2005 Buick La Crosse Losing Milage

2005 BUICK LA CROSSE
75,500 MILES • 6 CYL • 2WD • AUTOMATIC
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SPANGMKS
  • MEMBER
  • 1 POST
How do I tune up the car? What are the gap settings? Is there a computer chip that governs gas mileage/engine performance? Should I change that chip and how much is a ball park price?
Feb 16, 2010 at 2:30 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
AS far as the tune up, there is nothing you can do to the computer. Most people replace plugs, wires, air filter (if needed) check belts, replace fuel filter...

As far as the plug gap, let me know what size engine you have.

Joe
Mar 4, 2010 at 2:45 AM
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