GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 3 of 3
  1. #1
    Jr. Engineer Falcone's Avatar
    Join Date
    Apr 2009
    Toronto, Canada

    Default Passanger floor is wet in my 92 Sonoma... Heat core bite the dust? How to dissconnect

    So the passanger floor in my reg cab somona is soaked... been damp for a bit and I figured the heater core was on the way out.. I'm toying with getting a new truck sometime really soon. But I want to just do a temp fix for now just so the floor isn't soaked all the time. How can I dissconnect the heater core so it stops leaking into my cab? If that is the problem, I've heard from a few guys it most likely is.

    Thanks for the help guys.
    2010 Sierra Nevada Edition
    4.8L Ext. cab - Black Z85 4x4 G80
    Shaved a couple badges and 4x4 stickers, DeeZee Red label Low Pro gloss black Brite plate cross box,DeeZee gloss black Brite plate bed rail caps , K&N,more to come.

  2. #2


    If you look in your engine bay, somewhere near the passenger side of the truck there should be 2 hoses coming through the firewall. One is the input line ot the heater core, the other is the out. If you get a repair kit from an auto parts store for a coolant line, you cut the hoses going through the firewall and connect them together. You thereby bypass the heater core. The engine temps may run a tad higher as a result, but it should not be catastrophic. I ran my suburban like this with my heater bypassed for months down here in the hot south with no ill effects.

    Something else you may want to consider, are you sure it's coolant that's on your floor? Does it have that weird sweet smell to it that antifreeze has? It may be a plugged drain somewhere that's just dupming water or melted snow in the cab.

    1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 200K miles
    2005 Saturn ION-2 Stock 277K miles
    1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half

    There are 10 kinds of people, those who understand binary, and those who dont...

    Remember kids, the only difference between screwing around and science is writing it down- Adam Savage

  3. #3
    Jr. Engineer Falcone's Avatar
    Join Date
    Apr 2009
    Toronto, Canada


    it smells like vinegar a little bit.. I thought maybe it was water.. but im not sure where it would all be coming in through.. where would I look fordrain holes? I might just do the bypass. I'm more then likely trading the truck in , in a couple weeks for a "new" (to me) truck.. I'm liking the newer serria's

Similar Threads

  1. 08 Silverado passanger air bag turn on?
    By 426florez in forum General Chevy & GM Tech Questions
    Replies: 4
    Last: 05-24-2010, 04:56 PM
  2. Replies: 0
    Last: 01-10-2010, 10:20 AM
  3. W/T floor mats for the plastic floor?
    By daweinah in forum Chevy Truck Accessories
    Replies: 3
    Last: 10-30-2009, 08:56 AM
  4. No heat up front, but heat in rear on '83 'burb
    By FUNFINDER in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 9
    Last: 04-20-2009, 02:50 PM
  5. Passanger Wiper Blade Wont Sit Flush
    By kiknit in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 2
    Last: 03-05-2008, 02:02 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts