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Solved New member! Need help ASAP!

Discussion in 'Stock 1991 - 1994 Explorers' started by Lia Avila, August 24, 2017.

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    1. Lia Avila

      Lia Avila New Member

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      City, State:
      Oglala, South Dakota
      Year, Model & Trim Level:
      1991 Ford Explorer
      I recently purchased a 1991 Ford Explorer, everything ran great until several weeks ago. My engine overheats, radiator fluid bubbles and boils into the reserve tank but doesn't leak under the engine. Haven't seen any white smoke indicating a broken gasket. Checked the oil for any water spots, nothing. Got the thermostat changed out, still overheated. Bought a water pump, hopefully that works.
       
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    3. BrooklynBay

      BrooklynBay Moderator & long time member. Staff Member Moderator Elite Explorer

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      Welcome to this forum! What is the temperature range of the new thermostat?
       
    4. Lia Avila

      Lia Avila New Member

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      City, State:
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      1991 Ford Explorer
      It is a 195. The old one is a 195 as well.
       
    5. Turdle

      Turdle Freelance Stuntman Staff Member Moderator Elite Explorer

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      Check that the lower radiator hose is not getting soft and( collapsing) when drawing water thru the radiator. With engine up to temp , rev the engine and watch the lower radiator hose.

      Also, clean out the reservoir. junk will build up in there, allowing pressure to go into the reservoir, and since the nipple is on the bottom, it will settle there and clog when trying to flow back to the radiator.
       
    6. Lia Avila

      Lia Avila New Member

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      1991 Ford Explorer
      The bottom radiator hose is fine, I may have to replace the top hose. It slightly collapses. The reserve tank hose/plug is fine, there is no clog because when the engine cools down the radiator fluid goes right back into the radiator. I took the water pump out and that looks like it seriously needed to be replaced. Stay tuned for more updates.
       
    7. Lia Avila

      Lia Avila New Member

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      1991 Ford Explorer
      It was the water pump. Car is fixed now.
       
    8. Turdle

      Turdle Freelance Stuntman Staff Member Moderator Elite Explorer

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      Thanks for updating your thread. was the old pump impeller corroded ?
       
    9. Lia Avila

      Lia Avila New Member

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      City, State:
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      1991 Ford Explorer
      Yes, it was.
       

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