Fans not working when car at IDLE
11-01-13, 03:42 PM
#1
Driver School Candidate
Thread Starter
Fans not working when car at IDLE
Hello
I have lexus RX350 2010. when i start the engine both fans are not working.
But when i turn the A/C on both fan start working. IS THIS NORMAL ?
Best Regards
I have lexus RX350 2010. when i start the engine both fans are not working.
But when i turn the A/C on both fan start working. IS THIS NORMAL ?
Best Regards
11-01-13, 06:30 PM
#3
Lexus Champion
Yes, it is absolutely normal. Fans provide additional cooling for the radiator when it is needed. When you turn on AC, they start up automatically to provide air flow to the AC condenser that sits inline with the radiator. All modern cars do just that.
11-02-13, 03:51 AM
#4
Driver School Candidate
Thread Starter
I think at least 1 fan must be working to cool the engine !. when ignition is ON and the engine is working. there no fan is working. but when i turn the AC ON both fan start working. i think atleast 1 fan work to cool the engine.
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Okoro (08-24-22)
11-03-13, 03:14 PM
#6
Instructor
It is absolutely normal to have no fans working with ac off until the engine reaches a certain temp, then at least one of the fans will kick in. If your temp gauge is past the mid point, and no fan kicks in, then you may have a problem.
11-03-13, 09:57 PM
#7
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This is normal, the fan does not come on until a pre determined temperature of the coolant is reached, at which time the computer module starts the fan or fans, unless the a/c is turn on which starts the fans immediately.
The fans on my Z06 doesn't start until the coolant reaches 230 degrees! or immediately if the a/c is turned on.
The fans on my Z06 doesn't start until the coolant reaches 230 degrees! or immediately if the a/c is turned on.
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