why is my 1999 chevy s10 blazer overheating

Asked by 2feathers55 Jun 14, 2016 at 04:10 PM about the 1999 Chevrolet Blazer LS 4-Door RWD

Question type: Maintenance & Repair

just put new thermostat...replaced hoses....flushed radiator and it is still
running hot....when i turn my ac off temp goes down a little. I am not loosing
water.

2 Answers
101,595

KenF answered 7 years ago

At your truck's age you might need a new water pump. The fins on the impeller may be worn down to nothing (antifreeze also takes its toll). When the truck is running squeeze the radiator hoses and see if they feel like they are under pressure.

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30

Chad answered 5 years ago

Same problem, I even changed the water pump. Still over heating.

3 people found this helpful.
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