2001 Hyundai Elantra Radiator Troubles

Tiny
LUCKYME0428
  • MEMBER
  • 2001 HYUNDAI ELANTRA
Engine Cooling problem
2001 Hyundai Elantra Automatic

My radiator blew out and I decided to change it myself with the help of my brother. We chaged it and thought everything was fine but then the car started overheating very quickly, blowing cold air out of the heater settings, and revving up the engine in two seconds cycles (that is it revs it up it comes down it revs it up down up down u get the picture). I came back to your site did some research and thought that maybe there was air in the line, we followed your instructions to get the air out but the car is still doing the same things. Please Help.
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Sunday, February 8th, 2009 AT 11:43 PM

5 Replies

Tiny
KHLOW2008
  • EXPERT
Hi luckyme0428,

Thank you for the donation.

When engine is cold, did you check the radiator coolant level at the cap?

If level is full and overheating occurs, did the fans start working?

Did you test if the radiator fans are working?

When the radiator blew up, the engine could have overheated and damagd the thermostat.

Do initial check first before going to thermostat test which would require removal of it.

Let me know what you find out.
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Monday, February 9th, 2009 AT 7:37 AM
Tiny
LUCKYME0428
  • MEMBER
I did check the radiator coolant levels at the cap.
The fans did start working.
And since my first post I changed the thermostat.
But the car is still overheating.
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Tuesday, February 10th, 2009 AT 1:41 PM
Tiny
KHLOW2008
  • EXPERT
When fans are workings, do they stop intermittently when temp gauge shows high?
Is air blown through the radiator very hot?
Do you need to top up coolant after running engine?
Is coolant being forced out to the reserve tank?
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Tuesday, February 10th, 2009 AT 6:00 PM
Tiny
LUCKYME0428
  • MEMBER
No the fans do not stop intermittently.
I dont know about the air being blown hot. (I'm afraid to let the car get hot again).
I do need to top off the coolant after runing the engine.
Coolant is being forced out the overflow tank.
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Thursday, February 12th, 2009 AT 9:39 AM
Tiny
KHLOW2008
  • EXPERT
Situation don't seem optimistic.

Engine is overheating and pressure buildup in cooling system.
If the radiator cap had not been replaced, then it could be bad. Check the seals for wear or tears.

If the radiator cap is not the problem, you have blown the head gasket caused when the radiator blew.

Check for water contamination in the engine oil and get a test done for hydrocarbon leakage into cooling system. Ther should be a kit available at your local parts store.
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Thursday, February 12th, 2009 AT 6:11 PM

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