Odd Heater Problem

[Prest989]

This is very annoying with the twenty degree mornings! My heater blows cold air until the car starts moving, once the car gets up to speed, it will warm up like normal. Once I hit a red light or stop sign, it starts blowing cold air again... I'm stuck and cold, any ideas?

 

[NomadKJ]

http://www.jeepkj.com/forum/showthread.php?t=34207

 

[valvestem]

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Maybe this will help.

 

[hyde]

Check coolant level, most importantly check radiator for leaks, which is the case, probably.. just like many other jeepers faced, pinhole crack on rad.

 

[Marty]

Yup sounds like leak in your rad. Check the coolant level. Doesn't take much of a hole and no heat is produced at idle, you may get a bit while at speed. Happened to me and some others in here.

 

[tan's2002kjlimited]

Can't find any leaks, but had to put about a quart of coolant in this morning. She ran warm while driving, but went cold sitting at stoplights. "Bitch!" (She can't hear me up here)