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Autozone has a repair guide on their site http://www.autozone.com/shopping/repairGuide.htm?pageId=0...

how do I change the thermostat on a 2002 PT Cruiser

There is no thermostat on the PT Crusier, heat is detected by head sensors at two locations on the engine block.

how do i change the thermostat on a 2002 pt cruiser

how do i change thermostat on pt cruiser

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

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.

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.

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.

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

Read more: How to Change the Thermostat on a PT Cruiser | eHow.com http://www.ehow.com/how_5643178_change-thermostat-pt-crui...

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Things You'll Need:
3/8-inch ratchet and socket set
Gasket scraper
Replacement thermostat
Replacement thermostat gasket

Read more: How to Change the Thermostat on a PT Cruiser | eHow.com http://www.ehow.com/how_5643178_change-thermostat-pt-crui...