Question about 2002 GMC Envoy

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My 2003 envoy has gas in airbox/ chugs and sometimes runs on after shutting it off

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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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2 Answers

Have 2003 Dodge dakota with 4.7 8 cylinder engine. When I try to start it engine turns over and over without starting . On the third, forth try it will start but slowly chugs for a few seconds then runs...


Remove the gas cap, to equalize the air-pressure.
The partial vacuum (no air got in to replace the gasoline that has been pumped out) leads to the lack of gas reaching the engine.
Works for my 2002 Taurus.

Mar 25, 2015 | 2003 Dodge Dakota Club Cab

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Chugging while driving


tune-up, dirty gas, dirty air filter...when last completed?

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Chugging in a 2003 h2


try it with no fuel cap and see what happens ,if this cures the fault drill a hole in the fuel cap of 2mm

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Were are the spark plugs on 2003 gmc envoy 6 plugs


The spark plugs are located on the top of the engine, you have to remove the airbox to access the coil pack (1) and then the plugs (5) (see picture)


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May 29, 2012 | 2003 GMC Envoy

1 Answer

My 2003 GMC envoy will start then shut off unless I give it gas why is this


Bad MAF mass air flow sensor, air filter, fuel filter or a vacume leak.

Oct 04, 2011 | 2003 GMC Envoy

2 Answers

2003 gmc envoy!!! Need help asap! For the last


Ask a garage to reset your computer, could be a recurring trip fault causing the car to shut down.

Clearing it might solve the problem - if not, the fault codes will tell you what the problem is!

Apr 30, 2010 | 2003 GMC Envoy

1 Answer

Why does my heater keep running after I shut my Envoy off?


I have the same problem. I have also been searching the web for a solution. I came across someone saying that it was the heater module located behind the glove department. I can't find now where i read this but it said the part was approx. $150.00. He was having same problem as us, heater wouldn't obey touch commands to turn on/off or when heater did blow it would only blow real low or real high. Like you, after turning off engine blower motor was still running even though it wasn't blowing air out.
I'm tired of paying for things that are not due to normal "wear and tear" on my 2003 Envoy. Let me know if this helps you and how you repaired it. I'll probably have to take mine to the shop but because I'm a "girl" I swear they think I'm crazy with all my Envoy complaints.

Dec 01, 2008 | 2003 GMC Envoy

1 Answer

Starting problems...


YES YOU NEED TO CLEAN YOUR TERMINALS

Aug 11, 2008 | 2002 GMC Envoy

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