Ecoboost High Speed Shudder + Check engine light blinking. Help!
#166
I bought a 2011 f 150 with the 3.5L ECOBOOST with 75,000 miles 2 months ago. It has the shudder under moderate to hard acceleration with the blinking engine light. I drilled the 1/16th inch hole like everyone says to do, had a little water come out, and it has not done anything to fix the problem.