Checking The Fuel Pressure Regulator For Leaking

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.

Help Keep Us Free-
Tip / Donation To the Mechanics

Q and A Main

How Things Work