Why Doesn't This Work??
 

With the truck off, i unplugged the plug on my inner cooler pump behind the lower bumper cover. I then ran a wire from the pos. terminal on the battery to the pos. post on the pump, and then ran a wire from ground to ground on pump. I did this as a test. The pump did not come on or run. Why not. I only left wires plugged on for a second, as i didn't want to burn anything up incase this was wrong.

Why didn't it work?

Brandon

Should have.

Check for a blown fuse?

Dan

If you ran wires direct to the battery and the pump, the only way it shouldn't work is if you didn't have a good connection at the battery or the pump terminals. I would guess that you didn't get a good ground. To check to see if you are getting power through the wires you can stick the wires on your tongue just like you would test a 9v battery...:D WARNING: I'M NOT RESPONSIBLE IF YOU WET YOUR PANTS...:D

Later,
Roger

where is the fuse located for the pump?

test
 

foger lets see you do the test sunday.

What fuse? The connection was direct from bat to pump, no fuse. I can't imagine why it wouldn't work either. OH wait, could be there's a fuse in the pump? Maybe the pump gets a second signal from some type of thermostat to kick on?

Supplied power to the pump by finding a source that was hot all the time (with key off). I used the positive terminal on the starter solenoid. Just disconnected the battery and removed the nut and connected the wire to that terminal. Then a hole was made in the cover that covers the starter solenoid, installed the switch. Connected the wire that I installed to the starter solenoid to one side of the switch and ran a wire to the pump. I connected it close to the pump on the colored wire (don't remember what color and can't check because truck is in shop getting a new motor.) It looks to me that they have some type of heat device (a ceramic piece connected to the pump) I connected the power in front of that so that if this was the case it would be bypased. I know my instructions are very cryptic so if you have any questions let me know.

Hey Tommylightning,

Shoot me an E-mail, I need to ask you something off line..

Thanks,
DL

It had to work. The only possibility was a bad connection or you just didn't hear it running. Try putting alligator clips on your jumper wires so they grip the connections better.