What is your question?
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What is your question?
170000 miles- last tune up at 120,000, slower than usual and is running rough. dealership offered to just replace spark plugs for $500...but I am sure there is more that needs to be done- so am wondering what is typically done with a tune up? Thank you
How long has your 2008 Mercury Mariner had this problem?
a few weeks
1 Reply
A “tune up” is performing the necessary repairs to enhance engine performance.. There are no specifics - and really never have been! Recommend contacting local auto repair facility for *hands-on* evaluations.