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Can you adjust timimg on a 1997 gmc suburban?

Updated: 8/19/2019
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13y ago

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YOU can if you have an engine scanner. if you have not fooled with the distributor then there is no need to adjust the timing because it is controlled by the ECM / computer. It will adjust it's self.

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13y ago
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Q: Can you adjust timimg on a 1997 gmc suburban?
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