Engine temp and heat acting up

What does it mean if my engine temp suddenly goes up from 180-210 and my heat doesn't work?

Please don't say water pump

i just had this happen to me try the tstat bypass hose! the people who i took it to said it was the water pump and i fixed it and it still was acting up. it took the hose blowing for me to find out what it truly was but thats what happen to me

What do I do?

Does this happen when you're sitting still or while you're driving.


Have you had any coolant leaks in the past month or so, if you had a coolant leak, there might still be some air pockets in the coolant system.

The heat cuts off when I stop. While driving the temp keeps jumping from 180ish to 205-210

or you may not have any coolant in the system, which would have me lookin for leaks.

Ok. I waited for it to stop raining and I checked the radiator. When I went to release the pressure (it was still a little warm) I heard a gurgling noise. It was very low on coolant, and almost none in the overflow bottle.

I know I have a leak somewhere now because I filled it 3 days ago. I put more in just now, also.

Quick question: The bleeder screw on top of the t-stat, is it possible to have it too tight or too loose?

I know for sure you can't have it too tight, I had mine too tight while back and broke it and had to take it to the shop to replace, so don't tighten it too hard.

Far as too loose, long as coolant don't come out then its not loose. Just keep tighten it until you fell like youre forcing it then stop, thats what I do.

Ok, I'm gonna check it over tomorrow b4 I go to work. Thx guys! If any other concerns pop up I'll reply.

yea thats what was happening to me! there was no coolant in the overflow and the hose finially blew and coolant was everywhere! but get ur bypass hose checked