I'm still getting 9.6 miles to the gallon around the clock. I was stold
that I should be getting between 11-15.
1.Replaced plugs and wires with factory parts.
2.Put in a new air filter
3.Changed oil to 5W-30 Synthetic
Will a tune-up at a shop still help even though I already replaced the plugs
Will changing the Oxygen sensors actually help? (Expensive) I also tried
before on a 1994 Z-71 and saw no difference.
I unplugged the MAP sensor with the truck running and the truck ran real bad
and when I plugged it back in, the truck ran fine. Could I still need a new
What should my next step be? I really like the truck.