catalytic converter

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newman - 26 Jun 2007 01:19 GMT

What is the life expectancy of a catalytic converter?

My 99 Accord has 110K and check engine has code P0420 indicating converter
failure-at least that's what Honda dealer said.

99 accord 4 cyl
110000 miles

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Woody - 26 Jun 2007 03:06 GMT

> What is the life expectancy of a catalytic converter?
>
[quoted text clipped - 3 lines]
> 99 accord 4 cyl
> 110000 miles

Before having the converter changed you should read this article
http://www.troublecodes.net/articles/catfailure/
Also you should look at the EGR. Find a good local mechanic and have him
check it out. Dealers will just throw a $1000 converter in without checking
to make sure it is the converter. Also if you have been running with a
problem causing a rich mixture it will destroy the converter over time so
everything needs checked out or you could destroy the new converter.

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z - 26 Jun 2007 19:38 GMT

> > What is the life expectancy of a catalytic converter?
>
[quoted text clipped - 10 lines]
> problem causing a rich mixture it will destroy the converter over time so
> everything needs checked out or you could destroy the new converter.

Happened to me. Failed emissions. Reasonably competent mechanic
assured me it was the converter, no doubt. Told me afterwards the old
one was totally shot. Got the exact same failing score on emissions.
But the $$$ for replacing it got me an emissions waiver.

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newman - 26 Jun 2007 20:55 GMT

I should mention that Honda dealer replaced timing belt (& water pump,
seals,etc.) recently.

Could the timing belt replacement have anything to do with check engine
light with code P0420? The light came on about 1 week after timing belt
replacement.

I checked for loose vacuum hoses, but didn't see anything.
On Jun 25, 10:06 pm, "Woody" <TheD...@pond.net> wrote:

> "newman" <st74du...@verizon.net> wrote in message
>
[quoted text clipped - 17 lines]
> problem causing a rich mixture it will destroy the converter over time so
> everything needs checked out or you could destroy the new converter.

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motsco_ - 27 Jun 2007 00:28 GMT

> I should mention that Honda dealer replaced timing belt (& water pump,
> seals,etc.) recently.
[quoted text clipped - 4 lines]
>
> I checked for loose vacuum hoses, but didn't see anything.

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If the car is acting a bit gutless until it warms up, or hesitates when
it never used to, the answer could be YES. Did they leave your rad full,
and the coolant reservoir filled to the =MAX= mark, like it says in the
(owner's) manual, or is there just a few drops in the bottom ?

'Curly'

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