I've had the thermostat replaced , radiator flushed and engine flushed out yet the car still overheats. I can let the car sit and idle for an extended time and it doesn't overheat. I can drive the car and keep under 45 mph and it doesn't overheat but if I drive it over 45mph the car temp creeps up until it overheats.
CHECK SOME BASIC PARTS, THE THERMOSTAT AND YOUR WATER PUMP, THE THERMOSTAT MAY BE THE WRONG DEGREES OR THE WATER PUMP IS GETTING A TIRED YOU JUST HAVE TO FIGUERE OUT WHICH ONE. IS THE PROBLEM... CHEERS..
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
There is a drain in the side of the block normall near the back on the side. Sometime it is a tap that you screw in not out to open it. It is possible to flush without removing the plug but if you want a good job take the time to remove the thermostat and flush using the bottom radiator hose and not through the radiator as you won't want any muck blocking up the cores in the radiator. Then flush the radiator from bottom to top.
Have you checked the engine temperature when the gauge shows fully high if it is true message and not lying and the problem is the temperature gauge? Since this happened stop the car open the bonnet touch the radiator hoses and even with off running engine touch the vents of the radiator to all surface and see it the temperature is everywhere the same.
Try with the small stuff first. Replace the thermostat. Before you do that, you should flush and refill your system with just water after the flush process. The bottle of solution that you put into your radiator to flush it and clean it has instructions, follow those. Then let the car cool down and drain the system and refill it with fresh water only. Run this water for a bit and then do it once more. Once cooled back down , replace thermostat and replace the 50/50 mix of antifreeze and water.
Check engine oil level as well, low oil will overheat engines quickly.
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !!
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !!!
IF YOU SEE WATER PUMP WEEP HOLE LEAKING COOLANT.RADIATOR AND ENGINE BLOCK NEEDS FLUSHING.A FAULTY EGR VALVE WILL MAKE CAR OVERHEAT.HAVE VECHICLE SCANNED FOR EGR VALVE FAULT CODE MAKE SURE EGR VALVE PIPE NOT STOPPED UP WITH CARBON AND EGR VALVE STILL CONNECTED.