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Overheating coolant tank

Tiny
LINDA VAN ELSWYK
  • MEMBER
  • 2001 CHEVROLET CAVALIER
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 19,500 MILES
It has happened everytime I take off my coolant cap to check coolant level. The car heats up even after I add coolant. I make sure the cap is on tight. There are no signs that there is a leak until yesterday when I looked, the low fluid light went on. But there were, once again, no signs of leakage, at least while I was parked. What next?
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Monday, April 15th, 2019 AT 9:42 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

It is possible the thermostat is bad causing it to run hot. It will also expel coolant out the tank.

I would start by replacing the thermostat.

Do the cooling fans work?

Roy

Removal Procedure

1. Drain the cooling system.

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2. Remove the lower radiator hose from thermostat outlet.

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3. Remove the thermostat outlet bolts and outlet.

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4. Remove the thermostat.
5. Clean the mating surfaces of the radiator outlet and the radiator outlet pip
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Monday, April 15th, 2019 AT 10:36 AM

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