engine overheating? smoke from manifold area

[lil_wilde]

Recently the temperature guage has been saying that my engine is overheating when Ive only driven a few blocks. Then the guage will drop to normal (about halfway). Its kind of erratic. I just replaced the radiator so it shouldn't be a broken radiator. I also noticed that there is smoke coming from the area of the manifold when the engine is running. I also go through engine oil really quickly. Could these things be related? Any ideas what the problem might be? Thanks! I have another post regarding the car not accelerating. Perhaps this problem is related to my other problems.

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[tbohar]

When you changed your rad did you properly bleed the air out of the system?

[lil_wilde]

Yah, I think there must have been air in the radiator. No, I didn't bleed the air out and this morning I managed to pour about a 1/4 of a jug of coolant into it even though I "filled" it up when I put in the new one.
After adding the coolant it isn't overheating.

Thanks for your help.

[tbohar]

There is a procedure on this website for how to properly bleed the air out of your cooling system. It involves the heat being on full blast and such. I highly suggest you follow it, so you don't have any more problems. It's easy to find if you search for it, and its a bit more involved, most people don't do it right until they read up on it.

[lil_wilde]

Greta, thanks!