BAD MISS

[allena]

I recently had a bad miss in my 02 Forester 2.5. I first thought maybe
a fuel filter or water. I replaced fuel filter, air filter, plugs and
a couple bottles of dry gas. Check engine light went out and ran fine
for 2 days about 500 miles. Now it acts the same won`t pick up under
load for a few seconds then takes off. It only does this occasionally
and acts like possible fuel problem. Also no check engine light on. 1
sensor on throttle body adjusts idle and another round shaped sensor
in front. Help??

 

[Todd H.]

I recently had a bad miss in my 02 Forester 2.5. I first thought maybe
a fuel filter or water. I replaced fuel filter, air filter, plugs and
a couple bottles of dry gas. Check engine light went out and ran fine
for 2 days about 500 miles. Now it acts the same won`t pick up under
load for a few seconds then takes off. It only does this occasionally
and acts like possible fuel problem. Also no check engine light on. 1
sensor on throttle body adjusts idle and another round shaped sensor
in front. Help??

Any CEL codes to help, or are you saying your check engine light came
on and the code indicated a miss?

Plug wires might be a next step to try.

 

[fish6525]

Yea, agree new plug wires may solve the problem.

Also, if you got some bad gas containing water, it may take more then 2
cans of dry gas. Suggesting adding some more, one can per tank full for
two or three tanks of gas.

 

[Oscar_Lives]

I recently had a bad miss in my 02 Forester 2.5. I first thought maybe
a fuel filter or water. I replaced fuel filter, air filter, plugs and
a couple bottles of dry gas. Check engine light went out and ran fine
for 2 days about 500 miles. Now it acts the same won`t pick up under
load for a few seconds then takes off. It only does this occasionally
and acts like possible fuel problem. Also no check engine light on. 1
sensor on throttle body adjusts idle and another round shaped sensor
in front. Help??

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What is a good miss?

 

[BD]

What is a good miss?

Mary Poppins?

 

[Todd H.]

Mary Poppins?

The Swiss Miss?

 

[allena]

After posting yesterday the car ran excellant and engine light came
back on. The mis is more evident at low speed and I don`t have acess
to a code reader. I`ll try the wires and more dry gas. The car has
around 166,000 and I guess wires may be breaking down when warm,
doesn`t miss when engine is cold.

 

[Carl 1 Lucky Texan]

After posting yesterday the car ran excellant and engine light came
back on. The mis is more evident at low speed and I don`t have acess
to a code reader. I`ll try the wires and more dry gas. The car has
around 166,000 and I guess wires may be breaking down when warm,
doesn`t miss when engine is cold.

The Swiss Miss?

--

If you are near an Autozone or similar shop they will often read codes
for you. Or an independent mechanic might for a 5-10 tip.

I dunno


Carl

 

[Edward Hayes]

When replacing the ignition wires be sure clean the socket where the
wire plugs into to ignition coil. Often times I have read on Suby news
groups that corrosion at this connection will cause intermittent miss
firing. Do use OEM wires if you can as they are top-grade at a
reasonable price. Ed

 

[allena]

Back again. After all this time and lots of money, it`s the converter.
Any Idea of how to clean out the converters on this Forester? It comes
off the Y pipe to the 1st converter then a section of pipe and the 2nd
one. This is a 2002 with 172,000 K and can`t find a used one. Subaru
says 800 for a new 1. There are no emission tests in my state so I can
work with the old one

 

[strchild]

Well, if you were in Oregon, I would say the reason you can't find a used
convertor is as I was told, not legal to sell used ones. However, I have
had a convertor rebuilt before which was not a penny cheaper than just
ordering one. Can't really say for other states, but this was before Oregon
and several of the northwest region here adopted the California emissions
regulations, so it may just be the same way in other states now too.

If it were me, I would take the convertors off, dump out any debris to see
what comes out. My convertors were both broken into pieces by the time I
had them redone, and the theory is, the clogged convertors caused too much
backpressure in the poor little motor, and although I never did post mortem,
a cylinder lost all but 15lbs of pressure maybe due to a burnt valve. Could
be either way though, the valve could have burnt, causing the convertors to
run too hot, thus failing, but whatever happened, it was neither nice, nor
cheap.

Otherwise, I dunno if it's possible to clean convertors that are otherwise
intact. I know some folks just kinda, hammer them out and then dispose of
the broken bits in the trash then reinstall the hollowed out exhaust piping
back. Sucks for the environment though, so I would rather that not happen.
Anybody know if the loss in backpressure from doing this affects the motor
adversely?

~Brian

 

[Ja]

Back again. After all this time and lots of money, it`s the converter.
Any Idea of how to clean out the converters on this Forester? It comes
off the Y pipe to the 1st converter then a section of pipe and the 2nd
one. This is a 2002 with 172,000 K and can`t find a used one. Subaru
says 800 for a new 1. There are no emission tests in my state so I can
work with the old one .

I've rodded out plugged converters with a length of rerod and dumped
out the spoils. The length of pipe and resulting friction on the inside
walls of the pipe ( "C" value in engineering terms ) seems to maintain
adequate backpressure that there is no detriment to engine performance.
Your minimal negative contribution to the environment is like a fart in
the wind when compared to the contribution that the Bush's
administration has allowed his industry cronies.

