if timing chain broke would serpentine belt n pulleys move when trying to start?

Asked by May 25, 2012 at 04:17 PM about the 2002 Pontiac Grand Am SE

Question type: Maintenance & Repair

5 Answers

8,890

There should be a crank pulley that drives the serpentine belt. So the belt would still turn even if the timing belt was broken.

1 out of 1 people think this is helpful.
2,865

larry is correct, drive pulley for serpentine is the crankshaft.

your belt will tur the pulleys since it is connected to the crank , your valve train will not , open the oil fill cap & see if you can see the rocker arms moving up and down , if they don't move your timing chain or belt is broken.

1 out of 1 people think this is helpful.
105

Yes. But what makes you think the chain is broke.

95,155

If it's a four cylinder Ecotec, you don't want to spin the engine with a broken timing chain. It will bend the valves if they are not bent already. Remove the valve cover and you can see the chain on the passenger side,

5 out of 5 people think this is helpful.

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