Joshgo ... 1/26/2013
2005 Kia Spectra5 Base 4 Cyl 2.0L
heater only works when driving
I have already replaced the thermostat and there is no coolant leaking. I am at a loss Please help! :)
Cloged heater core, flush the coolent system and replace with 50/50 (half antifreeze and water). This should fix you right up.