2008 GMC ENVOY check engine

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Page 301 of 468

GMC ENVOY 2008  Owners Manual Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control

Page 304 of 468

GMC ENVOY 2008  Owners Manual Filling a Portable Fuel Container
{CAUTION:
Never �ll a portable fuel container while it is in
your vehicle. Static electricity discharge from
the container can ignite the fuel vapor. You
can be badly

Page 307 of 468

GMC ENVOY 2008  Owners Manual A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-21.
B. Engine Coolant Recovery Tank. SeeCooling System
on page 5-30.
C. Windshield Washer Fluid Reservoir. See “Adding
Washer Flu

Page 309 of 468

GMC ENVOY 2008  Owners Manual A. Engine Coolant Recovery Tank. SeeCooling System
on page 5-30.
B. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-21.
C. Windshield Washer Fluid Reservoir. See “Adding
Washer Flu

Page 310 of 468

GMC ENVOY 2008  Owners Manual Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The

Page 314 of 468

GMC ENVOY 2008  Owners Manual It is possible that, if you are driving under the best
conditions, the oil life system might not indicate that an oil
change is necessary for over a year. However, the engine
oil and �lter must be cha

Page 317 of 468

GMC ENVOY 2008  Owners Manual Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
A good time to check your automatic transmission �uid
level is when the engine oil is changed.
Change the �uid and �l

Page 318 of 468

GMC ENVOY 2008  Owners Manual Checking the Fluid Level
Prepare your vehicle as follows:
1. Park your vehicle on a level place. Keep the engine
running.
2. With the parking brake applied, place the shift lever
in PARK (P).
3. With