2003 Hyundai Tiburon Overheating and loosing antifreeze

2003 HYUNDAI TIBURON
99,500 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
FASTFINGERS580
  • MEMBER
  • 2 POSTS
I can't find any leaks, added bar's leaks last night to the radiator just in case, hoses appear to be fine. How do I tell if it is my thermostat or waterpump? It runs fine for about 5 miles, then starts to really overheat, and my heat starts to blow cold. I pull over, let it cool, add more antifreeze and am fine for another 5 miles. It is cold here, temps only in the low teens.
Thanks!
Dec 24, 2009 at 9:55 AM
Advertisement
Avatar
IMPALASS
  • CERTIFIED EXPERT
  • 3,112 POSTS
Hello

To better assist you is your model just the Tiburon or the GT and what is the engine size in liter
Dec 24, 2009 at 10:21 AM
Avatar
FASTFINGERS580
  • MEMBER
  • 2 POSTS
It is a GT and it has a 6 cyl 2.7 liter engine.
Dec 24, 2009 at 10:30 AM
Advertisement
Avatar
IMPALASS
  • CERTIFIED EXPERT
  • 3,112 POSTS
Hello –

Thanks for the info………

Do you see any visible leaks at all……..from the water pump.

Do you see any visible leaks around the heads or exhaust.

Do you have white smoke coming from the exhaust pipe.

Pull a couple of plugs and see if you can see coolant

Check your oil level….has it gone up and is milky

I don’t think it is your thermostat as your car runs fine as long as you have coolant.

The same with your heater……it blows cold due to lack of coolant.

You have to be losing coolant somewhere and you may have a blown head gasket. If you are losing that much coolant that quick it is either running out or going out the tail pipe.

Is the passenger floorboard wet?

https://www.2carpros.com/topics/cooling-system/leaks

Please let us know if what the final fix was for your car so we can better assist others. Thanks!

https://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals
Dec 24, 2009 at 11:13 AM