Question: fuel injector cleaning
check engine lite has come on twice each time the codes indicated vacuum leak with the EGR valve code first,a smoke test was done but shop said nothing turned up. but said the car could use injector cleaning.my ford factory manuel says do not clean that they either work or not and testing them is the way.the gas mileage is always20mpg or better so i don't know how this and codes showing a vacuum are related. what is my next move, wait and see what codes come up again or do the cleaning.
Richard W
Expert Mechanic
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