Water running sound behind dashboard

Discussion in '80-Series Tech' started by muddernewbie, Mar 25, 2017.

  1. muddernewbie

    muddernewbie

    Messages:
    10
    Likes Received:
    0
    Joined:
    Mar 1, 2016
    Location:
    Tacoma, WA
    Hey all! I just picked up my first FJ80! It has a sound when accelerating above 2000 RPM and at an incline like water is running behind the dashboard (sounds like it's behind the radio or passenger side). The A/C doesn't work so I'm thinking the drain tube is blocked? Not sure where to go from there, thanks for any inputs!
     
  2. AlaskanLX450

    AlaskanLX450

    Messages:
    172
    Likes Received:
    92
    Joined:
    Jan 26, 2013
    Location:
    Anchorage Alaska
    Check your coolant level, I bet there is air pockets in the system. When filling it, remember to get the right funnel that allows the level of coolant in the radiator to get higher than the heater valve.
     
    Izzyandsue likes this.
  3. muddernewbie

    muddernewbie

    Messages:
    10
    Likes Received:
    0
    Joined:
    Mar 1, 2016
    Location:
    Tacoma, WA
    Awesome, thanks! Coolant level is good but I did just have the fluid flushed and hoses replaced before this started happening! I'll have them check the system for air!
     
  4. dcx13

    dcx13 Life's too short for bad coffee. SILVER Star

    Messages:
    119
    Likes Received:
    72
    Joined:
    Sep 11, 2016
    Location:
    San Francisco, CA
    Also, check that the drains along your rockers are clear. I just had the same issue (sloshing water sound), and it was a blocked set of drains along the passenger side rocker panel's pinch weld. I pulled the rubber drain plugs out, and had about a half gallon of water dump out!! It's an easy enough fix, but you might get wet in the process.
     
    FJP971 likes this.
  5. muddernewbie

    muddernewbie

    Messages:
    10
    Likes Received:
    0
    Joined:
    Mar 1, 2016
    Location:
    Tacoma, WA
    Cool, time to start looking lol
     
  6. dcx13

    dcx13 Life's too short for bad coffee. SILVER Star

    Messages:
    119
    Likes Received:
    72
    Joined:
    Sep 11, 2016
    Location:
    San Francisco, CA
    Look for some roughly dime sized plugs along the underside of the rocker panel. It's best if you're parked on a slight incline, since any water will be sent to one end, and drain a bit more efficiently. Then use a bit of stiff wire/end of zip tie/small flat blade screwdriver, and poke/clear out the slit drains along the pinch weld. Give a good shot of WD40, or similar moisture displacer, into the rockers, then pop your plugs back in & have a tasty beverage!
     
  7. muddernewbie

    muddernewbie

    Messages:
    10
    Likes Received:
    0
    Joined:
    Mar 1, 2016
    Location:
    Tacoma, WA
    Awesome, great advice
     
  8. muddernewbie

    muddernewbie

    Messages:
    10
    Likes Received:
    0
    Joined:
    Mar 1, 2016
    Location:
    Tacoma, WA
    As a follow up, the tube running into the auxiliary coolant reservoir was missing so the engine was sucking air in instead of coolant. Easy fix!
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.