2003 chevy silverado 4x4, 2500 series 158,000 miles
Well taken care of, gets all scheduled maintenance, tuneups, flushes, etc etc
I drive it about 18,000 per year, and it is heavily loaded- a veterinary unit is on the back.
regular gas mileage is about 14, now about 10.
Check engine light started blinking about 1 mo ago. Computer said it was misfiring. It got a tuneup/plugs/wires/air filter/fuel filter. No change.
Tried repalcing 2 sticky fuel injectors, fuel injector flush, no change.
The blinking light is on from the time the car turns on until I turn shut it off.
Any ideas what to check next?
Saturday, December 11th, 2010 AT 4:31 PM