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?
Monday, April 15th, 2019 AT 9:42 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 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.

ImageOpen In New TabZoom/Print

2. Remove the lower radiator hose from thermostat outlet.

ImageOpen In New TabZoom/Print

3. Remove the thermostat outlet bolts and outlet.

ImageOpen In New TabZoom/Print

4. Remove the thermostat.
5. Clean the mating surfaces of the radiator outlet and the radiator outlet pip
Images (Click to make bigger)
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
+1
Monday, April 15th, 2019 AT 10:36 AM

Please login or register to post a reply.

Related Coolant Reservoir Content

Coolant Reservoir Replacement
VIDEO
Coolant Reservoir Replacement
Instructional repair video
Transmission Fluid in Radiator Coolant Reservoir
GUIDE
Transmission Fluid in Radiator Coolant Reservoir
All automatic transmission vehicles are equipped with an transmission fluid oil cooler, when transmission fluid is discovered inside the coolant reservoir or the radiator it...
VIEW MORE