over heating

[Abnorml]

I got the water pump in my hearse replace the week before last. I was heading to a cruise in that was about an hour away, driving on the interstate and the water light came on. I pulled over as quick as I could. After She cooled down and I opened the radiator cap, I checked the fluid and I couldn't see it. I had checked it before I left so I know it was full. I put over two gallons of water and still could see anything. Got to a gas station and filled up the radiator with water and turned around and headed home with no problem. The next morning I went and checked and the radiator and the water level was just below the top. I didn't see any signs of a leak on the ground, She was parked on a dirt drive way. On the ride to the cruise in I had the vent turned on to auto, the a/c is broken so it just blows air and was driving about 70 mph. On the way back I turn the vent off and drove about 55-60mph. Any suggestions?

[Hoodlum Rocky]

I think that you just worked a big air pocket threw the system. It can air lock the coolent some times.

[pyro]

any water in the oil? Pull the dip stick.

[tonytheskin]

I think that you just worked a big air pocket threw the system. It can air lock the coolent some times.

That was my guess, did you bleed the system for air before putting cap on?

[Guest]

yeah unless you have an internal leak - ouch!

[Morella]

I got the water pump in my hearse replace the week before last. I was heading to a cruise in that was about an hour away, driving on the interstate and the water light came on. I pulled over as quick as I could. After She cooled down and I opened the radiator cap, I checked the fluid and I couldn't see it. I had checked it before I left so I know it was full. I put over two gallons of water and still could see anything. Got to a gas station and filled up the radiator with water and turned around and headed home with no problem. The next morning I went and checked and the radiator and the water level was just below the top. I didn't see any signs of a leak on the ground, She was parked on a dirt drive way. On the ride to the cruise in I had the vent turned on to auto, the a/c is broken so it just blows air and was driving about 70 mph. On the way back I turn the vent off and drove about 55-60mph. Any suggestions?

Try driving it at 70 again and see if it overheats. If it doesn't, drain out the water and mix it back to 50/50 coolant. Be sure that your radiator cap is in good condition. If in doubt, replace it.

-d

[JustGrim]

I would check that oil cap for sure--if it is foamy then you have a major problem with the antifreeze mixing with the oil which = expensive fix. If not, then it is within the cooling system itself probably. Then check for hose cracks, loose clamps, untight rad. cap, and hope it was just a air pocket in system.

I had a problem with one of mine similar to this when I did not secure the radiator cap on correctly.

[Abnorml]

any water in the oil? Pull the dip stick.

I pulled the dip stick, only saw oil.