How to stop my Chev. 3500 454 from over heating.. I have had the radiator cleaned, replaced hoses, cap, thermostat, water pump, clutch fan but still runs to hot just pulling itself around, no load.

Asked by May 13, 2015 at 06:56 PM about the 1990 Chevrolet C/K 3500

Question type: Maintenance & Repair

Has always over heated in summer time.

5 Answers

7,475

Try a cooler thermostat and a set of electric cooling fans.

18,575

Head gasket issue?

Best Answer
25,605

drain the system buy 2 bottles of water wetter add to radiator and fill with straight water.then report back...

1 of 1 people found this helpful.

Might check the fan clutch....

Change to a 165 degrees thermostat.it has to run cooler

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