wiper tray thinks it's cowl induction !
Thread Starter
Instructor
Joined: May 2006
Posts: 171
Likes: 0
From: Boston ma
wiper tray thinks it's cowl induction !
ok Help,
My 72 wiper tray opens up every time I throttle up...
something wrong with the vac lines ?
My 72 wiper tray opens up every time I throttle up...
something wrong with the vac lines ?
Last edited by fuelie65; Apr 24, 2007 at 10:53 PM.
Racer
Joined: Jan 2007
Posts: 325
Likes: 0
From: Ocala FL
Here's a really good link to vacuum troubleshooting
http://vetteworks.tripod.com/techdocuments/Vaccum.html
It sounds like there isn't enough vacuum "stored" in the reservoir, so likely causes are check valve or a significant vacuum leak.
The high vacuum "stay closed" signal to the wiper door relay is lost when you throttle up, but there's still enough vacuum to drive the actuator.
http://vetteworks.tripod.com/techdocuments/Vaccum.html
It sounds like there isn't enough vacuum "stored" in the reservoir, so likely causes are check valve or a significant vacuum leak.
The high vacuum "stay closed" signal to the wiper door relay is lost when you throttle up, but there's still enough vacuum to drive the actuator.
Veteran
Joined: Oct 2005
Posts: 1,284
Likes: 81
From: Nashville, TN
