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The fuel pressure for a 1998 Pontiac Transport typically should be between 40 to 50 psi (pounds per square inch) when the engine is running. It's important to check this with a fuel pressure gauge to ensure proper fuel delivery and engine performance. If the pressure is outside this range, it may indicate issues with the fuel pump, filter, or pressure regulator. Always refer to the vehicle's service manual for specific diagnostics and specifications.

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1w ago

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