1992 Mercury Sable overflow

1992 MERCURY SABLE
122,000 MILES • 6 CYL • FWD • AUTOMATIC
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JBEE1119
  • MEMBER
  • 1 POST
coolent is being pushed out of the overflow tank, i replaced the cap, but it still does it, i also flushed the system, and it was quite rusty, what else can i do, also no heat, and i run low on fluid
Dec 7, 2008 at 1:19 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi jbee1119,

Thank you for the donation.

When coolant is being pushed out to the reservoir, pressure in the system is high which is due to inefficient cooling or a bad head gasket.

You mentioned low on fluid, I take it to mean it is the coolant?

If the radiator coolant level is low and reserve tank overflowing after the engine cools down, the head gasket is bad.

Apart from above, other possible causes are,
1. Bad water pump
2. Clogged coolant passages or radiator
3. Weak or faulty cooling fan.
Dec 7, 2008 at 2:37 AM
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