Hi everyone,
I need help on Aux. Coolant Pump.
The pump was not working, I replaced it with a new one. Bled the system and I got very hot air even at idle in this cold Toronto weather. However, the next day, pump stopped working. I pulled out the electrical connector and connected the pump to a 12v battery and it worked. Just wondering what could have caused the pump not working when it's connected only after one short trip. I checked all the fuses in the glove compartment and every looked ok. I tested the connector with ignition on but engine not running and cold, and I got 2.7v with fan turned off, and 9.1v turned on, on the connector. It is a 2 pin connection, one positive and one negative, as the pump body is plastic.
Any guidance would be much appreciated.
Thanks