Volvo taking on water, don't know what else to fix

Status
Not open for further replies.
Joined
Nov 22, 2005
Messages
658
Location
Charlotte, NC
I am stumped. Have had my '90 740 wagon for 3 months and she's always taken on water during rain. The water gathers and hangs ten in the front and rear passenger side floor. Sunroof drain isn't clogged. I resealed the plastic cover behind ECU. Yesterday, removed cowl and resealed fan cover which was loose and definitely allowed water to come in via the blower. Rained last night and same [censored] puddle in floor. Where else could water infiltrate?
 
Joined
Apr 23, 2012
Messages
1,462
Location
East Mountains, NM
Windshield gasket. Any sort of hole, under the rear section of the hood, where it covers above the firewall. Plugged drains in the bottom of the doors. Try to find it with a helper with a hose. You inside the car, helper training hose in different places until you find the inrush of water. Good luck.
 
Joined
Feb 6, 2010
Messages
219
Location
Salem, SC
I had the same thing on my Cherokee with the antenna wire. Make sure there is a decent grommet/gasket or the water will run down the wire.
 

Astro14

$100 Site Donor
Staff member
Joined
Oct 10, 2010
Messages
15,461
Location
Virginia Beach
Sunroof drains (there are either 2 or 4 on this car) being plugged are a common cause of water on the floor. How did you verify that the sunroof drains are not plugged?
 

Brandon Gatz

Thread starter
Joined
Nov 22, 2005
Messages
658
Location
Charlotte, NC
Blew out both drains with compressed air, poured bottle of water in sunroof guttering to visually confirm at bottom drain exit.
 
Joined
Aug 19, 2010
Messages
10,268
Location
Champlain/Hudson Valley
Check the hardware mounted on the B pillar. The B pillar is the one the front doors strike onto and the rear coos hinge upon. Door strikes and hinges often have gaskets where they mount against the hallow pillars. Kira
 
Joined
Aug 2, 2014
Messages
1,471
Location
Gulf Coast, MS
Theses sun roofs are notorious for leaking even in the smallest gaps. I would seal mine every year with silicone and still could never get it to stop leaking. I was very successful in the since it rarely happened but its never fun coming to a stop at a red light and having a cup of water poured on you head/back of your neck..
 
Joined
Sep 2, 2005
Messages
8,477
Location
MIchigan
Might have to take off the fresh air intake panel and clean the debris out of there and blow out the drain hoses. It's the panel/grill between the hood and the windshield.
 
Joined
Jun 15, 2003
Messages
37,950
Location
ME
I had one of these with a rust hole in the floorboard. There's a brace at about the front of the seat track and the hole was under/above this brace and hard to see/find.
 

Nick1994

$100 site donor 2022
Joined
Feb 19, 2013
Messages
14,983
Location
Phoenix, AZ
Sit in the car while someone gets the hose out and hose off the entire car in every area possible.
 
Status
Not open for further replies.
Top