Generally, fuel pressure for GM vehicles of that era is in the range of 35-45 PSI, but this is a broad range and not guaranteed to be correct for your specific car. Using the incorrect fuel pressure can damage your fuel system.
To find the correct specification:
1. Locate your vehicle's engine size (e.g., 3.1L, 3.8L, etc.) This information is usually found on a sticker in the engine compartment or on your vehicle's title/registration.
2. Consult your owner's manual or a repair manual. These resources will provide the precise fuel pressure specifications for your engine.
3. If you cannot locate your manual, you can try searching online using your vehicle's year, make, model, and engine size. Be cautious about the information you find online and always verify it with a reliable source.
Do not attempt to adjust fuel pressure without understanding the correct procedure and safety precautions. Incorrect fuel pressure can lead to engine damage or fire.
