Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Cooling System: Testing and Inspection



Cooling System, Checking For Leaks

Fig. 9:





- attach tester in place of pressure cap
Stant tester St-255 A, AC-PCT3 or equivalent

- apply pressure of approx. 1 bar (14.5 psi)
it pressure remains constant, system is OK
if pressure drops, look for leaks and eliminate