91 LX 5.0 getting hot when a/c is running

[91lx14gt5.0s]

91 LX 5.0 getting hot when a/c is running. Even going down the road, it gets hot. Fan runs and radiator was replaced a couple of years ago. What’s the most common issues I should check first?

 

[fasterthangas]

What temps are you seeing? I assume you have an aftermarket gauge.

 

[91lx14gt5.0s]

What temps are you seeing? I assume you have an aftermarket gauge.

Everything is original. Only has 80k on it. Getting up to 230

 

[gkomo]

I just want to clarify the 'everything is original', but how do you know the temps are getting up to 230degrees? You are using an aftermarket gauge then?

 

[AeroCoupe]

Is the car missing the air dam and or side deflectors?

Mustang Radiator Air Deflector Kit (87-93) E7ZZ-8349

Replace that broken, or missing 1987-1993 Mustang radiator air deflector with this direct replacement from DCR!

lmr.com

https://lmr.com/item/LRS-8310B-K/5-0resto-mustang-frame-rail-air-deflectors-79-93

 

[Mustang5L5]

Is this mostly while at idle? Or while driving or both?