20 Most Recent 2008 GMC Envoy Questions & Answers

Drill a hole in a piece of plywood that fits over the lighter. Have someone press the plywood onto the plastic. Put a cord with slip knot over the lighter stem and add a wooden T-Handle to the other end of the cord, you pull and the other person presses.Just noticed this is an old question that has had spam removed which resurrected it...

Question edited for clarity and toss in some CAPS. Question moved to model category. Help in the link. Basically something in the linkage was come apart. The noise is the electronic solenoid. It is the same for all models, you just have to get in there. https://www.google.com/search?q=2008+GMC+Envoy+hatch+won%27t+lock ..

So your main problem is body roll? Did you replace the swaybar bushings? Replacing my swaybar bushing on my 06 fixed my body roll problems. If you did, did you get the right size? There are 2 different sizes of bushings. $3500 for the front end??? Look at Detroit Axle next time. I did my entire suspension for $410, including hubs, shocks, struts, UCA, LCA, Links, inner, and outter tie rods.

What year is your truck?

Here's a link on your P0418 code Terry. P0418 OBD II Trouble Code Secondary Air Injection System Relay circuit...

Where are you coming up with this ? ISO 9141 and KWP 2000 this is a communication protacoll. when the scan tool is plug into the OBD port it uses a set amount of communication dialog to communicate with the ECM, Majority of time when a scan tool can not communicate with the vehicles ECM ,

General Motors Corporation

you can google the code to find out.

That's the air compressor for the leveling system

The solenoid is part of the starter motor. The battery cable connects directly to it.

The vehicle stabilization system has a fault that needs to be repaired.

Trailer wiring uses the fuses for the car lights. Turn signal, running ans brake lights. Some plugs also charge the trailer battery if so wired. Check the ground wire for a good body connection. This wire often gets overlooked and can stop all trailer lights if it fails.

The modules need to relearn the conditions it operates under. Take both battery cables off and touch them together for several minutes. Reconnect and start the engine. Drive the vehicle 20 or more miles in city traffic. That will relearn the modules.

if you have something in trailer hitch blocking bumper rear bumper dirty ,damaged rear bumper by sensor[s] or damaged /malfunction of sensor check the wiring and connections behind bumper those circular inserts are the rear sensors

Look to see if the electric radiator fans are working when the A/c is on.

I'm sure the question is WHERE is the valve located

I'd toy read the Manuel for the vehicle, it's the tire pressure warning light

Cruise control will always disable itself when any CEL light is present, so that's normal. The Stabilitrak light problem is a known common problem with these. Your steering wheel position sensor needs to be replaced. Mine does it every morning IF my steering wheel wasn't put into a straight position when I parked it. Straighten the tires, turn the ignition off and restart. Light will go out.