your firing order is 165432
When troubleshooting problems within an engine, it can help to know the firing order. The firing order of a 1991 Chevy Lumina 3.1L is 1-2-3-4-5-6.
7.99 at autozone you have to order it .
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The 1993 Chevy Lumina 3.1 liter engine timing belt can be found on the front of the engine. You will need to remove the front engine cover in order to access the timing belt.