Question about 2006 GMC Envoy Xl
Here's a list of things to do or check to help this....
Change your air filter
Change your fuel filter
Change your spark plugs and use A/C Delco 41-103
Can change your upstream 02 sensor
Clean your throttle body, this is a must*
Can run a 1/3 of a can of Seafoam through the brake booster and the rest in the tank. This will clean your intake manifold, injectors, and lube the system.
Make sure your tires have the recommended amount of air in them, see tire sidewall.
All of these will get you back to getting better gas mileage.
Posted on Mar 31, 2011
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Posted on Jan 02, 2017
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