Installing a thermostat in my 1996 Chevy 1500 truck

Asked by GuruVWNVZ Aug 10, 2018 at 03:59 PM about the 1996 Chevrolet C/K 1500

Question type: Maintenance & Repair

After installing the new one(thermostat)ran
great,after cooling,squezzed  the upper radiator
hose,and heard the new thermostat bouncing
around in housing,that can't be normal,did I forget
something,it ran nice and cool

2 Answers

26,640

The picture is for gasoline engine, as far as the thermostat being turned up or down in the cavity, is that how you placed it? You may have air in the system? Some makes and models have bleeder valve for cooling system, some don't. For a while, keep checking the coolant level in radiator, cool engine, to make sure it is full.

1 people found this helpful.

There is a small rubber gasket, that goes on the thermostat itself. Did you forget to install that, before installing gasket and housing? If so the thermostat is too small for the manifold opening, allowing it to move about 1/8 to 1/4 of an inch.

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