Ja

 

[Oscar_Lives]

I've rodded out plugged converters with a length of rerod and dumped
out the spoils. The length of pipe and resulting friction on the inside
walls of the pipe ( "C" value in engineering terms ) seems to maintain
adequate backpressure that there is no detriment to engine performance.
Your minimal negative contribution to the environment is like a fart in
the wind when compared to the contribution that the Bush's
administration has allowed his industry cronies.

Ja

Amen. They have never proven that Global Warming crap, anyway.

Let Al Gore deal with it...

 

[strchild]

I agree about the global warming, which seems more fad than science, but I
really have no basis to say anything about the long term sustainability of
releasing unhealthy things from our cars into the atmosphere.

Try telling Siberians you would like the weather to cool off a tad. (-;

~Brian

 

[S.Lewis]

I agree about the global warming, which seems more fad than science, but I
really have no basis to say anything about the long term sustainability of
releasing unhealthy things from our cars into the atmosphere.

Try telling Siberians you would like the weather to cool off a tad. (-;

~Brian

We're just on this planet for the ride. It's a lot bigger, stronger, and
more complex than we realize. I'm not sure that volcanoes,
lightning-initiated forest blazes and other natural occurances can be fitted
with a catalytic converter.

That said, nothing wrong with burning fuel cleaner and more efficiently
within reason and having the freedom to choose to do just that.


Stew

 

[Todd H.]

I agree about the global warming, which seems more fad than science

If you haven't gotten the memo recently, anyone still thinking like
this now that nearly the entire scientific community is in agreement
on global warming is making like an ostrich and choosing to be an
uninformed idiot.

"Let Al Gore deal with it" is an equally assinine way to think about
this too. That's just laziness. The title of his film really says it
all "An Inconvenient Truth." The truth of the situation is no longer
subject to debate. Hell, just a few days ago we saw this happen:
http://www.nytimes.com/2006/12/30/s...&en=eb5d838b27550ca9&ei=5094&partner=homepage

If serious steps aren't taken, serious shit can and will keep
happening to the planet. It's not Chicken Little rantings anymore.

To the OP, please consider getting the catalytic converter fixed even
if the state isn't holding licensure against you. Should the state
have to mandate doing the right thing to people?

Hell, personally I feel bad about having a car that has all emission
systems in working order, yet only gets 25mpg on average when I don't
need AWD 9 months out of the year.

Best Regards,

 

[Bonehenge]

If you haven't gotten the memo recently, anyone still thinking like
this now that nearly the entire scientific community is in agreement
on global warming is making like an ostrich and choosing to be an
uninformed idiot.

I've noticed this myself. Lots of changed minds.

 

[Bonehenge]

We're just on this planet for the ride.

Maybe the planet isn't built for some of the pressures advancing
humans are putting on it? The planet will survive, but can we?

I'm all for advancement, and don't think we should be walking
everywhere. <G> However, I also think we should be a lot more
respectful of our environment with some very simple, easy to
implement, common sense changes.

As I drive through my 'hood on garbage day, I'm still blown away by
how many people don't recycle at all, how much trash a family can
generate, and that four mothers who live next door to each other will
ALL individually drive less than a mile to pick up four individual
kids from school, in four vehicles that could easily transport all
four kids, and leave them idling side by side as they wait for the
kids.

I just think we all need to use a bit more common sense.

 

[strchild]

Yes, but what truly do the scientists who "know", know? How much of the
planet's oxygen really comes from the rain forests in the Amazon we're told
to protect "or else"! How many millions of years do scientists tell you it
takes for mountains to form, yet, look at the semi-recent activity on Mt.
St. Helens in Washington state. How old is this ball of mass we find
ourselves floating around the sun on - somehow the exact number of years
escapes me, as nobody scientific can seem to form a solid number yet. While
if only to myself it may "seem" that global warming is more fad than
science, that's merely my own opinion. For what it's worth, I don't
remember there to being any more than theories concerning global warming,
making them conjecture, the opinions of some in a scientific community. But
before you think me boorish, I also prefer that folks be good custodians of
the environment around them, but it isn't up to me to enforce such things as
these. Err on the safe side and take care of things you don't know the
outcome your influence will have, but all within reason. (-;

Why are catalytic convertors so expensive? Is it the platinum in them? If
it were a manufacturing thing, seems cost could reduce in some way
proportionate to demand, shouldn't it? Why can't used convertors go through
a test and be recertified for so many more miles? Somehow I don't think
this is all about the environment.

~Brian

 

[Bert_Russell]

... How old is this ball of mass we find
ourselves floating around the sun on - somehow the exact number of years
escapes me, as nobody scientific can seem to form a solid number yet.

~4.55e9 years +/- a bit.

... For what it's worth, I don't
remember there to being any more than theories concerning global warming,
making them conjecture, the opinions of some in a scientific community.

You seem to share a common misunderstanding of what a
scientific theory is. It is not just a guess or speculation
but rather a self consistent explanation of the mechanisms
behind observable events or facts. It has predictive value
and is capable of being tested or falsified through observation.

Bert