Just curious. I inherited a 94 Camry LE with a 1MZFE V6 engine. I was looking at the cooling fan and there are 2 hydraulic lines one in and one out. Are these coolant lines that is driving the fan? I see that one line routes to the front right of the radiator and the other goes behind and under the intake.

Also I do not see a condenser fan but the ac is ice cold. Is that one big radiator fan supposed to also reolace the condenser fan?

 

The fan is hydraulic powered via the power steering pump.

The pipes/hoses run from a separate section of the PS pump to the fan motor, then through a filter, oil cooler and back to the reservoir tank at the pump.

There is an electrically controlled hydraulic valve after the pump to control fluid flow and thus the RPM of the fan based on engine RPM, coolant temp and AC operation.

 

Thanks for clearing this up. So it is driven by the power steering pump?
Is there any advantage to doing it this way?

 

The fan hydraulic pump is integrated with the PS pump housing, both are driven by the same shaft/pulley/belt.

Don't know why Toyota used this system. It might have been able to adjust to engine coolant temperatures better then electric fans but is also more complicated. On later year it was replaced by the typical dual electric fan system.

Parts for the hydraulic system may be hard to find, some owners have replaced it with the electric fan setup.

Since your on the subject might check the condition of the fluid in the reservoir, changing it may aid in the system lasting longer.

The easiest method is to suck out the fluid in the reservoir and replace with fresh fluid (the type should be printed on the cap). Repeat this process between drives until the fluid becomes clean.

 

OK Thanks Toyomoho! I will replace the fluid tomorrow.

 

I replaced the fluid in the resovoir but I would also like to replace the in line filter. Any after market filter out there?

 

Might look for an inline power steering fluid filter that out fit.