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How to Change the Thermostat on a PT Cruiser

by Russell Wood

The cooling system is a critical part of your vehicle; one of the first parts that can fail in it is the thermostat. If it goes out, water isn't directed through the block as necessary, which means your engine won't cool off. Replacing the thermostat on your PT Cruiser isn't incredibly difficult, but it can be frustrating. The job should take about 30 minutes when done correctly.

Step 1

Pop the hood and locate the thermostat. It's on the passenger side of the engine and has a plug leading into it.

Step 2

Unplug the thermostat housing from the engine block using the 3/8-inch ratchet and socket set. The housing will come off in your hand and then you can pull out the old thermostat.

Step 3

Scrape off the engine block and the thermostat housing's mounting surfaces with the gasket scraper. This is to ensure the replacement gasket seals correctly.

Step 4

Place the replacement thermostat into the engine block and place the gasket over the ends of the bolts in the thermostat housing to keep them aligned.

Bolt the thermostat housing into the engine block using the 3/8-inch ratchet and socket set.

Items you will need

  • 3/8-inch ratchet and socket set
  • Gasket scraper
  • Replacement thermostat
  • Replacement thermostat gasket

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