Driving home from work my car stuttered and my check engine light came on and temp shot up to high. I immediately pulled over and popped the hood and the overflow was full and boiling. No smoke , no leaking I let the car cool down and drove off. Next day replaced the thermostat and coolant temp sensor. Check engine light is gone but car still overheating. Someone please help !!

 

Oh and the fan is working normal ! Comes on about halfway as usual.

 

Hey there,

Check for air in the system?

 

Thankyou ! I tried running with the radiator cap off . Do you have another way ?

 

This is from another post as I am unable to write it out from Mobile.

Unscrew the air bleed screw to the right of the battery. (Large phillips) its plastic
Remove the radiatior cap and fill.
Fill the reservoir in between Low and Full.
Leave rad. cap and bleed screw off and start car, turn heat on full blast.
Let car warm up, put towels under rad. cap and bleed area to catch overflow.
When coolant is visible at bleed screw, put the screw back on tight.
When thermostat opens up coolant/bubbles will rise out of rad. cap. Cap it off now.
Check the level in your reservoir, make sure its in between Full and Low.
Let it idle for a minute or two then turn off heater. Let it idle for another minute and shut off car. Let car cool then check coolant level at radiator and reservoir. Fill to previous mentioned levels.
Should be good to go. Repeat steps if any air is suspect in system.

Hope this helps!

 

Thank you so much ! I tried and still overheating. Should i try it again. Everything is working and i don't understand. I'm stumped !

 

do you have heat from the vents?

 

After i bled my system yesterday i just got heat out the vents. But I hadn't had heat for a couple of weeks. Heater core ?

 

If you just started getting heat from your vents after not having it for weeks, I'd say you had a lot of air in your system.