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Are 3.1 in a 1993 Cutlass Supreme and a 1993 3.1 Lumina non interference engines?
Jul 28, 2010
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The 3.1 GM engines have timing chains But if it breaks the valves will hit the pistons and cause damage
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How often should they be replaced?
Unless it's noisy or affects performance no replacement is required just change your oil and filter regularly
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How often should they be replaced?
Unless it's noisy or affects performance no replacement is required just change your oil and filter regularly