Vac leak problem (searched)
#1
Rotary ≥* Soul
Thread Starter
Join Date: Dec 2003
Location: Oregon
Posts: 785
Likes: 0
Received 0 Likes
on
0 Posts
Vac leak problem (searched)
Iluvmyrx7.com is down and i couldnt find any S4 specific things when i searched SO... Where in bloody hell does this vac line go!!! Could this be why my car wont idle on its own in the mornings? After it warms up it idles fine but when i'm on the brakes it bounces around.
#5
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
Oh darn. That nipple goes to the double throttle diaphram on the right side, towards the front of the throttle body. There is a green/white checkvalve inbetween the two items.
First check and see if your double throttle diaphram is good or bad. If bad, the consider just capping off the nipple shown in your photo.
The double throttle diaphram is used to close the outboard secondary throttle plates on a cold engine. They, the secondary throttle plates are spring loaded to the wide open position if the double throttle diaphram fails. Unlike a turbo engine.
There's a free, online, factory service manual who's url is on this site. Look in the FUEL section for non turbo cars.
First check and see if your double throttle diaphram is good or bad. If bad, the consider just capping off the nipple shown in your photo.
The double throttle diaphram is used to close the outboard secondary throttle plates on a cold engine. They, the secondary throttle plates are spring loaded to the wide open position if the double throttle diaphram fails. Unlike a turbo engine.
There's a free, online, factory service manual who's url is on this site. Look in the FUEL section for non turbo cars.
#7
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
My wife's 1986 sport has that water thermo valve that feeds vacuum to the DOUBLE THROTTLE DIAPHRAM. And I'm fairly sure there is a very good picture in the online, free, factory service manual. Fuel Section for non-turbo cars.
Trending Topics
#9
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
My BAD. I didn't notice the third nipple. That is for an automatic transmission. I just looked online at the free, online fsm. It, that third nipple is for autotransmissions. So do you have an autotransmission. NO? Then just cap it off and be on your way. Page 4A53 and 4A57 of the 88fsm.
#12
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
Originally Posted by 86GXL
Um no i dont have an auto. So maybe somone converted to a 5spd? Can you post up the link to the FSM so i can snoop around?
Thread
Thread Starter
Forum
Replies
Last Post