David, Testing for rear heater leaks and having a blower motor that will not turn on are unrelated. The on/off valve, located on the rear heater unit itself, just blocks or opens one of the heater hoses to restrict or allow flow. In other words, when the cooling system is up to operating pressure, the heater hoses and heat exchanger are pressurized regardless of the valve position. Pulling the valve actuator toward the front of the van should allow flow and will cause the heat exchanger to heat up as the engine coolant heats up .... assuming the PO didn't bypass the heater ... external to the cabin. Bring the Van up to operating temperature then gently wiggle the valve and hoses. Sometimes the valves leak .... sometimes the O ring where the valve sits on the heat exchanger leaks ... and sometimes the core itself might leak. Oh, I almost forgot to mention .... sometimes none of 'em leak ..... heheheheh. Mike '84 GL 7 pass '85 GL Westy Ok... Took apart the rear seat and took a look at the rear heater, have some solidified (white powdery stuff) coolant on the fins and around one of the hoses but no sign of liquid anywhere... I tried running the heater to see if I smelled any coolant or saw any leakage, but the motor will not turn on... What's an easy way to test if I have a bad heater or bad switch? Thanks, David / NJ Former owner of a 76 Westy (sniff, miss ya Wanda) New owner of an 85 Westy Weekender Wolfsberg |
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