My Chevy 1500 is over heating

Asked by Mike19M81 May 27, 2020 at 01:04 PM about the 1998 Chevrolet C/K 1500

Question type: Maintenance & Repair

Air conditioner was on high while my truck was in park for
an hour when I put it in Drive not even 3 minutes it over
heated. Then I was putting water in the radiator and the
water was black or brown  what should  i do

2 Answers
39,035

beatupchevy answered 3 years ago

Let it completely cool off , top it off with water and run it , if it gets warm shut it off and do that again then you're pretty sure it's full enough ,, if the head gasket isn't blown you can test/replace the thermostat and start over , or do a compression test , is the exhaust white ? Is there goop under the oil fill cap ?

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9,515

brotherben answered 3 years ago

You need to flush your cooling system. Without flushing your cooling system routinely, you'll end up with gunk clogging up the system, thermostat sticking, and even the water pump malfunctioning.

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