Question about 2003 Volkswagen Jetta TDI

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My 2003 jetta gls 1.8 runs rough and little power and the service engine light comes on when accelerating.After a steady speed is maintained it runs smoother.At idle the engine light goes off and is smooth.The guy at advance Auto said A plug was fouled.Should I get a tune up ? How much should that cost if I get it done?

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Yeah you should since a tune up is required every 30,000 miles.

Posted on Nov 14, 2009

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