20 Most Recent 2008 Chevrolet Colorado Extended - Page 6 Questions & Answers

Dirty idle air control actuator and or throttle body. Vacuum leaks , possible faulty throttle body

It is actually the piston ring

when ever you stop that hapings

CHECK FUSE AND CONNECTIONS TO TAIL LIGHTZ

relay under hood

The tail lights are on a separate circuit bad bulbs or fuse labelled TM or tail lights in fuse box.

Usually on or near intake mainfold. Follow the EVAP hoses to the engine, it will be the one valve the the hoses go to the is connected to intake manifold vacuum.

Check the bulb socket to make sure it's making good contact. Even add some dielectric grease to possibly help. Most sockets will melt and not be able to see it till you remove the bulb.