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What is normal fuel pressure PSI?

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Old 07-23-2003, 07:18 PM
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What is normal fuel pressure PSI?
Also if the pressure is below the normal is that due to the bad fuel pump.
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Old 07-23-2003, 07:49 PM
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41-47psi at idle with the vacuum hose to the regulator removed. A clogged fuel filter could cause lower pressure.
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Old 07-23-2003, 07:51 PM
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The fuel pressure should be around 41-47psi when engine is not running with the key in the on position, and the pressure should drop 3-10psi when the engine is running.

Low fuel pressure could be due to the fuel pump, clogged fuel filter, or clogged injector.
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