Please help to resolve the issue. I am fedup with my grand marquis
Grand Marquis 2004
The car shakes while idle and missing when driving and
crossing 50 mph speed on low accelerator. I have spend a
lot of money and still nothing works. Initially i was asked to
replace the fuel injector. Done that
Asked to replace the spark plug. Done that
Asked to replace fuel filter. Done that
Lastly i was asked to replace the fuel pump and i have
replace the fuel pump but still today i am standing where i
was standing first day.
One thing i must mention that when i am filling my tank
with fuel cleaner, the car works fine for a day or two and
than same again. While driving car missfire when crossing
50 miles on low accelerator only as soon as i press the
accelarator, the car drove fine.
Recently i did the computer and found that Oxygen sensor
bank 2 sensor 1 is not working. I am sure this is not
causing the issue because this stops working recently
while the issue i am facing is way long before the oxygen
sensor stop working.
Please help me out as i am really frustrated and i have
googled many forums but did not get proper answer.