Parts for tune up 2000 ford excursion
If it is an EFI engine then the parts that you will need for a tune up will be indicated in the fault codes
The ECM of the vehicle continually tunes the engine while running ( around 100 times a minute) and as long as all the sensors are within parameters ,the engine will remain in tune
any sensors that are failing will leave a fault code and just because the engine light is not on doesn't mean that there are no fault codes recorded
basically "good mechanics do not fix what isn't broken"
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