E fan question

[geo3xk]

I have recently received a whole setup for electric fans and it includes everything from the core support to the overflow jugs and everything in between. Looks exactly like this one http://www.tahoeyukonforum.com/forum/showthread.php?p=331982 . My question is is there a way to hook this up on an obs? I have all the chassis wiring including the main and acc fuse boxes. It was free so I couldn't pass it up.

 

[SwirvinChevy]

If you cant get it to work I'll take it off your hands for price, but I'm confident someone here will be able to help you out.

 

[geo3xk]

If you cant get it to work I'll take it off your hands for price, but I'm confident someone here will be able to help you out.

If I can't your the first one on the list.:thumbup:

 

[badadatude]

I think you would have to just redo the wiring set up to make it work for an obs. Check out this link for a schematic.
http://www.tahoeyukonforum.com/forum/showthread.php?t=30475

 

[geo3xk]

I think you would have to just redo the wiring set up to make it work for an obs. Check out this link for a schematic.
http://www.tahoeyukonforum.com/forum/showthread.php?t=30475

The only difference is my fans only have two wires not 3

 

[retorq]

What year OBS?? That wiring diagram that was linked appears to have 2 wire fans as well. They are most likely 1 speed fans, which are alot easier to wire up. Do you know what they came out of??

 

[geo3xk]

What year OBS?? That wiring diagram that was linked appears to have 2 wire fans as well. They are most likely 1 speed fans, which are alot easier to wire up. Do you know what they came out of??

Yeah I saw the two wire install shortly after I posted that, my bad. My buddy that gave it to me just said a newer Yukon im assuming 06 +. Its the same exact setup as the link in my first post. It was at the shop he worked at because it was hit in the nose so they replaced everything from the core support up. The only thing with damage that I see is the core support itself. I even have a good ac condenser. And mines a 99 yukon

 

[geo3xk]

Ok guys I have 99% of my install done now im in need of a switched power source under the hood. Any ideas? I already checked the fuse box and all but one are hot all the time. I might have to go Into the interior which I was trying to avoid.

 

[retorq]

I ran mine thru a hole in the firewall by the fuse box and tapped into a fused keyed source at the interior fuse box.

 

[SunlitComet]

There is the Engine fuses under hood that are switched and tapable

 

[geo3xk]

The only one that switches off with the ignition is the 10a ign-e would that be safe to use to switch on a relay?

 

[SunlitComet]

More then enough.

 

[badadatude]

Thats where I tapped mine into. Works without any problems.

 

[geo3xk]

What would be a good temp to kick the fans on be? I have an adjustable relay hooked up that gets its temps from just beside the inlet on the radiator. Right now it comes on with the radiator at 165deg . The only issue is it comes on and runs for 45 - 60 seconds them shuts off and another minute and a half later it kicks back on. Kinda annoying. I think if I set it higher it would run longer and come on less.

 

[gpracer1]

What would be a good temp to kick the fans on be? I have an adjustable relay hooked up that gets its temps from just beside the inlet on the radiator. Right now it comes on with the radiator at 165deg . The only issue is it comes on and runs for 45 - 60 seconds them shuts off and another minute and a half later it kicks back on. Kinda annoying. I think if I set it higher it would run longer and come on less.

You want the temp probe to be on the drivers side (top) to monitor the coolant coming out if the block.
If you put it on the passenger side, as soon as the fan comes on it will cool the coolant and you will just be measuring that.

 

[geo3xk]

You want the temp probe to be on the drivers side (top) to monitor the coolant coming out if the block.
If you put it on the passenger side, as soon as the fan comes on it will cool the coolant and you will just be measuring that.

The probe is in the correct place im just curious what temp to have the fans kick on.

 

[YenkoZL1]

I would kick them on just after or just on the temp setting of the thermostat. I have a 195 degree thermostat in my tahoe and my fans kick on a 199 degrees and then the temp drops to 195 and stays there all day.

You can turn them on whenever you want @ whatever temp. Once the system pressurizes & warms up the fans wont let the temps rise abov e the thermostate setting and the Thermostat wont let temps drop below what its set for(195,205,210 etc).

 

[retorq]

The sensor in the Jegs kit I got turns the fan on 5 degrees over the thermostat setting and turns it off 10 below:

185° On/170° Off for 180° thermostat
200° On/185° Off for 195° thermostat