It could be a number or things. The clips holding the mechanical rods could break. Take the panel out and check.
. https://www.youtube.com/watch?is=oZBc6lHbB4VVy8iC&v=oeSUS_rGKAo&feature=youtu.be
Hit the tire from the rear while rotating.The wheels are hub centric. There is a little lip in the center of the hub, the center of the wheel sits on it. Next time put some anti seize on it.
There are some exclusions to the new rules, according to the CEC:
Competition tires designed for motorsports
Winter-type snow tires
All-season winter performance tires
Used and retreaded tires
Deep tread tires
Tires designed for ATVs and other off-road vehicles
Large off-road tires for use up...
Plugs and wires are a good start. P0440- P0442 related to the charcoal canister or the purge valve. Since you have a 2002 your charcoal canister is under the truck. The purge valve should be in the engine bay check the resistance should be between 30 ohms plus.
Remove the the two hoses and blow...