som3on3_10

Car is a 95 Civic Ex. If all 4 cylinders are reading approx. 180 psi does this mean that the head gasket in good condition or do I have to do a leak down test also? My car has mysteriously been losing coolant and I have no leaks (there are no drips on the driveway). No milky oil or white smoke coming out of the exhaust. However, sometimes when I start the car in the morning it kind of shakes. I have to give it some gas then it goes away (I don't know if that means anything, just thought I'd throw that in). So is my head gasket fine or is a leak down necessary?

Jay_Sensing

A compression test can come out good and the headgasket still be bad.

I have that problem right now. It can blow at a water jacket from temp and not effect compression at all.

som3on3_10

Cool. I actually went to my garage after posting this and started up my car to normal operating temperature. Told someone to give it some gas while I stood behind it. Noticed water and a little white smoke coming out of the tailpipe everytime it was given gas...head gasket it is!

RyanEJ8

Headgasket leak won't show in a compression test, but may show up in a leakdown.