You can take a piece of the correct size of heater hose connected to both
sides of the unit and put a pipe tee in it with a bushing down to a schraeder
air fitting and put 20 or 25 psi pressure on it and dunk it under water and
look for bubbles. It works real well on heater cores.
51 GMC 5 window
>===== Original Message From "RonaldGivens" <RonaldGivens@msn.com> =====
>Can someone tell me how to check my heater control valve for leaks, or any
>other problem I may not know to look for, before I put it back on.
>51 gmc suburban
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959