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When is it necessary to do a tune up of spark plugs and wires on my truck? Does it have to reach certain miles? The millage that it has right now is 71,000 the year of my truck is 2005,I did not buy it brand new I bought my truck with 32,000 miles on it on 2007.

Answers from the Automotive Experts

Amanda J. Pierce, MBA Cris, You should have a manual with your vehicle that gives you suggestive maintenance intervals. You should be able to contact your local dealership as well where they can give you this information from the manufacturer for free.

Barb Petrey, President - DBK Enterprises Inc at Jiffy Lube Refer to your owner's manual or speak to a mechanic you trust

Bogi Lateiner, Owner and Technician at 180 Degrees Automotive Hi Cris - Spark plugs are not recommended until 90,000 miles on your vehicle. It doesn't hurt anything to change them sooner than that, however it is likely not necessary unless you are experiencing some rough running or a check engine light that relates to the ignition system. Hope that helps! Bogi Lateiner 180 Degrees Automotive http://www.180auto.com/

Laurie Sarno, Co-Owner at Super Girls Auto Most vehicles built after 1990 have a spark plug replacement interval of 100,000 miles on average, but the only sure way to know is to check your owners manual for recommended service intervals. Should you not have one'any Chrysler/Dodge/Jeep dealer service department will be able to give you a definite answer. If you are experiencing a rough running engine or obvious misfire, immediate attention to the ignition system is indicated. Hope this helps'Super Girls Auto

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