leaking coolant

1999 MERCURY SABLE
125,000 MILES • 6 CYL • FWD • AUTOMATIC
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STUPIDNAME53
  • MEMBER
  • 4 POSTS
My car is leaking coolant, some of it is ending up in the engine oil, has anyone had any experience with dura seal head gasket sealer? The car is only worth $500-$600, so to put on head gaskets is worth more than the car.

How do I check the head gasket and should I try those sealers?
Mar 16, 2011 at 6:19 AM
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KASEKENNY
  • ✓ASE Certified Mechanic
  • 18,907 POSTS
  • ASE Certified Mechanic
This does sound like a head gasket so we need to do a couple things to confirm this.

First here is a guide that will show how to test it:

https://www.2carpros.com/articles/head-gasket-blown-test

Also, we can pressure test the system and inspect the cylinders for moisture but the head gasket test is more accurate.

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

Next here are a couple links to videos that review one of the top brands of these sealers:

https://www.youtube.com/watch?v=Xi41RFMP8Ow

https://www.youtube.com/watch?v=iuEVLFEF0AM

Please run through all this material and let us know if you have other questions. Thanks
Jul 18, 2021 at 10:20 AM
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