go away, or it is just masked by the engine sound. My assumption is that there is a vacuum hose loose/broken somewhere? Does the MM mode need some vacuum source that I don't know about? Anyone have any ideas? Thx y'all!
-drew-
Registered User
Joined: Jun 2003
Posts: 2,093
Likes: 0
From: NC
Re: 5AT hissing sound when in MM mode
I as well as Uhenada have noticed the same thing on our cars. The dealer has checked me out however and everthing was OK
2003.5 5AT
Premium Package
Tire/Wheel Package
K&N Filter, Z-Tube, EGK
2003.5 5AT
Premium Package
Tire/Wheel Package
K&N Filter, Z-Tube, EGK
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