I bought a used 1988 Bronco and its a v8 and i have taken it to a ford
dealership like five times cause stuff keeps going wrong with it but
they act like they have no idea whats goin on everytime an that there
is nothing wrong and then later they say oh well you have leaks and
this and that but now that i have all that fixed i still have this same
problem and they cant figure out whats wrong, you see i start it up and
its roaring its like very powerful and then all of a sudden the little
rpm gage starts goin down untl its below one and it seems like it wants
to shoot back up to two rpm or three but it just goes back down again
like its haveing a battle with itself and then once i start driving it
when i get to a red light or something and its idle it starts making a
weird humming/ whirling noise and its not good, but the ford dealership
doesnt seem to have a cllue. what could it be