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
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Plugged Heater Core Test
PLUGGED HEATER CORE Check to make sure the engine coolant is at the proper level, then start the engine and let it run until it is warmed to operating temperature. Turn on the heater, feel the inlet and outlet heater water hose connected to the
heater core. If the inlet heater water hose is hot and outlet heater water hose is cooler, the heater core may be plugged.