Chuckanut
NAXJA Forum User
- Location
- Moses Lake WA
Hi there, I have an 89 XJ. Recently it hasn't been blowing hot air. I flushed the heater core, had good flow, reservoir is full, Is there a way I can check the heater valve?
Alright. Now I'm reading up on bypassing that valve. From the sounds of it, I still get the heat I need in the mornings, and I can put the temp switch to cool and the air will blow cooler? What's the purpose of this valve?
Oh awesome! My AC doesn't work anyway. But I ended up cleaning out the valve tapped it on the ground and I heard the valve on. Now it works. If this becomes an issue again I'll eliminate it. Thanks everyone
Eliminate it and plug the vacuum line. The heat in the cabin is controlled by blend air doors anyway. It's intended purpose was to stop coolant flow through the heater core with AC on. Not needed at all.
Mostly true... However, if you eliminate the valve you WILL notice a little extra heat in the cabin due to the extra flow through the heater core when not using the heater. This can add to already uncomfortable inside temps without A/C on a hot day.
Sorry to disagree with you, but I've done this to all three of my Jeeps and I live in Arizona.
That ONLY happens if your blend air door isn't adjusted properly and that's a 3 minute fix.