I have a 2001 ford focus. the car had a miss for 2 to 3 weeks.the more fuel applied or the steeper the hill, the miss got worse. Changed plugs and plug wires (no help)............
at slow speed such as shopping center car ran well.
last week I was driving through a shopping center, stopped at a.t.m. car started as if it was hitting on 2 cylinders.
it would die but start again.. Finally at approx. 5-6 mph.
got on 4 lane road could only get up to a speed of 30 to 35 m.p.h. used 1/2 tank gas in about 5 miles. miss was wery bad
from a.t.m. to home.
THANKS FOR ANY HELP