Sub (second) fan

[oldpro]

In our 90+ degree weather I've had some cooling issues. Last one got me a new radiator. Yesterday at 96 degrees, still running hot. Had to turn off a/c which was blowing hot air to get engine temp back in OK range. I tried to duplicate the situation at home by blocking airflow through radiator, but couldn't. I never saw the 2nd fan come on. I checked the fuse for it and it was good. At what temp is that 2nd fan supposed to come on? And where is the sensor that controls the 2nd fan?

[oldpro]

Continuing to diagnose the overheat problem. Fan rotates easily; no binding. Fan is plugged in. Fuse good. I'm trying to pull the relay, but I need the secret handshake on getting the relay out of its socket. I can wiggle the little bugger, but it just won't pull out.

[Guacamole]

I can't be much help here, but I did find this:
https://youtu.be/YElByNoAz90

[oldpro]

He certainly did make that look easy, didn't he? Just grabbed and pulled them right out. Must be one of those "Practice makes perfect things."

[oldpro]

He certainly did make that look easy, didn't he? Just grabbed and pulled them right out. Must be one of those "Practice makes perfect things."

[ZUBAJA]

Having replaced DOZENS of these relays, I can tell you that sometimes they simply pop out, and sometimes you will pull the cover off the relay leaving the "guts" behind - then you grab it by the guts and replace it. For best results, when you do get it out, put a little dielectric grease in the slots before plugging it / the new one back in. Dennis

[oldpro]

Finally got the little bugger out. Tried shorting across the terminals, and the sub fan didn't turn on. Tried a new relay. No dice. Looks like it'll have to go to my favorite independent guy for further diagnostics. I wonder why the stealership didn't check for proper fan operation after they replaced the radiator? Looks like they passed up an opportunity to make a couple of bucks....

[tomato_88]

Which fan is not coming on? The driver's side or passenger side?

Scott

[oldpro]

The main fan on the passenger side is working fine. It's the sub fan on the driver's side that's failed. I have an appointment with my favorite subie mechanic Tuesday for an oil change and fan fixing. He will have a replacement fan on hand in the shop that day. If his diagnosing shows it's NOT a bad fan, he will return that one. How's THAT for being prepared?

[oldpro]

A few minutes spent diagnosing verified that the sub fan wasn't working. Slipped in the replacement and all is once again well in Oldpro's Bajaland

[tomato_88]

Glad to hear it was a quick fix.


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