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Old 04-17-2006, 09:59 PM   #1 (permalink)
wlud
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catalytic converter problem?

Any opinions on this diagnosis?

94 toyota p/u 4x4 114K miles. Head was just replaced due to corrosion
of the coolant lines. Truck was running fine up until about 2 weeks
before. After replacing the head, the truck idles high and skips at
running speed.
I took it to a local mechanic for diagnosis but he couldn't ID it.
No check engine light. No trouble codes in the computer.

So I took it to a Toyota dealer who also agrees something is wrong.
Their diagnosis is that the catalytic converter is bad.

Does this make any sense?

They have had the truck 2 weeks, and they seem very busy.
I am suspicious for 2 reasons: 1-the truck was running fine before the
head problem, so why would the catalytic converter fail now? and 2-they
told me that "one of the catalytic converters is bad." I'm pretty sure
I have just one catalytic converter. Maybe the guy mispoke and it's an
oxygen sensor?
Anyone got any advice besides "don't go to a dealer?"

Thanks,
Will

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Old 04-18-2006, 08:32 AM   #2 (permalink)
Q
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Re: catalytic converter problem?

Whatever it is, please post a follow-up on what the actual problem was
after it is fixed.

Q

wlud wrote:[color=blue]
> Any opinions on this diagnosis?
>
> 94 toyota p/u 4x4 114K miles. Head was just replaced due to corrosion
> of the coolant lines. Truck was running fine up until about 2 weeks
> before. After replacing the head, the truck idles high and skips at
> running speed.
> I took it to a local mechanic for diagnosis but he couldn't ID it.
> No check engine light. No trouble codes in the computer.
>
> So I took it to a Toyota dealer who also agrees something is wrong.
> Their diagnosis is that the catalytic converter is bad.
>
> Does this make any sense?
>
> They have had the truck 2 weeks, and they seem very busy.
> I am suspicious for 2 reasons: 1-the truck was running fine before the
> head problem, so why would the catalytic converter fail now? and 2-they
> told me that "one of the catalytic converters is bad." I'm pretty sure
> I have just one catalytic converter. Maybe the guy mispoke and it's an
> oxygen sensor?
> Anyone got any advice besides "don't go to a dealer?"
>
> Thanks,
> Will
>[/color]
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