wiring Trans/Diff fluid pumps
Thread Starter
Instructor
Joined: Feb 2019
Posts: 143
Likes: 24
From: NV
wiring Trans/Diff fluid pumps
Quick question for the crowd. I am installing both Trans & Diff coolers into my C5. Each pump is <10 Amps, and I cant see a situation where I would not run both pumps at the same time. Anything I missed in my primitive wire diagram? I will have a single switch in the cabin to activate the relay. Thanks in advance for your thoughts.
Drifting
Joined: Mar 2015
Posts: 1,421
Likes: 302
From: CSRA, SC
Looks good nothing too complicated. Make sure to select your wire gauge and fuse rating carefully considering the length of wire and the possibility that the failure might not be a short to ground but may instead be a locked pump motor. If you need some help with this let's talk about how long the wires are from the fuse and what the locked rotor condition could be.
Drifting
Joined: Mar 2015
Posts: 1,421
Likes: 302
From: CSRA, SC
Great 12AWG will be plenty. If you have a multimeter you can measure the armature resistance of your pump motors and divide 14.5V by your measurement, that will give you an idea of the locked rotor amps. You'll want the fuse to trip in case of a locked rotor, however unlikely that may be.
