Got around to replacing the aux coolant pump to fix my low/no heat at idle. Pretty easy job, just take air intake tube off and the "T" shaped coolant line right by the radiator and its right there. Thanks to this board for helping me know what to fix. Bled the system and all is like new again.
I decided to dissect the old one and the only thing wrong with it was the brushes on the electric motor. I got an open resistance reading after removal so I popped it apart and put the brushes back in place (used fishing line to hold the springs back off the brushes while putting it together). I got 3.5 ohms and tested it in a bucket and it works fine now. Sure is a lot of money to spend, even when doing the job yourself, for a couple of bad brushes. I'll try to find if they can be purchased somewhere.
I decided to dissect the old one and the only thing wrong with it was the brushes on the electric motor. I got an open resistance reading after removal so I popped it apart and put the brushes back in place (used fishing line to hold the springs back off the brushes while putting it together). I got 3.5 ohms and tested it in a bucket and it works fine now. Sure is a lot of money to spend, even when doing the job yourself, for a couple of bad brushes. I'll try to find if they can be purchased somewhere.