Probably broke when your wife used it for a hammer .

i had a similar problem with my old snap on tester,the schrader valve was bad,i replaced the schrader and all is well.

I could try that. There is one inside and another on the outside to release the pressure. I'll put a new one on the inside and try it before I buy a new one. That won't take long.

Yay! 135 psi, engine cold, throttle closed. Manual says 140 w/engine warm & throttle open. I'm good! So this morning I'm looking at my 30+ year old compression tester and I'm like, ah, no, not gonna try to fix it. Bought a new one.

good deal...cheaper than engine repair !

Good news. You can now resume breathing. LOL

im glad your problem turned out to not be a real problem,no go and buy a lottery ticket because you are lucky.

Thanks guys. I was worried there for a little while. I lost a Bravo XR upper this year from a nut backing loose inside and the money tree has been plucked clean. Now to finish the winterizing and get ready for another Michigan winter.

and carl,,when its time for a valve job look into a set of afr heads....

Does a 6 ft. hose give a lower reading?