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DMF
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 Posted: Thu Jul 10, 2008 4:07 am Post subject: 2006 Taurus Engine problems no Trouble Light or Codes |
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All,
I have a 2006 Taurus with the 3.0L V6 Engine, autotrans.
Lately (past few months) the gas mileage has dropped from
about ~300 mi per tank to about ~200 mi per tank (it works
out to be around 20mpg down to 13mpg) with no change in
terrain, load or driving habits (just me). Also, the idle is uneven,
not rough but surges up and down erratically. Occasionally I
smell raw gas on hot start but that is not reproducable. Anyway,
I took it in to Ford today to get the AC Fan fixed under warranty
and ask that they check the engine.
They fixed the fan, road tested and checked the computer for
trouble codes (none found), found no TSBs on this issue and
patted me on the head and told me the uneven idle is normal
when the AC kicks on and off. The fact that it does it even
when the AC is not cycling did not sway them. (You can hear
the compressor kick in so its pretty obvious when that happens).
They ended with logical fallacy that "there is nothing wrong with
your engine since the Check Engine light is not on" and left it at
that.
I am happy to report that they atleast did not charge me for the
engine diagnostic but I am somewhat disappointed in the passive
attitude that nothing is wrong when clearly something is wrong.
Any helpful hints here? Do I just wait (wasting gas and $$, all
the while) until the computer finally thows a code? Anyone else
experience something similar or might know of a failing component
that would cause these symptoms without generating a code?
TIA
Regards,
David |
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Arnie Quarry
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| Posted: Sun Jul 13, 2008 10:42 am Post subject: Re: 2006 Taurus Engine problems no Trouble Light or Codes |
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since the diagnostic found nothing wrong, you need to replace your ECM and
the oil pump to get the gas mileage back up to 20 again.
"DMF" <me@sans.spam.com> wrote in message
news:4875441d$0$28639$c3e8da3@news.astraweb.com...
| Quote: |
All,
I have a 2006 Taurus with the 3.0L V6 Engine, autotrans.
Lately (past few months) the gas mileage has dropped from
about ~300 mi per tank to about ~200 mi per tank (it works
out to be around 20mpg down to 13mpg) with no change in
terrain, load or driving habits (just me). Also, the idle is uneven,
not rough but surges up and down erratically. Occasionally I
smell raw gas on hot start but that is not reproducable. Anyway,
I took it in to Ford today to get the AC Fan fixed under warranty
and ask that they check the engine.
They fixed the fan, road tested and checked the computer for
trouble codes (none found), found no TSBs on this issue and
patted me on the head and told me the uneven idle is normal
when the AC kicks on and off. The fact that it does it even
when the AC is not cycling did not sway them. (You can hear
the compressor kick in so its pretty obvious when that happens).
They ended with logical fallacy that "there is nothing wrong with
your engine since the Check Engine light is not on" and left it at
that.
I am happy to report that they atleast did not charge me for the
engine diagnostic but I am somewhat disappointed in the passive
attitude that nothing is wrong when clearly something is wrong.
Any helpful hints here? Do I just wait (wasting gas and $$, all
the while) until the computer finally thows a code? Anyone else
experience something similar or might know of a failing component
that would cause these symptoms without generating a code?
TIA
Regards,
David
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SC Tom
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| Posted: Sun Jul 13, 2008 5:21 pm Post subject: Re: 2006 Taurus Engine problems no Trouble Light or Codes |
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"Arnie Quarry" <chevytough@msn.spam.com> wrote in message
news:-uydnUKbrr-Q9uTVnZ2dnUVZ_j-dnZ2d@bright.net...
| Quote: |
since the diagnostic found nothing wrong, you need to replace your ECM and
the oil pump to get the gas mileage back up to 20 again.
Why the oil pump? Oh wait; Chevytough, MSN, spam. . . never mind. I forgot |
that's how chevy's are fixed- throw out all known good parts, then sell the
POS.
SC Tom |
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bob urz
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| Posted: Sun Jul 13, 2008 9:54 pm Post subject: Re: 2006 Taurus Engine problems no Trouble Light or Codes |
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Arnie Quarry wrote:
| Quote: |
since the diagnostic found nothing wrong, you need to replace your ECM and
the oil pump to get the gas mileage back up to 20 again.
|
What does the ECM and oil pump have to do with it?
If you smell gas, your probably got a leak. You need to localize the
smell to under the hood or the rear by the gas tank.
You could have a leaking fuel injector that bleeds down into a cylinder
when the car is not running. You should be able to attach a fuel
pressure gage to the fuel rail and see how fast the pressure bleeds
down.
I would at a minimum run some fuel injection cleaner through the gas,
maybe take it to a shop and have the good techron clean or such.
have the fuel filter replaced. maybe have the gas tank inspected to
make sure your filler neck is not leaking or such.
Also, make sure you don't have something like a stuck emergency brake
or caliper haning up.
bob
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DMF
Guest
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| Posted: Mon Jul 14, 2008 9:44 am Post subject: Re: 2006 Taurus Engine problems no Trouble Light or Codes |
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"bob urz" wrote in message
| Quote: |
Arnie Quarry wrote:
since the diagnostic found nothing wrong, you need
to replace your ECM and the oil pump to get the gas
mileage back up to 20 again.
What does the ECM and oil pump have to do with it?
|
I think Arnie is a troll.
| Quote: |
If you smell gas, your probably got a leak. You need to
localize the smell to under the hood or the rear by the
gas tank.
|
Actually, its more like a puff of raw gas smell on hot
start. Doesn't happen every time.
| Quote: |
You could have a leaking fuel injector that bleeds down
into a cylinder when the car is not running. You should be
able to attach a fuel pressure gage to the fuel rail and see
how fast the pressure bleeds down.
|
That makes sense if a leaking fuel injector would not cause
a failure code. Could it also be the source of gas smell on
hot start?
| Quote: |
I would at a minimum run some fuel injection cleaner
through the gas, maybe take it to a shop and have the
good techron clean or such.
|
That is a good idea. I'll talk to my independent (non-Ford)
mechanice about that. As mentioned in my original post
Ford has no interest in troubleshooting this until the check
engine light is on.
| Quote: |
have the fuel filter replaced. maybe have the gas tank
inspected to make sure your filler neck is not leaking
or such. Also, make sure you don't have something like
a stuck emergency brake or caliper haning up.
|
Gas smell is definitely coming from engine area. Brakes
seem okay and were recently inspected.
Thanks for your reply Bob.
Regards,
David |
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