The 2003 GMC Envoy inline 6 engine does not have a timing belt but a timing chain. No need to replace anything unless the chain breaks.
how to replace wheel bearings on 2004 GMC envoy?
how many gallons of gass will a 2003 GMC Envoy hold
I am not showing a 2010 GMC Envoy...do you mean 2009
ac delco spark plugs are type that originally came with 2003 GMC envoy
The diagram is under the hood. Pull tentioner to release tention remove belt/ replace
$9.99
Where is the fuel pump fuse
6x5
Many members on our enthusiasts forum have gone over 100,000 miles on the same water pump. Have a look at our enthusiasts forum for more details www.trailvoy.com
The airbag light in the 2003 GMC ENVOY can be reset by disconnecting the battery for about 5 minutes. Then reconnect the battery, turn the key to on without starting the vehicle, and pump the gas pedal three times if the light is still on after reconnecting the battery.
GM vehicles do not have a fuel pump inertia switch. There is nothing to reset. Check the fuse and fuel pump relay.