Were is the coolant temp sensor in a 5.4 ford engine 2004?

The coolant temperature sensor (CTS) location on a 2004 Ford 5.4L engine depends on whether it's a Triton V8 (most common) or a different variant. However, in most 2004 Ford 5.4L Triton V8 engines, the primary coolant temperature sensor is located in the intake manifold. It's usually a single-wire sensor, and it's not always easy to see without removing some components.

You'll likely need to:

* Consult a repair manual: A Chilton's or Haynes manual specific to your year and model will have a diagram showing the exact location and how to access it.

* Use a diagram from a reputable online source: Sites like AutoZone or similar often have diagrams you can look at based on your vehicle's VIN.

WARNING: Be careful when working around the engine. The coolant may be hot, even after the engine has been off for a while. Allow sufficient time for the engine to cool down before attempting any work.

Because there can be slight variations between engine configurations, relying on a picture or general description alone is risky. Always use a repair manual or a reliable online resource specific to your vehicle to avoid mistakes.