wiper door opens 69
Thread Starter
Melting Slicks
Joined: May 2012
Posts: 2,192
Likes: 345
From: Allenton Wisconsin
wiper door opens 69
wiper door opens on its own, if I reach under the dash and fiddle [ that's a technical term] with the solenoid it will close then reopen. what is the purpose of the solenoid? the override works properly. thanks T
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
What solenoid are you reaching under the dash and fiddling with?
If the wiper door burps open and closes on its own, check the white plastic in-line filter in the vacuum supply line from the manifold fitting.
If the wiper door burps open and closes on its own, check the white plastic in-line filter in the vacuum supply line from the manifold fitting.
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
The solinoid under the dash is the initial signal telling the door to open. If it comes up on start up, shut down or heavy acceleration its likely the check valve. If it stays up all of the time, there is no signal vacuum to the system.
Drifting
Joined: Jul 2006
Posts: 1,259
Likes: 154
From: Deplorableville Nebraska
what is the purpose of the solenoid?
the override works properly.
if I reach under the dash and fiddle [ that's a technical term] with the solenoid it will close then reopen.
Your problem lies either in the wiper relay, the wiper safety valve, or both. If they are still original equipment I guarantee it.
Thread Starter
Melting Slicks
Joined: May 2012
Posts: 2,192
Likes: 345
From: Allenton Wisconsin
The solenoid switches control vacuum to the wiper relay after passing through the override and the wiper safety switch. It is activated by the wiper switch. The default (non-energized) position of the solenoid is to allow vacuum to pass through it to keep the wiper door closed. When the wiper switch is activated, the solenoid cuts off control vacuum to the same parts to allow the wiper door to open.
If the override works properly, the solenoid has to be functioning ok.
There is a bleed port on the solenoid you may be fiddling with. Possibly blocking it off will allow control vacuum to remain in the system to close the door.
Your problem lies either in the wiper relay, the wiper safety valve, or both. If they are still original equipment I guarantee it.
If the override works properly, the solenoid has to be functioning ok.
There is a bleed port on the solenoid you may be fiddling with. Possibly blocking it off will allow control vacuum to remain in the system to close the door.
Your problem lies either in the wiper relay, the wiper safety valve, or both. If they are still original equipment I guarantee it.
