Does a 2006 GMC Envoy have a timing belt or chain?
The GMC Envoy is not equipped with a timing belt–it is equipped with a timing chain. Timing chains do not have specific service intervals; they are designed to last the life of your vehicle. Nevertheless, like all parts, they can be subject to failure.
What does a timing chain sound like when it’s going bad?
Engine rattles while idling Under normal conditions, the engine should have a consistent, smooth sound that indicates everything is running as it should. However, when the timing chain is loose, it may cause a vibration inside the motor and will be indicated by a rattling noise as the engine idles.
Is the GMC Envoy equipped with a timing belt?
The GMC Envoy is not equipped with a timing belt–it is equipped with a timing chain. Timing chains do not have specific service intervals; they are designed to last the life of your vehicle. Nevertheless, like all parts, they can be subject to failure. At some point, the timing chain may require replacement, but this is unlikely.
How can you tell if your timing chain is worn?
A worn timing chain can be diagnosed by using a timing light to observe the relation of the timing marks on the timing cover with the marks on the crankshaft balancer. If the marks move back and forth in relation to each other instead of remaining in a steady position while the engine is running, the timing chain is most likely very worn.
How does the timing chain work on a GM engine?
On most GM vehicles with V-8 or V-6 engines, a metal timing chain is used to connect the camshaft to the crankshaft. This causes the camshaft to move in synchronization with the crank, causing the camshaft to open and close the valves in the proper sequence and duration for the intake, power stroke and exhaust cycle.
How often do GMC Envoy tires need to be rotated?
All GMC Envoys are equipped with GM’s Oil Life Monitoring System. Your Envoy’s tires should be rotated every 7,500 miles. The GMC Envoy is not equipped with a timing belt–it is equipped with a timing chain. The engine air filter is designed to last approximately 50,000 miles; it should be replaced at this time.