That belt is the serpentine belt, not a timing belt. I think he wants to know about a camshaft timing belt. On most motors with a timing belt, you have to change it every 80,000 miles to keep it from breaking. My Pontiac Sunbird broke the belt twice, which did no damage because it was not an "interference engine" meaning that the pistons won't hit the valves. The motor just stops running.
My Isuzu truck, however was an "interference engine" and the motor self destructed at 60 MPH on a freeway. No problem, It was ready for the wrecking yard anyway.
Fortunately, your Grand Am has a timing Chain, which won't break under any normal usage and doesn't need to be changed.
The 2002 Pontiac Grand Am comes with either a 3.4L V-6 or a 2.2L 4-Cylinder engine. Neither has a timing belt. Both have timing chains.
Nowhere. it has a timing chain that should last forever as long as you keep your oil in good shape. doesn't matter if you have a 4 cylinder or a v6, they both use chains.
SOURCE: where is the timing belt in a pontiac grand am
Routine inspection of the belt may reveal cracks in the belt ribs.
These cracks will not impair the belt performance. The belt should be
replaced if the belt slip occurs if a section of the belt ribs are
missing. A single serpentine drive belt is used to drive all engine
accessories. All belt driven accessories are rigidly mounted with the
belt tension maintained by a spring loaded tensioner. The indicator on
the movable portion of the tensioner must be within the limits of the
marks of the stationary portion of the tensioner. Any reading outside of
these limits indicates either a defective belt or tensioner.
Fig. To remove the belt, use a 3/8 inch breaker bar in order to
rotate the drive belt tensioner in a counterclockwise motion
Good luck.
SOURCE: I need to see a diagram for a 2002 pontiac grand
what engine size may also have bent valves if chain went
SOURCE: changing serpentine belt 3.8 2007 pontiac grand
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