Hey guys

Trying to get my tranny cooler installed this weekend.

On my auxilliary cooler - it has 2 wires , about 9 inches each - 1 black and one blue. It just says to connect this to a switched 12V power supply.

How do I do this ?? Never have before.

I assume I could run 1 wire (blue) +ve terminal and 1 (black) to negative terminal - and it would get power every time the engine started - but I would prefer to activate via switch - ideally something like the existing A/C switch.

Is it easy to hook up to the A/C switch somehow so when I turn the A/C or FAN on - it engages the fan on the auxilliary cooler ??

OR seperate switch from o'reilly's/electronics store ??

Need full details - and quite basic details - not overly good at reading wiring diagrams etc

thanks guys

--- Update to the previous post...

Kinda thinking I need to not install the thermostat - as it kicks in at 180 and I might want to start cooling a little lower than that. (As if I am 180 on COLD line where thermostat is - then I am 220+ on HOT line out).

So then I am thinking I could use some sort of 12v toggle switch with inline fuse in the cab ?

So - can I tap into an existing 12 V wire and then just run the black wire to a ground - or do I need to run the black wire all the way back to the negative terminal ?

If I can tap an existing wire - any ideas of best one ? Easiest to locate and splice ? Or should I run it from the bagttery direct ?

Well here is something to share!someone can put it in the download I am not allowed.

ohms law.zip

Well here is something to share! someone can put it in the download I am not allowed.

You got it up there... twice ;)

Sorry I didn't see it.

Man - cool stuff I only 'just' followed it ... and not the detail - the concept "we add a SPDT relay (a SPST will work, as well, depending on the load rating.) Now, you see the switch is only triggering the coil with voltage, as the other side of the coil is grounded, allowing the relay to carry the load of the circuit, rather than the switch. So, as you can see, building a circuit properly takes a little more time, and components, but will work better, last longer, and most importantly, BE SAFER."

ok ...... so by using a relay do you mean a relay like what we have for some of our existing circuitry - like our horn, lights whatever ? eg buy a xAmp relay and use that in spare slot ? Or do you build the relay from ground up ? Might need isx to show me this one when I see him next

ok ...... so by using a relay do you mean a relay like what we have for some of our existing circuitry - like our horn, lights whatever ? eg buy a xAmp relay and use that in spare slot ? Or do you build the relay from ground up ? Might need isx to show me this one when I see him next

You can get the relay with harness for < $10, making the job a little easier. It'll look something liek this: http://cgi.ebay.com/ebaymotors/12V-12-VOLT-30-40A-SPDT-RELAY-w-SOCKET-WIRE-HARNESS-_W0QQcmdZViewItemQQhashZitem4a9657e5d9QQitemZ320349922777QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories You'll need to hard-wire the pigtail. You could use an empty slot in the power distribution block, or whatever, but that may be a little above your experience level, just yet. I'm not trying to be condescending by any means, but that type of 'mod' can get a little tricky. But to answer your initial question, you can use the OE-style relays, too, as long as you understand what pin does what. Bottom line, it still functions along the same principle, just may have a different physical interface (pinout) appearance.

I'll show you how it's done John

yeah thx guys - great info - but starting to sink Sure - I'll drink a beer and watch/listen ISX THAT I CAN DO !!! lmao

yeah thx guys - great info - but starting to sink

Sure - I'll drink a beer and watch/listen ISX THAT I CAN DO !!!

lmao

Ummmm... It should be...

Sure - I'll watch/listen ISX and then drink a beer THAT I CAN DO !!!