1998 Chevrolet Blazer Cooling system

Tiny
UP29BALNE1
  • MEMBER
  • 1998 CHEVROLET BLAZER
  • 4.3L
  • V6
  • AUTOMATIC
  • 60,000 MILES
I just did a tune up on my S-10 Blazer, plugs, wires, cap, rotor, air filter, changed out the coolant, thermostat, front brake pads, rear brake pads. I installed a fail safe thermostat which was considerably more money then the OEM. Supposedly if it fails it is supposed to default and stay in the wide open state rather then in the closed position. OEM was 195° and the one I installed was 170°. I figured it would keep even cooler by opening sooner. I was telling a friend that is a mechanic and told me that the computer will never let it go into the closed loop mode because it needs to run at 195°-205° before all the sensors will work properly. Is this true and do I need to go back and replace it with a 195° unit. Thanks for your help Mitch
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Tuesday, August 4th, 2015 AT 4:15 PM

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Tiny
HMAC300
  • EXPERT
Yup exactly what he said
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Tuesday, August 11th, 2015 AT 6:44 AM

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