Question about 2002 GMC Envoy
You need to change your fuel pressure regulator ASAP before the vehicle starts on fire.
We see them leaking all the time and get one towed in every once and a while that has started on fire because of this.
The fuel pressure regulator is located between the valve cover and the alternator. There will be a rubber vacuum hose going to it. Remove that hose from either the regulator or follow it up to the side of the air chamber and remove it. If there is liquid fuel in the hose the regulator is bad!
Posted on Oct 15, 2010
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Posted on Jan 02, 2017
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