water "sloshing" in dash
#1
Junior Member
Posts like a Ricer Type-R
Thread Starter
Join Date: Jan 2004
Location: Georgia
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
![eds2000bonn is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
:?: For the past several months, I hear the sound of water "sloshing" around under the dash when turning, stopping, of accelerating my 2000 Bonneville. I suspect a clogged A/C drain, however is does appear to be draining. Ive tried to blow out the drain with compressed air, but no luck. Any similar conditions or thoughts on this?
#2
Senior Member
True Car Nut
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Likes: 0
Received 0 Likes
on
0 Posts
![PontiacDad is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
I have read over and over through the gm service site and could not find an answer for you. I suspect it may be an air lock but could find no reference to it.
Other than the sound is the hvac system working properly?
Other than the sound is the hvac system working properly?
#3
Guest
Posts: n/a
![Default](https://www.gmforum.com/images/icons/icon1.gif)
i worked on a newer style caravan a few months ago. same problem. i thought the a/c drain was blocked too. it wasnt, here is what it was. under the cowl vents at the bottom of the windshield. there are drains so the water doesnt build up and flow into the heater box. after removing the cowl covers, there were a few leaves that had the drain blocked. when it would fill up, it drained it into the heater box, and not the side where the a/c drain is. i had to remove the blower fan, and use my vac pump and get all the water out of the heater box. and also remove the leaves that were blocking the drain.
had no problems since with it.
hope this helps you
had no problems since with it.
hope this helps you
#4
Junior Member
Posts like a Ricer Type-R
Thread Starter
Join Date: Jan 2004
Location: Georgia
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
![eds2000bonn is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
Thanks. The clogged cowl drain sounds feasible... I'll try to check it out this weekend. Not sure what will be accessible, and how difficult to get to the areas.
#5
Senior Member
True Car Nut
Join Date: May 2002
Location: Edmonton, AB Canada
Posts: 2,621
Likes: 0
Received 0 Likes
on
0 Posts
![DeathRat is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
Originally Posted by eds2000bonn
Thanks. The clogged cowl drain sounds feasible... I'll try to check it out this weekend. Not sure what will be accessible, and how difficult to get to the areas.
![Wink](https://www.gmforum.com/gm/images/smilies/icon_wink.gif)
#7
Guest
Posts: n/a
![Default](https://www.gmforum.com/images/icons/icon1.gif)
im wasnt talking about the drain for the a/c and the blower case.
i am talking about the drain area for the cowl. when water hits the windshield, it runs into the cowl area and has to go somewhere. there is usually a place for it to run off . if there are leaves and crap in that area, the water will run inside the car via the air inlet at the cowl, and go straight into the airbox for the heater and a/c. there is only one area of the blower case that drains at the drain tube, abd that is the evap. core area due to condesation when the a/c is on
i am talking about the drain area for the cowl. when water hits the windshield, it runs into the cowl area and has to go somewhere. there is usually a place for it to run off . if there are leaves and crap in that area, the water will run inside the car via the air inlet at the cowl, and go straight into the airbox for the heater and a/c. there is only one area of the blower case that drains at the drain tube, abd that is the evap. core area due to condesation when the a/c is on
#8
Junior Member
Posts like a Ricer Type-R
Thread Starter
Join Date: Jan 2004
Location: Georgia
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
![eds2000bonn is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
I follow you jeffrey10x2. Will try to figure out how to get to the heater box area. I had already cleared the a/c evaporator drain with no luck. FYI, the bonneville drain tube makes a 90 degree turn into the evap collection box... must use care using a hanger. I used a flexible tube and compressed air to blow it clear / check for obstructions.
#9
Junior Member
Posts like a Ricer Type-R
Thread Starter
Join Date: Jan 2004
Location: Georgia
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
![eds2000bonn is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
![Very Happy](https://www.gmforum.com/gm/images/smilies/biggrin.gif)
#10
Senior Member
True Car Nut
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Likes: 0
Received 0 Likes
on
0 Posts
![markwb is on a distinguished road](https://www.gmforum.com/images/reputation/reputation_pos.gif)
![Default](https://www.gmforum.com/images/icons/icon1.gif)
Originally Posted by eds2000bonn
![Very Happy](https://www.gmforum.com/gm/images/smilies/biggrin.gif)
Thread
Thread Starter
Forum
Replies
Last Post