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Originally Posted by CJ_Boxster
Thanks Jim, Ill probably first replace the relays,... are those the thin tube looking thing with a wire coming out of it directly below the fans?
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Hi,
No, those are the Ballast Resistors, which come to think of it may actually be the problem. They are PN# 996.616.101.00 - $25 (Sunset). These Ballast Resistors control the Fan Speed by varying the amount of current to the Fans. You can test them by connecting a test lead from an Ohm meter (or Multimeter with Ohm function - always a digital). It doesn't matter which lead goes where. But, you should see some resistance, most likely in the 0.75Ω-1.50Ω Range.
What you do not want to see is an 'Open Value' or Infinity (sometimes the display will show -
∞) If you see this, the Resistor is bad.
You also have 4 relays. 1 for each Fan and Fan Speed. They are located in the Relay Block which lives above and behind the left side Footwell Panel above the Fuse Box. The 4 relays are in the 2nd to bottom row and are the 4 immediately in-line of the right side. Their numbers are (in R-L reverse order):
- #22 - Right Engine Cooling Fan, High Speed
#21 - Left Engine Cooling Fan, High Speed
#20 - Right Engine Cooling Fan, Low Speed
#19 - Left Engine Cooling Fan, Low Speed
These are the same part, so you can interchange them to see if they make a difference between the Fans. The PN# for these Relays is: 141.951.253.B - $10 (Sunset). Hope this helps...
Happy Motoring!... Jim'99
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