Well I changed my water pump tonight and took her for a drive, not 3/4 of a mile down the road the temp guage was pinned past the 260 deg mark.
Well obviously it didn't get that hot that fast, so either theres an air bubble in there somewhere or???

So if it is an air bubble how do I get it out?
It did bubble in the overflow tank when I started it so some air did get moved.

On another note I stuck a magnet on the back of the radiator to test what kind it was and it didnt attract so i'm assuming its aluminum, am I correct?

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Flowmaster,Edelbrock open filliment filter with K&N filter in it
160 stat, BF G-Force w-rated tires

 

yes, you have air in the system. find a funnel that you can push into the radiator neck that sticks up about a foot or so higher than the motor. With the engine running, keep filling up this funnel till the thermostat opens a couple times and circulates the coolant. It may boil and overflow once or twice but don't worry, just keep feeding it water till it settles down and you get constant heat through the radiator. Then you're totally full.

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Kyle Osterholt
Okarche, Oklahoma
ASE Master Certified
86 T/A 383 TPI
89 TTA #1002 T-top/Leather
89 TTA #1358 Hardtop/Leather
80 T/A Pace Car
73 Opel GT
73 bronco
2000 Ducati 996 Monoposto

 

Your radiator is more than likely plastic (black) which is good, that means theres a good chance your radiator will go before any other major part will (like crack the block) when it overheats.

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1992 Camaro Z-28 5.7L auto t-tops arctic white

1967 Pontiac Catalina 2 door fastback 400 v-8 auto cameo white dark red interior

 

Plastic? I dont think so, It looks and feels like metal. It is grey colored like aluminum.
I never heard of a plasticradiator, plastic has terrible temp qualities for a radiator

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Flowmaster,Edelbrock open filliment filter with K&N filter in it
160 stat, BF G-Force w-rated tires

 

I wouldn't say plastic, but its like a plastic, I'm not really sure what the material is called. Its purpose is to blow before the engine goes when you overheat. Like my old one did thank god. But if yours is gray (not painted) then it probably is aluminum. Sorry about the confusion.

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1992 Camaro Z-28 5.7L auto t-tops arctic white

1967 Pontiac Catalina 2 door fastback 400 v-8 auto cameo white dark red interior

 

I am prtty sure there is no such thing as a plastic radiator. you must be thinking of the fan shroud being plastic.

now, if you have an electric fan, does it work? if not then that is your problem.

I am also pretty sure that air in our cooling systems is not bad. it will circulate once and then bubble out at the overflow tank. you only have to bleed the system on 4th gens.

you may have a clogged radiator. make sure your radiator is good. also, turn the heat on and make sure you are getting good heat coming out of the vents. a clogged heater core will cause cooling problems, and replacing that is cheap, but it takes hours to do(removing the dash...)

 

oh yes, also check to make sure your thermostat is working(you could always just remove it and see if your car overheats. if it doesn't without the thermostat then there's your problem)

 

If you replaced your water pump, did you get a regular rotation pump? You need a reverse rotation pump w/ serpentine belt.

 

Well its fine now, if it was a bubble it moved to the top of the radiator over night or something. The overflow tank was half full with water and antifreeze I had in it so maybe the cap wasnt totally sealed, whatever it was it is fixed now.

I thank everyone for their help
Now, time to get back to my other projects

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Flowmaster,Edelbrock open filliment filter with K&N filter in it
160 stat, BF G-Force w-rated tires