2002 Toyota Sequoia Overheating only when A/C on

toyota
sequoia

#1

I have a 2002 Toyota Sequoia, V8 4.7L that overheats only when the A/C is turned on. Without A/C on, it runs perfectly normal. I have replaced the thermostat twice, replaced the radiator, replaced the electric A/C cooling fan, replaced the fan clutch, and just recently replaced the water pump (wow, what a job that was!). Even with all these repairs, the engine still overheats only with the A/C on. Any suggestions on what to do next?!


#2

Your AC fan should come one when you turn on your air conditioner. It’s a simple check that you can do yourself. If the fans for the AC and radiator are not operating when you turn on the AC then you need to take the vehicle to a good automotive AC shop.


#3

Both fans appear to be working fine. The A/C condensor fan kicks on when the A/C is turned on. I originally took it to the shop and they said the condensor fan was weak so I replaced it. The radiator fan clutch was replaced as well. Very frustrating.


#4

Clean the bugs out of the condenser and straighten the fins.