AC cold then hot, don’t forget to watch your engine temp, may not be an AC issue (2 Viewers)

[drewp04]

If you’re AC is cycling from cold to hot, make sure to monitor your engine temp as this will happen automatically if your engine temp runs hot to bring the engine temp down. You would think there would be a warning when this happens but the only indication I received was the needle rising, followed by the AC blowing hot.

Just trying to help somebody else if they have the same issue so they don’t misdiagnose this is an AC issue versus low coolant like I did for the last two weeks

 

[04UZJ100]

Why do you have low coolant? Valley plate leak? Water pump leak? How many miles?

 

[drewp04]

Why do you have low coolant? Valley plate leak? Water pump leak? How many miles?

It was the valley plate leaking, it was barely seeping out, but I decided to get it fixed at the dealer…$1350. I have 146,000, the service rep knew exactly what it was when I described where coolant was leaking from.