I dont know why, I just brough a 94`s 4rnner, but sundenly the cooler dosent work ,only the heater still working. it repaired last year. does it need to refill something in it ?

pls someone answer it.

Air conditioning repairs can be complex. However, there is a quick check you can do.

First, run your airconditioning and go and look at the compressor. It should cycle on and off. If it does not stay on, or cycles rapidly, it is because there is no coolant left.

You will then have to take it in and they will have to do a leak check. 9 times out of 10 (given the age of the vehicle) it is your compressor that has the leak.