Flash1034

Title says it all. Puts out warm air, not hot air. Could it be the thermostat or a clogged up heater core? Hoping for the thermostat. Im not sure what temp thermostat is in there. If, by chance, it had a 180 degree thermostat in there, would that cause this condition? Any ideas?

Thanks,

Flash

BigBear

Take off the thermostat housing and check it. If it is a 180F tstat let me know.

cruiser54

Do you have a temp gauge in the dash? Should read around 200 -210 if you do. A 180 stat should still give good heat. Perhaps you have no stat at all?

Your heater core could need flushing, too.

Flash1034

My temp gauge reads about 190. Below the half way mark. I'll check but it seems to come up to temp pretty fast so I think there is a thermostat in there.


Flash

djb383

Bet it's weak/poor flow to/thru the heater core. Could also be the heater door under the dash not operating correctly. We run a 180 year round, heater works great even when ambient is in the teens.

Flash1034

Does that mean core replacement or I'd there a way to clean it?

Flash

Flash1034

Is there a way to clean it?

jaredsmith.tx

you can clean em, I meant to at the beggining of winter but never got around to it, and just can't bring myself to go out in over 100 degree heat and try to get my heater get hotter, haha

http://www.jeepforum.com/forum/f11/h...dvice-1095950/

Flash1034

Thanks for the link, Ill give that a try.

Flash

tyhodge07

Sorry for the old topic bump, didn't see a reason in starting a new for the same issue on same year vehicle. But, mine also blows warm, not hot. Flap works good, temp barely raises on the gauge also, any thoughts

playbass

Everything already mentioned in the thread could also work for you [flushing heater core, checking t-stat, etc.]

If you say the temp gauge barely raises, that makes me think the t-stat is stuck open (or not even there...)

cruiser54

You have a wonky thermostat or not one at all. start there.

DieselDaze

yep.. when I bought mine it was summer and I guess somewhere down the line the PO took it out, winter came little to no heat....

pulled housing there was no t-stat... I flushed the core anyway installed t-stat and all was well.....

skife

did you verify the flap isn't physically broken?

tyhodge07

Thanks guys, I was leaning towards as the topic was heading for the op but wanted to confirm it being the same to a likely cause with the gauge barely raising.