Coolant reservoir leaking

Tiny
BETHANY_NASH40965
  • MEMBER
  • 2005 CHEVROLET EQUINOX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 139,000 MILES
Coolant reservoir is leaking from the bottom of it, did not see any holes in the tank or the hoses. When I take the cap off it leaks and when I start the car it leaks.
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Friday, August 17th, 2018 AT 3:13 PM

9 Replies

Tiny
ASEMASTER6371
  • EXPERT
Good afternoon.

Did the car overheat?

You may have a bad cap. Check and see if the rubber is damaged in the cap.

Does the tank leak with the cap on?

Is this where it is leaking?

Roy

https://www.2carpros.com/articles/coolant-reservoir-replacement

https://www.2carpros.com/articles/radiator-pressure-test

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Friday, August 17th, 2018 AT 3:52 PM
Tiny
BETHANY_NASH40965
  • MEMBER
It leaks with the cap on also but not bad as when the cap is off or the car started. It did get hot when it started leaking suddenly. I think it may be coming from the square looking hole that is in the bottom of the tank, but not completely sure.
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Friday, August 17th, 2018 AT 4:00 PM
Tiny
ASEMASTER6371
  • EXPERT
I would start with a radiator cap. Beyond that you will need to do a pressure test to find the exact failure.

Roy
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Friday, August 17th, 2018 AT 4:04 PM
Tiny
BETHANY_NASH40965
  • MEMBER
Okay, thank you so much.
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Friday, August 17th, 2018 AT 4:06 PM
Tiny
ASEMASTER6371
  • EXPERT
You are welcome.

Keep us updated.

Roy
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Friday, August 17th, 2018 AT 4:10 PM
Tiny
BETHANY_NASH40965
  • MEMBER
I got a new cap and put it on and it is still leaking when I start the car. The coolant in it that was left overnight was still in the tank this morning.
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Saturday, August 18th, 2018 AT 9:15 AM
Tiny
ASEMASTER6371
  • EXPERT
Okay, you need to rent a pressure tester and pressure test the system to find the leak.

It could be a hose, switch or the tank itself.

Roy
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Saturday, August 18th, 2018 AT 9:17 AM
Tiny
BETHANY_NASH40965
  • MEMBER
Okay, will do. Thank you.
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Saturday, August 18th, 2018 AT 9:28 AM
Tiny
ASEMASTER6371
  • EXPERT
You are welcome.

Please keep us updated.
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Saturday, August 18th, 2018 AT 9:29 AM

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