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Where is the engine coolant temperature sensor on a 2002 Chevy impala?

The Engine Coolant Temperature (ECT) sensor on a 2002 Chevy Impala is typically located on the intake manifold, near where the coolant enters or leaves the engine. However, the *exact* location can vary slightly depending on the engine (3.4L, 3.8L).

To find it definitively, you'll need to:

1. Consult your owner's manual: This is the best resource. It will have diagrams showing the location of various sensors.

2. Use a repair manual (like a Haynes or Chilton manual): These manuals usually have detailed diagrams and instructions.

3. Look online: Search for "2002 Chevy Impala [engine size] ECT sensor location" on sites like YouTube or repair forums. Pictures and videos can be very helpful.

Important Note: Be cautious when working around the engine. The coolant will be hot if the car has recently been running. Allow it to cool completely before attempting any work.

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