overheating

2003 KIA SEDONA
135,000 MILES • 3.5L • 6 CYL • 2WD • AUTOMATIC
Avatar
JWOODARD
  • MEMBER
  • 4 POSTS
when I run the heater my car runs hot.Radiator has been flushed and refill with coolant,replaced replaced radiator and AC cooling fans ,coolant sensor and just replaced thermostat with a 170 degree F.not losing coolant
Oct 12, 2018 at 2:00 PM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good afternoon.

When you turn off the heater, does the engine cool down?

Usually, it is the other way around.

Roy
Oct 12, 2018 at 2:25 PM
Avatar
JWOODARD
  • MEMBER
  • 4 POSTS
Yes, or turn an AC will help cool down.
Oct 12, 2018 at 2:41 PM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Okay, is the cooling fan working at the radiator when it gets hot?

I am wondering if the cooling fan is cutting off and not pulling cool air through the radiator. The fact that it cools down with the AC on tells me that fan is working and cooling the engine.

Roy
Image (Click to enlarge)
Attached Media
Oct 12, 2018 at 2:48 PM
Avatar
JWOODARD
  • MEMBER
  • 4 POSTS
I was thinking the same, it actually got hot while I was sitting in the drive through. Is the radiator fan supposed to be a two speed motor? The fan is about four months old.

Oct 12, 2018 at 10:05 PM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
No, it is one speed. It is just turned on by the AC system and the cooling system.

Roy
Oct 13, 2018 at 3:46 AM