1997 Chevy Tahoe low engine temp.

1997 CHEVROLET TAHOE
194,000 MILES • V8 • 4WD • AUTOMATIC
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HUNTER12
  • MEMBER
  • 1 POST
I replaced the thermostat, radiator and radiator cap and the engine temp will not stay at or near 195 degrees. it drops to 150 degrees once the thermostat opens. I believe this is causing poor mpg. any ideas
Mar 10, 2008 at 6:58 PM
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BMRFIXIT
  • ✓ASE Certified Mechanic
  • 19,053 POSTS
  • ASE Certified Mechanic
Use a thermometer to check the coolant temp at the radiator
you may have bad sending unit
or a defective thermostat
Mar 10, 2008 at 7:47 PM
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RBRITTON
  • MEMBER
  • 3 POSTS
May have the wrong antifreeze / water ratio for the temp. of your area
Mar 17, 2008 at 6:07 PM
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