Guys thanks for your help 2004 Kia heat core must have been air lock. Car has no bleed screw for coolant system. Ran car heat on. cap off jack car up ran car cap on an off. still low heat at idle Pull return heat hose a little air came out reinstalled top coolant ran high idle installed cap car is good now drive it two hours road test cks out ok. Thanks for all your help just be careful coolant warm at heater hose
SOURCE: 2004 Kia some times low heat at idle
air in the system need to bleed it,do you know how to do this.
Testimonial: "I will try to bleed it hard to remove heater hose at fire wall do you think hose at top of thermostat remove I can bleed it there? Thanks"
SOURCE: 2004 Kia low heat at idle hiway speeds ok
dear,
your cooling system needs flashing,
1- drain the old water from cooling system, valve is on the radiator.
2- change your thermostat.
3- fill the cooling system with water.
4- add 1 litter of concentrated anti-freeze to it.
5- warm up the car till the fan start and try.
note that: the 2 hoses connected to the warmer core should be dismonted and cleaned.
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