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 Post subject: 5.9 magnum electric fan
PostPosted: Fri Aug 11, 2017 9:24 pm 
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Nut Knots

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Have been running an electric fan controlled from a probe style cheap fan controller. I've had a couple fail over time and am done with it. I picked up a weather tight relay and thread in style thermostat switch. I've looked over most of the engine and can't find any obvious spot to install the switch. Any recommendations or Spots that I am overlooking? Any other ways of controlling the relay? For info, 95 yj, 98 zj 5.9, 96 ram ecu.

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PostPosted: Fri Aug 11, 2017 9:32 pm 
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Location: Beaverton, Oregon
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Could use the port for the old style gauge sender. Or tap the manifold by the tstat.

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PostPosted: Sat Aug 12, 2017 6:58 am 
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I will get a pic of where Paul put one in the engine I have now.

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PostPosted: Sat Aug 12, 2017 7:05 am 
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You could also get a radiator hose male to male adapter with a port built into it.

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PostPosted: Sat Aug 12, 2017 8:37 am 
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The in-hose option is the easiest, you can find these on amazon for around $15. Or you could make one. Are you going to run both a high and low speed on the 5.9 fan?

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PostPosted: Tue Aug 22, 2017 3:06 pm 
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Nut Knots

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Running single speed fan. I'm going to weld a bung into the thermostat housing cover. Should have last part needed tomorrow.

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Galford wrote:
But after seeing the results, I would cut any Dogs leg off and not think twice.

:thumbsup:


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'95 Jeep wrangler


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PostPosted: Wed Aug 23, 2017 4:57 am 
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The 5.9 T-Stat housing is a bitch to get at, so I made an in-line adapter with a built in port. The painless 30 amp fan controller and the thermostat switch completes the circuit to ground so It required a stud and wire to ground the in-line adapter, which looked a little hokey but worked well. Ultimately I ended up pulling the electric fans off and going back to a factory fan clutch and shroud, it cooled better anyways and wasn't worth the MPG increase.

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PostPosted: Wed Aug 23, 2017 3:58 pm 
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Nut Knots

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sideshow wrote:
The 5.9 T-Stat housing is a bitch to get at, so I made an in-line adapter with a built in port. The painless 30 amp fan controller and the thermostat switch completes the circuit to ground so It required a stud and wire to ground the in-line adapter, which looked a little hokey but worked well. Ultimately I ended up pulling the electric fans off and going back to a factory fan clutch and shroud, it cooled better anyways and wasn't worth the MPG increase.



Housing is already out and I had already pulled the alt and ac pump in the process of finding a vacant port. I've got a quality weatherproof relay and control switch now, should be good to go as soon as I get the bung.

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Galford wrote:
But after seeing the results, I would cut any Dogs leg off and not think twice.

:thumbsup:


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'95 Jeep wrangler


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