Originally Posted by kerry
Somebody posted on here recently that it requires full heat on the temperature wheel or defrost to get the aux pump to kick in.
I have exact same issue on my 84. The wheel position does not have to be on full heat for the pump to come on.
For the time being I replaced the monovalve with an L-shaped 1/2 copper pipe just to get more water into the heater core.
Haven't figured out yet what really turns the aux pump on. All fuses are ok.
the sooner you start... the sooner you'll get done
If it ain't broke, don't fix it..
Its always simpler to tell the truth...
2007 Honda Accord EX
2007 Honda Accord SE V6
97 Explorer - For Sale
85 300D - For Sale
84 300D - Found Another Home
80 300TD - Found Another Home