Overview
The Auto Meter Factory Match Fuel Rail Pressure Gauge, part number 8586, is an electronic gauge with a 0 – 30000 psi range. It fits 2003–2006 Dodge Ram 2500 and Ram 3500 trucks.
Its Factory Match design offers an orange pointer for quick glances at engine performance. The gauge has a white face and black bezel.
Key features
- Electronic fuel rail pressure gauge
- 0 – 30000 psi range with full sweep
- White face with black bezel
- Orange pointer for quick reading
- Direct fit for the listed Dodge Ram trucks
Reading fuel rail pressure
Fuel rail pressure shows how well the injectors are being supplied, so the gauge is most useful when you compare readings against a known baseline. Record the pressure at idle and under load on a healthy engine, then compare later readings. A gradual drop often points to a failing pump or regulator, while a sudden change can mean a leak or electrical fault.
Electronic gauges depend on a clean signal and stable power. Route the sensor wiring away from heat sources and moving parts, and keep the ground connection solid. Check the gauge after the first few drives and after any fuel system work, since a loose connector can look like a real pressure change.
- Log pressure at idle and under load
- Keep the sensor wiring clear of exhaust heat
- Inspect the fuel filter during diagnosis
- Check connectors after rough trail use
Specifications
| Brand | Auto Meter |
|---|---|
| Part number | 8586 |
| UPC | 46074085864 |
| Gauge type | Fuel rail pressure |
| Gauge series | Factory Match |
| Range | 0 – 30000 psi |
| Sweep | Full sweep |
| Type | Electronic |
| Face | White |
| Bezel | Black |
| Fitment | Direct Fit |
Vehicle fitment
The manufacturer fitment list covers the 2003–2006 Dodge Ram 2500 in Laramie, Power Wagon, SLT, ST, Sport and TRX4 trims, and the 2003–2006 Dodge Ram 3500 in Laramie, SLT, ST and Sport trims.
Other Dodge and Ram models, and generations outside these two, are not on this list. Confirm your vehicle’s year, model and trim before ordering.
What’s included
The fuel rail pressure gauge is the item described.
Not included: a pressure sensor or wiring. Confirm the sensor requirements before installation.
