Johnny

[jgoss1941]

porter cable pancake compressor model cpfac2040p1, tank pressure reaches 40lbs. will not go higher keeps running, never goes any higher.

[UtahAV]

Hi jgoss1941,

That is the classic symptom of a worn out cylinder and piston. Both of the parts will need to be replaced. The cylinder and piston come in a replacement kit. The kit is part #KK-4964.

I hope this helps out!

-UtahAV
-Mark