Video pages
Checking GM
fuel pressure regulator for leaking.
This can cause check engine light and misfires
and hesitation.
On the 3.1 / 3.4 / 3.8 v6 engines, a leaking regulator can
cause hard starting, poor fuel economy, stalling, check
engine light, gas smell under hood.
Checking The Fuel Pressure Regulator For Leaking

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