On Mar 11, 11:32=A0am, codifus <codi...@[EMAIL PROTECTED]
> wrote:
> On Mar 11, 4:41 am, aspasia wrote:
>
>
>
>
>
> > Anybody suggest why?
>
> > I only put about 4K on the car since I bought it 1-3/4 years ago with
> > 92K on it. =A0I mostly drive around town, but also take the freeway to
> > "blow it out".
>
> > Lately I notice the needle dropping like lead. I can't afford to go
> > anywhere, with these gas prices!
>
> > I took it back to CarMax and they did what they call a tune-up,
> > which is just replacing the spark plugs. =A0Is that a tune-up?
> > They *did* put in platinum plugs, supposedly better?
>
> > I also had them replace air filter, fuel filter and change the oil.
>
> > $$$$ and mileage is no better.
>
> > What else could be keeping mileage so low?
>
> > Tx
>
> > Aspasia
>
> Replace the coolant temp sensor. Mileage will come back after about 3
> tankfuls (computer re-adjusting to new sensor readings).
>
> CD- Hide quoted text -
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> - Show quoted text -
codifus,
I hope you're right. I bought my car ('96 SE) when it had 37K miles
and I would get about 425 miles on the trip odo. After a couple of
years, it suddenly dropped to about 375 on the trip odo. No codes,
everything runs great. I live with it. Then I had some problems with
what I found out to be the MAF, but in trying to find the problem, I
ripped out everything from the CAI all the way down to the intake
manifold and cleaned everything real good along the way (IACV, EGR
****t, etc.) and replaced all the gaskets too. Replaced the knock
sensor since I was in there too. Put everything back together and
with a brand new MAF and till this day I get about 350 on the trip
odo. So with all that cleaning, it got worst. Again, no codes,
running 92 octane, and everything runs fine. I got an O2 sensor code
a while ago for the rear and I replaced front and rear since I was at
it but no affect on the MPG. My MPG is still pretty good but to think
that it just suddenly drops like that is totally weird. I take pretty
good care of my car and keep up with all the maintenance, but my MPG
issue has been on my mind and now, 7 years later with 127K on the odo,
I can't figure it out. I'm going to buy the ECT since it's cheap and
easy to replace and we'll see. But if this works, I might have to
send you a case of beer...:) Everything I buy is only genuine Nissan
stuff I might add.
Thanks for reading.
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