if the anti-freeze concentration is to high will my car over heat?

Question

I have replaced the thermostat and water pump and it still runs hot.

Why would it over-heat?

Answer 1

Other things that can cause a car to overheat:
Timing off
Bad radiator cap
Poor tune up condition
Slipping fan belt
Damaged or removed cooling shroud
Clogged or damaged radiator
Cracked head

Answer 2

If it heats up a lot faster than normal, your engine is putting out too much heat. If it heats up normally, but keeps getting hotter, your radiator is probably half clogged and in need of replacement. If it's the radiator, don't bother trying to unclog it. It would just give out altogether soon. Also, make sure somebody didn't replace the big hose on the bottom of the radiator without putting the spring in that keeps the pump suction from collapsing it.

Answer 3

Yes,,your car will over heat especially during the winter. A high concentrate will cause the freeze point to increase and the antifreeze will turn into a gel and clog the radiator. Drain half and just add water.

Answer 4

While antifreeze prevents water from freezing, it also raises the boiling point of water.
So lets say it is at 70 present antifreeze and only 30 present water it will still raise the boiling point from 212 to say 270. IT could not overheat if you say run the air to long.

If everything is ok and it still overheats then change the thermostate and have the radiator flushed.

Answer 5

Using antifreeze undiluted can cause an engine to over heat because antifreeze is not as good as water at disipating heat. That is why you have to mix it 50/50 with water.

Answer 6

Yes. If you post a why question, I may be inclined to give you a physics/chemistry related explanation of why.