timing chain or gears

2000 GMC JIMMY
6 CYL • 2WD • AUTOMATIC
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GFDCAR1
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does a 2000 GMC Jimmy 4.3 have timing gears or a chain?
Feb 23, 2011 at 5:16 PM
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WRENCHTECH
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It has a chain. It's designed just like a 350.
Feb 23, 2011 at 5:25 PM
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GFDCAR1
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The parts place gave me what appears to be the balance shaft gear and the cam gear, they did no show a chain, any ideas or does the chain run the oil pump in this year model like the 5.3 engine?
Feb 23, 2011 at 5:39 PM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,761 POSTS
It has a timing chain just like the 350 but it also has a balance shaft behind it. https://www.2carpros.com/images/external/131363446.gif
Feb 23, 2011 at 5:43 PM
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GFDCAR1
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thanks
Feb 23, 2011 at 5:48 PM
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