94 Voyager - the rest of the story

Discussion in 'Voyager' started by gtb, Feb 14, 2008.

  1. gtb

    gtb Guest

    I took the heater core hose that comes from the water pump (thru the
    metal pipe under exhaust manifold) loose at the firewall. There was no
    water coming from the pump. I also took loose the small hose at the
    thermostat that comes from the water pump as it was easiest to get
    to. I was able to blow back from the heater end and have water come
    out at the thermostat end of the hose. The top radiator hose gets warm
    and the gauge runs mid scale when the engine is warm. Just drove it
    180 miles yesterday no overheating problems. Why can I blow back thru
    the pump but no water will flow to the heater?

    BTW, I did have to have head gaskets replaced recently but heater
    problem was the same before and after. But the shop said there is no
    such thing as a weak water pump, it either works or it doesn't.
    gtb, Feb 14, 2008
  2. gtb

    aarcuda69062 Guest

    This was with the engine running?
    aarcuda69062, Feb 14, 2008
  3. gtb

    Bill Putney Guest

    I don't know how the impeller is constructed on the Voyager water pump,
    but this would not be the first vehicle in which a plastic impeller
    would have come loose from the shaft, or completely exploded into
    pieces. That would leave things open for flow, but nothing to pump the
    water. Sound familiar?

    Bill Putney
    (To reply by e-mail, replace the last letter of the alphabet in my
    address with the letter 'x')
    Bill Putney, Feb 14, 2008
  4. gtb

    gtb Guest

    Yes. Maybe the impeller is loose or some blades are missing but there
    is enough flow for water to run through the radiator.

    gtb, Feb 15, 2008
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