colling fan surges 92 camry

[bates123]

what would cause the cooling fan surge when in drive and ac is on. does not do it when ac is off or in park or neutral. fan is hydraulic.

[somick]

From what I know on most cars auxiliary fan automatically comes on when AC is on.
I think this is normsal.

Sam

[davemac2]

The fan will go to high speed when necessary with the A/C on. I think these one have two speeds. Is it just something you are now noticing for some reason, or is it an increase in fan noise? Maybe one of the fan blades is broken causing extra noise now or you have a blockage on the condenser or rad? How is the engine temp gauge? Is it still staying in the middle?

dave mc