Re: 1989 F250 buzzes when I try to start it
"chipnskye" <email@example.com> wrote in message
> My (recently purchased) 1989 F250 Diesel frequently "buzzes" when I try
> to start it. Sometimes it just turns over and fires up as normal, but
> at other times it makes this loud buzzing noise over and over again
> without starting up.
> If I keep turning the key, it seems, sooner or later it will stop the
> noise and start the engine. But it seems to be a random thing. Could
> be the third try - or the hundredth.
> Does the starter/solenoid need to be changed out? Where is that
> located in the engine compartment? How tough is it to do-it-yourself?
Is the buzzing temperature related? The engine may be trying to tell you
that it has not warmed up yet.
Most diesel engines have some kind of pre-heating for the cylinders to bring
them up to temperature where the diesel fuel will ignite. If the outside
temperature is cold, the cylinders need to pre-heat for a minute or so,
depending on how cold it is. If it's warm outside, the pre-heating can be
It's possible that the buzzer is telling you that pre-heating is still going
on and don't try to start the engine until the buzzing has stopped.
Just a thought, not necessarily the solution.