• Tiny
  • pmp
  • 1998 Honda Civic
  • 4 CYL
  • 4WD
  • automatic
  • 148,000 miles

Hi, I got the cooling system pressure test kit from advance auto. I was wondering whats the most pressure I should I put and how much pressure I need to check the cap. I have a small leak somewhere. Also how would I know if its a head gasket leak theres no coolant in my oil. Ty

Sunday, October 23rd, 2011 AT 9:52 PM

1 Answer

  • Tiny
  • Wrenchtech
  • Expert
  • 19,840 posts

Head gasket leaks can be very hard to verify and sometimes pressure testers are inconclusive. You should not exceed the rated cap pressure by more than a pound or two. The cap pressure should be printed right on it.

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Tuesday, October 25th, 2011 AT 11:24 PM

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