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Bad gas mileage GMc envoy 2002

thats probably what it gets, tune it up, change air and fuel filters, E3 spark plugs, plug wires, what ever it takes to make it run better, drygas in fuel tank, every fill up, (red bottle, has fuel injector cleaner) todays gasoline has 10% ethanol in it, not good for older cars.

Jan 15, 2013 | 2002 GMC Envoy

1 Answer

I have a 98 gmc sierra that hesitates when given gas when cold changed maf and spark plugs but still happening

had same problem with 2002 gmc ,cleaned inside of throttle body and runs fine .

Oct 29, 2011 | 1998 GMC Sierra

2 Answers

Where are the spark plugs on GMC 2002 Envoy

Follow the wires coming out of the distributor cap to the spark plugs.

Jan 23, 2011 | 2002 GMC Envoy

1 Answer

Finding spark plugs and changing them on a 2002 gmc envoy sle

On he very top of your engine, there will be six coil pack, they all look the same, from front to rear of engine, remove 10mm bolt, disconnect elec. harness, pull coil pack out, spark plug will be in there, do one at a time, this is the spark plug gap .044"

Sep 16, 2010 | 2002 GMC Envoy

1 Answer

Change sparks plug wires on my 2002 yukon denaili


Jun 30, 2010 | 2002 GMC Yukon Denali

1 Answer

2002 GMC envoy 4.2 6cylinder have now idea where they are located. can't seem and i don't see any wires to follow

i am guessing you are talking about spark plugs take the plastic piece off top of motor you will see the coils lined up they are underneath the coils (only change on cool motor may strip)

Nov 02, 2009 | 2002 GMC Envoy

1 Answer

I am changing the spark plugs on my 2002 GMC Envoy. I need to know what the gap will be

.043. Good luck. Thanks for rating my response and for using FixYa!

Jun 28, 2009 | 2002 GMC Envoy

1 Answer

Change sparkplugs

go to mechanic

Aug 17, 2008 | 2002 GMC Envoy

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