Where is the fuel pressure sensor located on a Chevy Colorado?
Typically, the fuel pressure sensor is mounted on the fuel rail on top of the engine. On diesel-equipped Colorados with the 2.8L Duramax, it's on the high‑pressure rail near the injectors.
Gasoline engines: locating the fuel pressure sensor
On Chevrolet Colorados with gasoline engines (2.5L inline‑4 or 3.6L V6), the fuel pressure sensor is mounted on the fuel rail that sits on top of the engine. The rail runs along the top of the intake area and feeds the injection system.
- Location: installed directly on the fuel rail itself, usually toward the middle or toward the end of the rail depending on engine layout.
- Electrical connector: typically a small 2–3 pin plug that mates with the sensor.
- Appearance: a compact sensor with a threaded fuel port and a small electrical connector, often located near the rail’s sensor port used by the ECM.
In gasoline Colorados, the sensor is on the fuel rail atop the engine. Exact position varies by engine and year; consult the service manual or a repair guide for the precise sight line on your model.
Diesel engines: Duramax 2.8L location
For Colorados with the 2.8L Duramax diesel, the fuel rail pressure sensor is located on the high‑pressure rail, typically mounted along the side of the rail near the injectors. This sensor monitors the rail pressure in the common‑rail system.
- Location: on the high‑pressure fuel rail adjacent to the injector ports.
- Electrical connector: usually a small 2–3 pin connector wired to the engine computer.
- Identification: you’ll see the sensor screwed into the rail with a short plastic/metal connector block and a wiring harness.
Duramax Colorado rail pressure sensors are mounted on the high‑pressure rail; if you can’t locate it, trace the fuel line from the high‑pressure pump to the rail and look for the sensor along the rail.
Summary
The fuel pressure sensor on a Chevy Colorado is located on the fuel rail for gasoline engines and on the high‑pressure rail for the Duramax diesel. It is a small sensor with a 2–3 pin electrical connection and a single threaded port into the rail. For the exact location on your year/model, refer to the owner’s manual or a repair guide specific to your Colorado’s engine type and year.
