Question about 2001 Volvo V70

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How can I check to see if the fan that is attached to the back of the raidiator works? I try driving our car around and it never seems to turn on and I am worried that the car might overheat

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Ok with the car at idle, turn your a/c on "High" blow....full a/c and watch the fans they should both be spinning, if they weren't running your car would over heat in a heart beat, watch the temp gauge should stay in the middle, these fans are built to cycle on and off driving normal, that is why you probably haven't seen the fans come on, most common problems on the fan circuits is the fan relay, located in a black plastic "fuse" box under hood, should be marked as a diagram on its cover on the inside, to test it find another "exact" match relay and put it in the slot of the fan relays plug see if it works...if yes replace the old relay with the exact relay configuration and numbers..try to get from the dealer.
You would only perform this test if the fan didnt come on and the car was running hot.
If the fan stiull doesn't come on unplug its conector and supply 12 volts to the positve side of the electrical connector, comes on ...fan is good replace the coolant temp switch mounted on the front of the engine near the upper radiator hose and thermostat area(two wire connector plug on its top) also replace the thermostat and gasket as a combo if it hasn't been changed in over 25,000 miles as preventive maintanence program.

Posted on Jun 21, 2010

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