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Old 08-19-2020, 12:39 PM   #1
1998 Boxster Silver/Red
 
Join Date: Sep 2017
Location: 92262
Posts: 3,087
Quote:
Originally Posted by piper6909 View Post
Are you sure the fans run at low speed with the AC on? IDK for sure, but I expected them to run at high speed. Someone please chime in here to confirm.

Also, I've always had better luck with used, low-mileage OE parts than new aftermarket. If I found a low-mile OE fan for $60, I'd definitely go with it over aftermarket.

Everything I've read suggests that the fans run low when the AC is turned on. With the AC off the lows pop on at around 210... the highs kick on a little higher than that.

With my AC on... the left side is running low... and the passenger side is running high.

The other odd part is when I ran a jumper from the top vertical slot in relays 20 and 21... each seperately, and plugged the other end into the horizontal on 18 and 19... nothing. It is only when the 18 and 19 relays are plugged in does the fan work. Odd.

That's the puzzling part.

However, I do know I need to get a couple of fans. Arghhhhh.

Thanks, Pal.
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