Heater only gives hot air when Im driving, why is that?

Dj S. · **Posted:** Mon Nov 23, 2009 9:09 am

This morning on my way to work I turned my heat on, and started to go, but every time I came to a stop it started to blow out cold air! Just wanted to know why that is and does anybody know how to fix that?

Thanks guys.

tjkj2002 · **Posted:** Mon Nov 23, 2009 9:27 am

You have a coolant leak,check your radiator for hairline cracks.

Dj S. · **Posted:** Mon Nov 23, 2009 10:00 am

Could it only be coming from the radiator or could it be anywhere else? If there is a crack would it be best just to get a new one or just tape it up ( Im kidding by the way)? Is there a type of sealant or something that could fix it up? And what type of coolant would you or whoever recommend?

bighause · **Posted:** Mon Nov 23, 2009 11:15 am

TJKJ2002 is exactly right, I had the exact same issue about a month ago and ordered a new radiator from here http://www.radiatorbarn.com/search.php?product=radiator and got it in just a few days. It fits perfect and wasn't too hard to install.

I ended up filling the cooling system with straight water and going to the Valvoline shop about 2 miles away and having them flush the cooling system and add the recommended Zerex G-05 for $65.

nightdrv · **Posted:** Tue Dec 01, 2009 12:33 am

yellocoyote wrote:

I know someone who had the same issue when the water pump was failing. Just something else to consider.

I had that exact same diagnosis of my 97 VW Golf. The impeller blades were gone. New water pump ='d warmth.

Libertad · **Posted:** Tue Dec 01, 2009 1:16 pm

I had the same problem. It ended up being the water pump leaking. Replaced it and I'm good to go now.

Dj S. · **Posted:** Tue Dec 01, 2009 8:48 pm

Naw, it was the radiator. It had a big crack in the top of it, so now its fixed, but now I have a new issue. Just one think after another, and Im starting to get the feeling the Liberty isnt for me.
:cry:

Jeepjeepster · **Posted:** Tue Dec 01, 2009 8:52 pm

Whats the new issue?

Dj S. · **Posted:** Wed Dec 02, 2009 7:45 am

Well when Im driving I can hear this sound that sounds like skinny metal rods rolling around, If you can imagin what that sounds like. Someone told me it might be wheel bearings, and to jack up the Libby and kinda tug on the wheel to see if it move back and fourth. I only hear it while my wheels are moving so it has to do with that somehow. Any suggestions?

Jeepjeepster · **Posted:** Wed Dec 02, 2009 9:35 pm

Usually with a bad wheel bearing the noise will change tone when you turn. If its just a constant noise once the Jeep is moving it may be something else.

Check the cv joints on the front drive shaft. If either of the boots are bad on the drive shaft then its likely bad. Also check the cv joints coming out of the diff on each side. A sure fire way to know if its the cv's on the drive shaft or cv joint coming out of the diff is to put it into 4wd.

Never use part time 4wd on hard surfaces such as concrete or asphalt.

Heater only gives hot air when Im driving, why is that?

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