Cooling system trouble
1991 Chevrolet S10 Blazer

Cooling system trouble

(1991 Chevrolet S10 Blazer)
heat core replaced, fan too, ran fine for 6 months, now I changed out my termastat still running hot, it was leaking a small amount, so I put some radator leak stop and drove it for 20 min., running nice and putting out good heat with no leaks, the next morning I started it up no leaks but started to over heat right away
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Popular Answer
on April 19, 2011
Suspect you have radiator flow problems at the core. Can check with infrared temp gun for large differences across rad core when running.
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General Diagnosis
$88 - $111 Learn More
on April 19, 2011
Suspect you have radiator flow problems at the core. Can check with infrared temp gun for large differences across rad core when running.
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