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What happens when you change the thermostat on a Chevy Colorado?

What happens when you change the thermostat on a Chevy Colorado?

Code pops up, went from stable just above halfway (X) to stable just below (Y); engine running rich and mpg went to shit. Changed tstat, code went away, back to stable at (X) My truck usually reads just above the 1/4 mark on the guage . . . it has since I got it.

Where are the coolant bolts on a Chevy Colorado?

At this point you can look through and see where the coolant line attaches to the thermostat housing. You will see the two 10mm (they aren’t 10mm but everything else was too small or too large and 10mm was the best fit and worked) bolts one on the top left and one on the bottom right of the housing.

When to change the thermostat in your car?

Click to expand… Thermostats generally don’t get changed until they stop working, hoses just inspect them and if not cracked or dry rotted then use them. You’ll know when your thermostat stops working, either you will over heat or your truck/car will not warm up properly.

Which is the best thermostat to read the water temp?

Scangauge and Ultragauge will both display the water temp but if you don’t want to purchase one of those, a shop should have an infared thermometer to read it for ya. Hope that’s helpful. To put any concerns to rest, reading the physical water temperature would be best.

Code pops up, went from stable just above halfway (X) to stable just below (Y); engine running rich and mpg went to shit. Changed tstat, code went away, back to stable at (X) My truck usually reads just above the 1/4 mark on the guage . . . it has since I got it.

At this point you can look through and see where the coolant line attaches to the thermostat housing. You will see the two 10mm (they aren’t 10mm but everything else was too small or too large and 10mm was the best fit and worked) bolts one on the top left and one on the bottom right of the housing.

Click to expand… Thermostats generally don’t get changed until they stop working, hoses just inspect them and if not cracked or dry rotted then use them. You’ll know when your thermostat stops working, either you will over heat or your truck/car will not warm up properly.

Scangauge and Ultragauge will both display the water temp but if you don’t want to purchase one of those, a shop should have an infared thermometer to read it for ya. Hope that’s helpful. To put any concerns to rest, reading the physical water temperature would be best.

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Ruth Doyle