What should the fuel pressure be on a 1992 gm truck be?

The fuel pressure specification for a 1992 GM truck depends heavily on the engine. There's no single answer. You need to consult your vehicle's repair manual or a reliable online resource specific to your engine (e.g., 4.3L V6, 5.0L V8, 5.7L V8, 6.2L V8, 6.5L Diesel, etc.).

The pressure will be specified in PSI (pounds per square inch). You'll likely find it in a section dealing with fuel system diagnostics or specifications.

To find the correct pressure:

1. Identify your engine: This is crucial. The information is usually on a sticker under the hood or in your vehicle's paperwork.

2. Find a repair manual: A Haynes or Chilton manual for your specific year, make, and model will have this information.

3. Use a reliable online resource: Sites like GM-Trucks.com or other forums dedicated to GM trucks might have the information for your specific engine, but always verify the information with multiple sources if possible.

Without knowing the engine, providing a fuel pressure is impossible and potentially dangerous. Incorrect pressure can lead to poor performance, damage to the engine, or even a fire. Always consult your vehicle's documentation or a professional mechanic.