01 Deville Dts Missing.
Hey hopfuly someone can help me out i have a 01 Deville DTS with 80,000 miles and it has a slight miss at idle. i thought it might be plugs so i had the plugs replaces and it is still the same i have had the problem now for about 6mo. any help is appricated. Thanks in advance.
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A scanner that can read misfires and o2 would be very help full. As far with out one check plugs see if 1 looks different than than others, rust on coil tips, vacuum leaks, and heavy carbon build up at throttle plate.Cleaning injectors may help.
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