Power Steering fan
 

This car is driving me crazy, Now the power steering fan does not work, I pulled it off and shot 12v to it and it works fine, checked all the fuses,switched some relays around in both fuse boxes ,but still no fan, Can anyone shed some light on this for me? What am I missing here?
Thanks
Randy

RE: Power Steering fan
 

You'll need to get the service manual and backtrack the wiring , might be a broken wire,connector or a component failure

RE: Power Steering fan
 

The fan on the power steering pump will run when the engine coolant temperature (ECT)reaches 233.6F.

At this temperature the engine radiator fan runs at high speed. It may be necessary to block the radiator with a piece of cardboard to get the temp to go that high, due to the engine radiator fan will turn on in low speed at a coolant temp of 221f.....when this happens the temp starts to go down and will not reach 233.6F which is required to engage the fan on the PS pump.

In the old days, one could place a jumper across the ECT sensor thereby simulating a high temp condition....with the current On-Boaard-Diagnostic (OBD) strategy...the Engine Control Module(ECM) would set a code if a jumper was used since this would make the temp read outside of the plausibility range....it may also make the fan run on high, since the ECM can no longer trust the information from the ECT sensor.....

If you are not familiar with electronics or troubleshooting cars I do not recommend placing a jumper across any sensor....just food for thought.
Hope this helps.