I Have 130,000 miles on, should I change spark plugs?
heard it's an expensive job, have to remove the intake manifold the get to the back 3, should I spend $500 to do it?
No, on the $500, get quotes from other shops. Should cost you half that to change all 6.
You are luck you got that far. Your car will run a lot better with new plugs.
Yup, it needs new plugs. Call around and get some estimates.
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