How do I increase the water temp for winter

Discussion in 'General Motoring' started by Hola, Dec 7, 2004.

  1. Hola

    Hola Guest


    I use to just replace the thermostat in my older GM cars for a 190 degree
    but not sure how to increase the temp in my 96 Voyager 3.3L
    Can it be done because it seems when the temp needle is in the middle after
    warm up period its not all that hot.
    I don't have the rear AC or heat.

    Any suggestions would be appreciated.


    Hola, Dec 7, 2004
  2. Hola

    Joe Pfeiffer Guest

    I would expect that vehicle to already have a 195 degree thermostat.
    Why do you feel that it's "not all that hot?" Are you talking about
    the engine temp (as implied by the remark about the temp gauge) or the
    Joe Pfeiffer, Dec 7, 2004
  3. Hola

    Mike Guest

    Sounds like something else going on. My 96 caravan 3.3 engine temp gauge
    also sits right smack in the middle, using the original OEM thermostat, and
    it pumps out lots of nice hot heat from the heater.

    Maybe the heater core is partially blocked. I would also run the HVAC
    calibration test - maybe the heat is not actually going to full hot when you
    move the slider all the way to the right. You might also find a fault with
    the heat control motor.
    Mike, Dec 7, 2004
  4. A piece of cardboard blocking 1/2 of the radiator might help.
    Alex Rodriguez, Dec 7, 2004
  5. Hola

    Hola Guest

    Its the heat is insufficient, as like what happened today, we had freezing
    rain and I had it on defrost middle blower speed, temp gauge needle in
    middle. It was ok at a stop light which would melt the freezing rain but as
    soon as I start driving the freezing rain starts clogging on the windshield.
    I would think the heat should be strong enough to keep the freezing rain
    from freezing while driving.
    I bought the 96 Voyager used from a dealer, and by the maintenance records
    it looks well taken care of by a dealer etc... I have not check to see what
    temp thermostat is there. How about the electric cooling fans, at what
    engine temp do they turn on?


    Hola, Dec 7, 2004
  6. put a piece of cardboard in front of the rad.
    frank-in-toronto, Dec 7, 2004
  7. Hola

    Joe Pfeiffer Guest

    While we can't know what temperature the engine is really running,
    it's certainly somewhere that Chrysler called normal. have you
    checked for blockage in the heater core? Proper function of the
    blend-air door? If this vehicle can shut off water to the heater core
    when the heater is off, is that valve functioning?

    Jumping from "my heater isn't hot enough" to "I need my engine to run
    hotter in spite of the temp gauge" is quite a leap.
    Joe Pfeiffer, Dec 8, 2004
  8. Hola

    mike gray Guest

    The difference between thermostats will make no significant difference
    in the temperature of the air blowing on the windshield. Yer problem is
    in the air handling for the defroster or the heat exchanger (heater core).

    Make sure the defroster fan is working. Make sure there are no air leaks
    (feel around under the dash, there may be vents not closing), make sure
    the heater core is very hot.
    mike gray, Dec 8, 2004
  9. Hola

    Bill 2 Guest

    Did you try turning the fan on high? What is the temp knob set at? Full red
    Bill 2, Dec 10, 2004
  10. Hola

    Doug Guest

    I find that the heater output on my 2002 Caravan is marginal during
    bitterly cold days when the temp drops below 10 degrees F or so.

    On the standard Voyager/Caravan without the rear heater, the heater
    output in terms terms of BTU's is simply marginal in my opinion.
    The air does come out of the heater at a sufficiently hot temp.
    There is simply not enough capacity. When I put the fan on its highest
    speed, the air temp actually drops. This tells me that the heater core
    simply isn't adequate.

    I've also had the problem of ice forming on the windshield under such

    You are trying to heat a big box with a marginal heater.
    I doubt that there is much that can be done.
    My dealer has said that others have a similar complaint.

    In reality, if the standard heater was perfectly adequate, why would
    Chrysler/Dodge offer an optional rear heater???

    Doug, Dec 21, 2004
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