2001 Chevy Blazer Engine runniing too cool

2001 CHEVROLET BLAZER
153,000 MILES • 6 CYL • 4WD • AUTOMATIC
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RBROWN640
  • MEMBER
  • 1 POST
My service engine light is on. Computer code indicates coolant temp below thermostat is too cool. I know that the thermostat sticking open can cause the engine to run too cool. Is there anything else this could be?
Feb 10, 2010 at 9:24 AM
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BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
engine coolant temp. sensor may be faulty sending incorrect signal to computer. most likely faulty thermostat though.
Feb 10, 2010 at 3:06 PM
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