How do I bleed the air from the cooling system of a Chrysler Town and Country 3.8?

Discussion in 'General Motoring' started by ngpost1, Jan 24, 2007.

  1. ngpost1

    ngpost1 Guest

    Subject pretty much says it all. There is no radiator cap and the
    thermostat housing doesn't have a bleeder valve. Periodically, the
    van will run hot, and no heat out of the heater. After a minute or two
    it returns to normal and I have heat again. I have replaced the
    thermostat twice to no avail.


    ngpost1, Jan 24, 2007
  2. ngpost1

    jdoe Guest

    Why is there no radiator cap?
    jdoe, Jan 24, 2007
  3. ngpost1

    Mike Y Guest

    My Intrepid doesn't have a radiator cap.

    The system 'flows' through a coolant tank on the wheel well. This tank
    is NOT full, it has an air space. Fluid comes in and goes out as
    coolant circulates. Bubbles in the air 'should' collect at the top of the

    The problem is there can be some air pockets at the 'top' of the engine.
    My Intrepid has a 'bleeder' valve, similar to a brake bleed valve, on the
    top of the thermostat housing. Even with that, there can be air pockets.

    Actually, the system is pretty neat when it works. And usually it will
    'self bleed' as long as there's not other problems. When I refill after a
    flush, I squeeze the hoses until I can stop bubbling, but even then, the
    next few times I drive the thing I have to 'top it off' as the works itself
    into the tank.
    Mike Y, Jan 24, 2007
  4. Could try to run it until hot, release pressure by loosening the coolant
    tank cap. Do it a few times, may help get air out. Be careful of
    overspill, though, out of the tank, it bubbles out rather fast.
    Knifeblade_03, Jan 24, 2007
  5. ngpost1

    maxpower Guest

    The subject says everything except the year of the vehicle, If it is an
    older model just loosen the heater hose at the intake and let the air go out
    that way as you fill. If you replaced 2 thermostats and the problem is still have another problem. Is the coolant going low and you don't see
    any leaks?

    Glenn Beasley
    Chrysler Tech
    maxpower, Jan 24, 2007
  6. ngpost1

    philthy Guest

    if you have rear heat you have to drive it a couple times and each time check the coolant level
    philthy, Jan 25, 2007
  7. ngpost1

    ngpost1 Guest

    ngpost1The subject says everything except the year of the vehicle, If it is an
    2001 Town and Country with 3.8L
    ngpost1, Jan 26, 2007
  8. ngpost1

    damnnickname Guest

    ok, you ansered one out of 2 questions.

    damnnickname, Jan 26, 2007
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