Hi everyone, new to the forum.
My car keeps overheating, I have put in new radiator, thermostat, water pump, all done about two months ago. I have flushed the system and put new fluid and new radiator cap in yesterday and overheated again today. The car seems to be fine for 10 miles of city driving, but then it starts to get hot and then my resivoir cap blows off and coolant blows out. The car heater blows hot air for about a minute then gets cold or cooler, then turn it off and wait a couple of minutes and turn it back on and then blows hot air for a min and so on. Not sure if car is loosing anti freeze when driving but none on ground when parked. Can't check if full when done driving because it always over heats. All my hoses do get hot or have been when I checked. not sure what else it could be, I also didn't notice and fluid on my floor board just in case the heater core had a leak. Thanks for your help.

 

Sounds like you got a blown head gasket.

 

You might have air in the coolant system. Or you could have used an incorrect antifreeze blend. Is there any type of milky substance floating in the radiator (after cooling obviously)? I wouldn't drive it anymore until this situation is fixed unless you want to ruin the entire engine block. Have these symptoms just recently started to happen? Does the radiator fan kick on?

 

Thanks guys,

I just decided to bring it into the shop, just becoming a headache. I have no milky substance in anti freeze and i had bleed all the air out.

Thanks again