How to Change a Thermostat in a Car

Changing a thermostat is not so hard work. You can change it yourself very easily. Just need some knowledge about it and have to follow the rules to change it.

Simple Steps to Change Your Thermostat for 5.7 Hemi

Whenever you notice the signs discussed above, your thermostat is probably bad and needs to be replaced you thermostat IMMEDIATELY.

Here are some DIY steps for changing your 5.7 Hemi thermostat:

  • STEP 1: Ensure that the car engine is cold for safety reasons.
  • STEP 2: Locate the thermostat housing; it is usually placed at the end of the top radiator hose. You can also find the radiator near the bottom hose in some vehicle models.
  • STEP 3: Lift the vehicle with a floor jack until you have enough room to operate below.
  • STEP 4: Remove the drain plug of the radiator and allow the coolant to pour from the radiator into a drain pan. If your radiator doesn’t have a drain plug, you can simply remove the clamp from the lower radiator hose, pull out the hose, and allow the coolant to pour.
  • STEP 5: Once the cooling system is completely drained, you can then unclamp and remove the hose attached to the thermostat housing. But first, you have to unscrew the bolts using a socket spanner. Once you’ve removed the hose, ensure to keep it safe from contaminants.
  • STEP 6: Remove the damaged thermostat by dragging it out with a plier.
  • STEP 7: Install the new replacement thermostat and ensure it sits properly then fasten the bolts.
  • STEP 8: Remember to fix back the drain plug (or the lower radiator hose) which you removed earlier.
  • STEP 9: Add the drained coolant back into the system until it reaches the ideal level in the coolant reservoir.
  • STEP 10: The next step is to bleed the coolant. Ensure to follow the manufacturer’s recommendations for bleeding: It could differ in various vehicles. However, bleeding generally has to do with removing air from the cooling system. To do this, you just have to run the car for a while at a full operating temperature with the heater on. Turn off the engine once it gets too hot.
  • STEP 11: Once you are done bleeding, ALLOW THE ENGINE TO GET COLD for safety reasons. After that, you may want to add a little more coolant to maintain the appropriate level. Finally, ensure to close the radiator cap properly and you are good to go.

I think these easy and good tips will help you to change your thermostat properly. So Change your thermostat and protect your car engine from overheating.

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