2000 GMC Jimmy lousy mileage

2000 GMC JIMMY
12,000 MILES • 6 CYL • 4WD • AUTOMATIC
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DONUTMAN
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  • 2 POSTS
What constitutes a "tune-up" on ths vehicle nowadays? Mileage is lousy considering it runs smoothly and well. What components would I expect to be replaced?
Apr 27, 2010 at 3:02 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
hi,
plugs ,wires, pcv valve,fuel filter,a throttle body cleaning might be included in some cases, you will feel the difference
also do an air filter, its all easy stuff
Apr 27, 2010 at 3:51 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
https://www.2carpros.com/how_to/how_to_tune_up.htm
Apr 27, 2010 at 3:53 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
do yo have a check engine light on?
Apr 27, 2010 at 3:54 AM
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