hi everybody

i have a problem with my only when i drive above 3 RPM for long time ( average 10 min )

when i drove more then 110 km/hr for long time i notice temrperature needle getting high , so i quickly stop foo engine and open raiadtor cap to take off hot air and i notice also that water resovir full of water above the max .

i have replaced water pump , still problem avilable the no sign of blown headgasket everything of of oil scaler

so what may be the problem????

 

Fan come on? Headgasket or radiator. Maybe even thermostat. The cooling system really isn't all that complicated. What is "of oil scaler"? Please tell me you're not really running water.

 

You haven't ruled out a blown head gasket, though consider simple things first.

Have you bled the cooling system and replaced the thermostat?

Is the lower radiator hot when the engine overheats?

 

Thermostat. Could be a lot of air in the system. If you pulled off the radiator cap and the radiator was as hot as the motor you would have gone to the hospital. That is a very stupid thing to do. It has warnings right on the cap!

 

If you are running hot while driving. Typically could be a bad thermostat, bad radiator or maybe a clog in the system.

I would replace the thermostat first.

Also pressure test the system for leaks.

 

Same problem happened to my friend, it was his thermostat. Change it and bleed the coolant.

 

^ ditto.. check thermostat first..

 

well guys i found that i haven't thermostat ( i went to mechanice fixer )

so i must first install thermostat is that right and i want any one to explain me the role of thermostat

thnx guys

 

Your mechanic sounds sketchy. I'd go to a different place. Did you just buy the car? It came with one from the factory, so unless someone removed it it should still be there...

 

The only thing is this, typically no thermostat will help prevent you from overheating. I assume you bought the car used? many times people will take out the thermostat to hide overheating problems.

I have a feeling you will put in a thermostat and the overheating will continue.

 

i had the same problem on my eg it was the radiator it was cloged

 

My friend's car overheated on the highway, especially going uphill. Took the thermostat out and there was a hairline crack in the middle. New thermostat and it was good to go.

 

as i understood that no thermostat mean more cooler so to my overheating problem , i think the problem belong to the radiator its clogged ( cause there is no thermostat )
i will clean my radiator and put new thermostat and see what happen
yes i bought the car 2 years ago

 

Crack in the thermostat itself? That is interesting, I am wondering if that caused my problem, since my thermostat was original.