Mechanics

2.8L WONT STOP OVERHEATING!

1983 GMC S15

Engine Cooling problem
1983 GMC S15 6 cyl Two Wheel Drive Automatic 157000 miles

I have replaced a waterpump due to a broken plastic impeller. Replaced thermostat to be safe. I ran the engine and tried to purge any air in the system, still ran hot. It doesn't appear to be flowing in the radiator. The pump that I replaced said counter clockwise rotation, but my engine only runs clockwise and it uses a V-belt system. I haven't replaced the radiator yet, do I need too. I also replaced the temperature sender to make sure I was getting an accurate reading. Any suggestions, please help.
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Ntispdfreak
May 3, 2008.




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