water leak on passenger floor board.

Hello, I have a 1988 244. The car is in great shape, but I went to vaccume it yesterday and found that the right passenger floor board carpet was soaked. I had the winshiled replaced about 1 and a half years ago, but I don't think that should be the problem, but I'm not sure what is. I tried blasting out the rockers yesterday, but I guess that didn't do a lot of good. Would the wiper motor cause this? If so, why, as I have never had it off. Thanks for nay information and happy bricking.

Thanks guy for the info. I thought that I had this prolem figured out. It seemed like the waster was dripping out of the shaft for the wiper pivot point. With this, I have orderd that seal. It should be here next week. After washing the car yesterday, it did not leak though, and then I drove the car about 20 miles last night, and I found that he floor is wet again. So, at this point I'm wondering if this is coming from the wiper motor shaft, of if somehow waster is being blown up there by the heater fan when it is on. Thank for any information and happy bricking.

You have 2 high probabilities, and it's likely the first one:

1) Bad radiator heater core

2) Clogged AC condensate drain

To fix #1, get a Haynes or Bentley shop manual, look up the procedure to remove and replace (it's pretty easy) and you can buy a new heater core from IPDusa.com or alloemvolvoparts.com or take the one you have to a radiator shop to have it recored. NAPA might also sell new or rebuilt heater cores. Be sure to replace the heater hoses and clamps, and if your car is a later model, there may be a check valve that you MUST replace (if not you can have a catastrophic engine coolant loss). That part is available from a Volvo dealer. I am 99% sure this is your problem. If the car fogs up when you start it, and/or smells like coolant this is your problem for certain.

To fix #2, again, use the shop manual, then use compressed air to blow the drain out, or just replace the hose (you can get new hose at any NAPA shop).

When you are at it, you ought to drain and replace all the coolant and replace the radiator hoses and the thermostat. It's about $40 in parts all totaled (not including the heater core), and is a very wise preventive maintenance procedure that can save you a lot of headaches coming up on the summer season.

Good luck.

If you search the Brickboard, you'll find lots of postings about how water can get in, and how to stop it. Briefly (and all from memory): windshield gasketing, hole for antenna or antenna cable (if there's one in a front fender), plugged drain line from sunroof, plugged drain holes in door , plugged drain holes in car body door sill, plugged drain from heater core in the dash, worn gasketing around wiper motor shaft and mounts, and they're probably more, both because I can't remember and because some prior owner might have drilled through the body for some unknown nefarious purpose.
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David Brick, Santa Cruz CA, 1988 245

My 1991 240 had the same problem. Turned out to be the a/c condensate drain line had , for some reason, worked itself out of the hole in the floor of the car. It is a about a 3 inch long S shaped hose under the dash to the left of the passanger floorboard. Anyway, once I located it, cleaned it out and reinstalled it, the problem was solved. By the way, you might want to check under the floor mat on the rear passanger side to if you have not. Mine was saturated front to back.