1998 F150 question about noises

Discussion in 'Trucks and Trailers' started by kevB, Jun 6, 2005.

  1. kevB

    kevB LawnSite Member
    Messages: 8

    I have 98 F159 ext cab with it has 85k and I have owned it for 3 months now. When I turn it off, it makes noises. They come from the area in front of the glove box where (I believe) the heater core is located. It sounds like air bubbling up through the core. It is realy faint, but on a quiet day can be heard a little bit. Is this normal?
  2. RedWingsDet

    RedWingsDet LawnSite Gold Member
    from Detroit
    Messages: 3,556

    is it only when the ac is on? if so, its most likely nothing to worry about.
  3. kevB

    kevB LawnSite Member
    Messages: 8

    Good question. I will have to experiment some more. Thanks!
  4. Eddie B

    Eddie B LawnSite Senior Member
    from gone
    Messages: 859

    my truck does this, my minivan used to. It has something to do with the antifreeze. I guess it settles, or if air is in the system it all rises to the top when the engine stops and it stops flowing. Mechanic said its normal, but who knows.
  5. cndhaines

    cndhaines LawnSite Member
    Messages: 31

    sounds like the ac expansion valve orificing its totally normal it will sound like a hissing noise kinda and a gurgle some cars are louder then otheres

  6. 65hoss

    65hoss LawnSite Fanatic
    Messages: 6,360

    My 98 F150 I bought new. Its normal, done it since it was new.
  7. kevB

    kevB LawnSite Member
    Messages: 8

    Thanks guys for your responses! KB

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