What should I be looking for when I go to my mechanic?   My engine check
light came on my Ford Explorer 1994 XLT 4.0 Litre... My car starts up fine,
but when I begin to drive it, it stutters around the 5-10 km mark, but there
after seems to drive fine, with the stutter (although minor) disappearing...
the engine check light comes, when I actually begin to drive it out of
reverse. Ive also noticed that there some sort of a faint humming noise
coming from the bottom of my truck (might be my muffler) at these low
speeds, the noise sounds as if something is vibrating, but not too sure what
that might be related to... I just had a transmission rebuild, and had to
replace my radiator recently also....Ive kept the truck in immaculate
condition and drive it like a baby... has 180 000 kms to date....

Need advice and opinions to this matter

Much appreciated...

Jk