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I just had the the 3rd timing belt replacement on my 94 Accord LX and
noticed about 10-15 % lower gas milage after it though the car runs smooth. I estimated this by noticing how many miles I could drive from a full tank till the guage touches the Empty mark. It used to be around 330 miles, now it's around 290. First I thought this might be due to perhaps a different, less efficient gasoline mix they are selling during the winter season in my state, but when I heard a Accord Ex owner on a local auto show calling in with virtually the identical issue (lower milage after a timing belt change) I started wondering if this is something more common. I's strange because, if anything, I would expect a better milage after such a major maintenance that includes a tune-up as well. The radio show host did not really have a good answer and I wonder if any of you have heard about this issue before. KJ |
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"K J" <kj@killjoy.invalid> wrote in news:gg9n00$e1k$1@news.motzarella.org:
> I just had the the 3rd timing belt replacement on my 94 Accord LX and > noticed about 10-15 % lower gas milage after it though the car runs > smooth. I estimated this by noticing how many miles I could drive from a > full tank till the guage touches the Empty mark. It used to be around > 330 miles, now it's around 290. > > First I thought this might be due to perhaps a different, less efficient > gasoline mix they are selling during the winter season in my state, but > when I heard a Accord Ex owner on a local auto show calling in with > virtually the identical issue (lower milage after a timing belt change) > I started wondering if this is something more common. I's strange > because, if anything, I would expect a better milage after such a major > maintenance that includes a tune-up as well. The radio show host did not > really have a good answer and I wonder if any of you have heard about > this issue before. > > > The only way this could happen is if a mistake was made. Either something's not been reconnected properly, or the belt is off by a tooth. I vote for the second reason. Go back and get the garage to check the alignment again. -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
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"Tegger" <invalid@invalid.inv> wrote:
> The only way this could happen is if a mistake was made. > > Either something's not been reconnected properly, or the belt is off > by a > tooth. I vote for the second reason. Go back and get the garage to > check > the alignment again. Oh, not that! It would be a big job. What if the tune-up was not done right? Couldn't that also cause such a drop in milage? KJ |
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K J wrote:
> "Tegger" <invalid@invalid.inv> wrote: >> The only way this could happen is if a mistake was made. >> >> Either something's not been reconnected properly, or the belt is off by a >> tooth. I vote for the second reason. Go back and get the garage to check >> the alignment again. > > Oh, not that! It would be a big job. What if the tune-up was not done > right? Couldn't that also cause such a drop in milage? > "tune up"? with computerized ignition and injection, it's not like you're going to minutely adjust the dwell or the mixture here dude. the only reason you get big disparities is because of big screw-ups. i'm with tegger - check the cam timing. |
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"K J" <kj@killjoy.invalid> wrote in news:ggah39$t8k$1@news.motzarella.org:
> "Tegger" <invalid@invalid.inv> wrote: >> The only way this could happen is if a mistake was made. >> >> Either something's not been reconnected properly, or the belt is off >> by a >> tooth. I vote for the second reason. Go back and get the garage to >> check >> the alignment again. > > Oh, not that! It would be a big job. Sure would! And that's the garage's problem, not yours. They have an obligation to perform the servicing correctly, and to fix it if it wasn't. > What if the tune-up was not done > right? Couldn't that also cause such a drop in milage? That's what I meant by something "not reconnected properly". Suppose they damaged a sensor or something? Or hooked up a vacuum line in the wrong place? Besides investigating the strong possibility the belt alignment is off, they need to do a thorough check to make sure no other mistakes were made. -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
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Thus spake "K J" <kj@killjoy.invalid> :
>I just had the the 3rd timing belt replacement on my 94 Accord LX and >noticed about 10-15 % lower gas milage after it though the car runs >smooth. I estimated this by noticing how many miles I could drive from a >full tank till the guage touches the Empty mark. It used to be around >330 miles, now it's around 290. Don't guess, measure. How many miles do you go between fill ups and how many gallons does one take? Do this over several tanks. > >First I thought this might be due to perhaps a different, less efficient >gasoline mix they are selling during the winter season in my state, but >when I heard a Accord Ex owner on a local auto show calling in with >virtually the identical issue (lower milage after a timing belt change) >I started wondering if this is something more common. I's strange >because, if anything, I would expect a better milage after such a major >maintenance that includes a tune-up as well. The radio show host did not >really have a good answer and I wonder if any of you have heard about >this issue before. > >KJ |
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An other than competent mechanic could easily put the timing belt on
one-tooth off. Have a talk with the manager/owner. What exactly was done with the tuneup? Changed spark plugs? Valve adjustment? On Nov 22, 11:35*am, "K J" <k...@killjoy.invalid> wrote: > I just had the the 3rd timing belt replacement on my 94 Accord LX and > noticed about 10-15 % lower gas milage after it though the car runs > smooth. I estimated this by noticing how many miles I could drive from a > full tank till the guage touches the Empty mark. It used to be around > 330 miles, now it's around 290. > > First I thought this might be due to perhaps a different, less efficient > gasoline mix they are selling during the winter season in my state, but > when I heard a Accord Ex owner on a local auto show calling in with > virtually the identical issue (lower milage after a timing belt change) > I started wondering if this is something more common. I's strange > because, if anything, I would expect a better milage after such a major > maintenance that includes a tune-up as well. The radio show host did not > really have a good answer and I wonder if any of you have heard about > this issue before. > > KJ |
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On Sun, 23 Nov 2008 12:54:52 -0600, Dillon Pyron wrote:
> Thus spake "K J" <kj@killjoy.invalid> : > >>I just had the the 3rd timing belt replacement on my 94 Accord LX and >>noticed about 10-15 % lower gas milage after it though the car runs >>smooth. I estimated this by noticing how many miles I could drive from a >>full tank till the guage touches the Empty mark. It used to be around >>330 miles, now it's around 290. > > Don't guess, measure. How many miles do you go between fill ups and how > many gallons does one take? Do this over several tanks. > > >>First I thought this might be due to perhaps a different, less efficient >>gasoline mix they are selling during the winter season in my state, but >>when I heard a Accord Ex owner on a local auto show calling in with >>virtually the identical issue (lower milage after a timing belt change) >>I started wondering if this is something more common. I's strange >>because, if anything, I would expect a better milage after such a major >>maintenance that includes a tune-up as well. The radio show host did not >>really have a good answer and I wonder if any of you have heard about >>this issue before. >> >>KJ you think driving a thousand miles on a mis-timed cam is a good idea? |
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"Dillon Pyron" <invaliddmpyron@austin.rr.com> wrote:
> Don't guess, measure. How many miles do you go between fill ups and > how many gallons does one take? Do this over several tanks. That's my intention. I only drove 2-3 tanks of gas since the timing belt change and figured the fewer miles driven per tank was due to colder weather till I heard that other guy call in the car talk show with similar observation. Now I am getting concerned. But because the engine otherwise seems to run smoothly and without loss of power, I figure I can afford to drive a couple more tankful before I talk to the shop again so I don't look like a fool in case I am wrong. KJ |
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<johngdole@hotmail.com> wrote:
> An other than competent mechanic could easily put the timing belt on > one-tooth off. Have a talk with the manager/owner. What exactly was > done with the tuneup? Changed spark plugs? Valve adjustment? Both. KJ |
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