On a 92 Pontiac grand prix coolant sensor 3.1l located?

The coolant temperature sensor (CTS) on a 1992 Pontiac Grand Prix 3.1L is typically located on the intake manifold, near the thermostat housing. However, it's *not* always in the same exact spot across all variations. To be absolutely certain, you need to:

1. Consult a repair manual specific to your 1992 Pontiac Grand Prix 3.1L. A Haynes or Chilton manual will have diagrams and precise locations. This is the most reliable method.

2. Look at diagrams online: Search for "1992 Pontiac Grand Prix 3.1L coolant temperature sensor location" on Google Images. Look for images of the engine bay and try to match it to yours. Keep in mind, variations exist.

3. Visually inspect your engine: The sensor is usually a single-wire or two-wire sensor with a connector plugged into it. It's generally near the thermostat housing and coolant passages. Look for a sensor that's screwed into a metal fitting.

Caution: Be careful when working near hot engine components. Let the engine cool completely before attempting any work.