IPD sale XeMODeX - Experts in Volvo Electronics

Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!

Coolant soaked floorboard soundproofing foam

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Post Reply
User avatar
smacknab
Posts: 454
Joined: Wed Sep 25, 2019 4:23 pm
Year and Model: 99 s70 NA Manual
Location: Boston
Has thanked: 73 times
Been thanked: 21 times

Coolant soaked floorboard soundproofing foam

Post by smacknab »

Hey friends while doing my AC evaporator I pulled back the driver's floorboard and found it was soaked in coolant. I replaced the heater core about 3 months ago and my coolant level has been steady since then. I'm assuming this coolant is left over from the old leaky core, or from my installation. Either way it was so soaked I cut out a square of the worst parts and I'm gonna try to clean and wet vac it, but I'm wondering if anyone knows an acceptable foam replacement. I'm thinking something from home Depot or available online. Alternatively I might go cut out the floor foam from a junkyard car in a week or two.
Attachments
IMG_20200430_145234.jpg
99 s70 NA Manual - >223k miles
Mods: Accidental C70 Delta link, V70 Left Dog Leg
User avatar
abscate
MVS Moderator
Posts: 23266
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 416 times
Been thanked: 1276 times

Re: Coolant soaked floorboard soundproofing foam

Post by abscate »

I think that is closed cell - if you can find a kiddie pool you can soak it three times, and then pronounce it coolant free.

I think I have foam from the 1998, too
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
scot850
Posts: 6410
Joined: Mon Apr 05, 2010 2:46 pm
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
Has thanked: 22 times
Been thanked: 287 times

Re: Coolant soaked floorboard soundproofing foam

Post by scot850 »

Chances it is either from before the core was replaced or leakage from doing the swap out. As you are in there, check the 'O' ring seals at the connection for the heater core for telltale drip runs. If yo have none and coolant level is staying level the you should be ok. I had one of my cars with a leaking core when bought. Used a shop vac and then a carpet cleaner with carpet soap. Cleaned up well. Like abscate I believe it may be closed cell foam.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold
my98s70glt
Posts: 20
Joined: Mon Dec 16, 2019 7:54 pm
Year and Model: 98 S70 GLT; 07 V70 2
Location: Concord, NC
Has thanked: 9 times
Been thanked: 5 times

Re: Coolant soaked floorboard soundproofing foam

Post by my98s70glt »

I experienced same issue with my car... previous owner changed the heater core a few years ago and never dried the passenger floorboard. I only noticed it a few weeks ago when I was installing an amp I picked up. I cut out the foam and took out the carpet... soaked with water and let hang dry for a few days in the sun then reinstalled the foam with tape. It’s dry now, so good enough for me.
Attachments
7072265E-F4EC-4F3B-95D0-1ED8F33BBE31.jpeg
7072265E-F4EC-4F3B-95D0-1ED8F33BBE31.jpeg (201.1 KiB) Viewed 136 times
C4B9DCD2-E2DE-4CE5-A6D1-F2D619E06653.jpeg
C4B9DCD2-E2DE-4CE5-A6D1-F2D619E06653.jpeg (103.32 KiB) Viewed 136 times
Current:
1999 V70R: Signal Red/Charcoal || Snabb RIP Kit || Snabb Air Intake || Simons Axleback Dual Exhaust

2007 V70 2.5T: Snabb Fresh Air Pipe || BC Racing Coilovers

1998 S70 GLT: T5 ECU || 16T Turbo || White Injectors || Snabb RIP Kit || Snabb Fresh Air Pipe || Bilstein Touring || Eibach Lowering Springs || 17” Neptunes

Previous: 2006 V70 2.5T, 2011 C70 T5, 2012 S60 T5, 2000 S70 GLT/SE
User avatar
smacknab
Posts: 454
Joined: Wed Sep 25, 2019 4:23 pm
Year and Model: 99 s70 NA Manual
Location: Boston
Has thanked: 73 times
Been thanked: 21 times

Re: Coolant soaked floorboard soundproofing foam

Post by smacknab »

Thanks for the help friends, I shop vac'd it, soaked it in hot water with bleach, vac'd again, soaked again vac'd again, then let it hang in the sun. Seems good enough for me!
99 s70 NA Manual - >223k miles
Mods: Accidental C70 Delta link, V70 Left Dog Leg
Post Reply
  • Similar Topics
    Replies
    Views
    Last post