A while back the check engine light came on. Following instructions in the
book we checked the gas cap, ect. Then ran that tank empty and filled up
with a full tank of high octane. On 1/4 tank the light went out, however
before we were getting about 320 miles to a tank of gas. Now we are lucky to
receive 180 miles from a tank and you have to hold the gas pedle to get it
to start most of the time. Not particulrly in the morning or evening. Once
it even quit while going down the road. After 4 trips to a dealership they
say that the computer says the vechicle is fine. Any suggestions????
Also there is a "clanking" noise under the vechicle about in the center. At
first it started out as a noise in the passenger front tire then it
progressed to the state it is now. It honestly sounds like something is
about to fall out from under the vechicle. It has also been to the
dealership several times for this also, with no luck. Thye say they have no
clue that it could be anything and to bring it back when it gets worse.
In need of assistance
It sounds like there may be several things going on here.
First, you should NEVER allow an EFI vehicle with a cat
converter to run out of or, even very low on gas. This
will cause a lean mixture and fry the converter. Also, you
should never need premium fuel in that vehicle - it is
designed for and will perform best on RUG. The problem you
describe sounds like either a damaged converter restricting
the exhaust or a plugged fuel filter. Either of these
should be detectable by a qualified tech. A fried converter
can rattle as you describe when it's insides melt down into
a wad of scrap metal. Your vehicle should be equipped with
OBD-II which is very sophisticated in it's diagnostic
capabilities. This, along with a dealer scanner or a good
aftermarket scanner, should be enough for a good tech to
figure it out and ID the problem.
Lastly, are you aware that many auto parts stores like
Autozone will check your vehicle for fault codes free of
charge? Those codes may be helpful to anyone here who may
have some idea of what the problem may be.
If possible, bring it to another dealership. Your guys sound like they are
even denser than my guys, and I didn't think that was possible. Sounds like
the converter is fried, big time, if that's what is making the rattling
sound. If the car is still under warranty, I might be asking to speak with a
Ford rep before the warranty runs out and they want to charge for the
Problem is that the warrenty has run oiut but it has been doing this since
before the warrenty run out and they have yet to fix it. Now they are
wanting me to pay for it, they must think I'm crazy.
The noise however does not sound like the converter. Sounds like it is in
the wheels and the tranny.
thanks so far
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