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View Full Version : 2001 Lexus ES300 overheating



rbatista4
06-04-2012, 11:51 PM
I have an overheating problem only when the A/C is turned on - when the car is operating in normal temperatures and without A/C, temperature gauge is at normal. If the ambient temperature gets into the '90s and the A/C is on, the gauge heads up close to the red. The radiator was recently serviced, I've replaced the thermostat and checked for air in the system. Any ideas??

admin
06-08-2012, 05:04 PM
Hello rbatista4,

When your A/C is on, you should also have an additional cooling fan operating at the same time. After your vehicle has warmed up, turn your A/C on and check for fan operation. Both cooling fans should be on.

rbatista4
06-12-2012, 10:05 PM
Hello rbatista4,

When your A/C is on, you should also have an additional cooling fan operating at the same time. After your vehicle has warmed up, turn your A/C on and check for fan operation. Both cooling fans should be on.


Thanks for the response. It appears a relay is bad, keeping the second fan from turning.