Question about 2000 Lexus Gs 300

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My 2000 GS 300 has a clicking noise when the air conditioner or heater is running. It sounds like a fan clicking and it does not do it all the time. A mechanic friend said (without looking at the car) that I probably need to drain the antifreeze and then refill. What do you think?

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Had a similiar problem with my vehicle and it turned out to be a letter had fallen out the back of the glove compartment into the blower fan housing under the dash. Lower the compartment door and try to reach in the housing to remove. If not accesible remove blower fan housing ( not hard ) and remove object. Good Luck!

Posted on Nov 14, 2009

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My thoughts are that you have a leaf or two that have gotten into the fan motor box between the plastic and the actual squill cage fan,annoying but can take a fair amount of work to fix.Try running the fan on high then off several times to dislodge or chew up the debris,if that does'nt work you need to remove the blower motor and remove the debris by hand.The noise your friend is discribing is more like a rush of water noise or a gurgleing noise due to low fluid.

Posted on Nov 14, 2009

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Coolant will not make a clicking noise. Intermittant clicking that changes frequency with fan speed is usually a fan motor, common symptom

Posted on Nov 14, 2009

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