98 Camry Charcoal canister replacement

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Old 15 Nov 2006, 04:22 pm   #1 (permalink)
jeff deane
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Default 98 Camry Charcoal canister replacement

Anyone done this. Dealer is telling me it needs one (it has 280,000 miles
on it) and I have located a used one. I just need to know if anything else
ought to be replaced at the same time. I also understand that the canister
is behind the muffler in the rear. I'd appreciate any insight you might
have on this.

Jeff D.


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Old 15 Nov 2006, 04:34 pm   #2 (permalink)
m Ransley
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Default Re: 98 Camry Charcoal canister replacement

Why does it "have to" be replaced, is it rusted out? If it seals its ok.

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Old 16 Nov 2006, 10:02 am   #3 (permalink)
Daniel
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Default Re: 98 Camry Charcoal canister replacement

jeff deane wrote:
> Anyone done this. Dealer is telling me it needs one (it has 280,000 miles
> on it) and I have located a used one. I just need to know if anything else
> ought to be replaced at the same time. I also understand that the canister
> is behind the muffler in the rear. I'd appreciate any insight you might
> have on this.
>
> Jeff D.

=======================
I don't claim to be an expert on this but here's my experience.
Troubleshooting a problem on my 1977 Toyota truck I once replaced the
charcoal canister with used. Made no difference whatsoever.
Reading the Factory Service Manual for the Camry, I discovered a test
procedure for the charcoal canister in the Maintenance section that
involved seeing if air would pass in one direction but not the other.
My canister with around 150,000 miles, failed the test so I ordered a
new one from the dealer and paid something like over $200.
When I removed the new unit from the box, a plastic flange on the
bottom was broken, but before returning the damaged new part to the
dealer for a refund, I performed the same diagnostic check on the brand
new unit and it passed or restricted air flow exactly like my existing
charcoal canister so I did not replace it.
The charcoal canister simply collects fumes from evaporated fuel in the
tank so the odor of "unburned hydrocarbons" is not released into the
atmosphere. The canister should be behind the battery, under the hood,
near the driver side tire (US LH steering). There is no charcoal
canister near the muffler. If you needed to replace some other part it
might be the vacuum switching valve which routes fumes back into the
intake manifold.
I'd be getting a second opinion. It is possible the filtering material
has settled and is blocking flow, so then you would have more vapor
pressure in the fuel tank. I'm not sure why that is such a problem. The
fuel cap already warns you to remove slowly. Apparently they recognize
even with the properly functioning charcoal canister some residual
pressure remains.

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Old 19 Nov 2006, 12:34 am   #4 (permalink)
johngdole@hotmail.com
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Default Re: 98 Camry Charcoal canister replacement

You just have to make sure you do need a new canister and that the
service writer didn't need more money in his pocket as he gets a cut of
the profit. Is the check engine light on? If so go to AutoZone to have
it read for free and let us know.

The 97+ generation has problems with bad canisters that disintegrate
inside and send carbon dust to plug up a lot of things. But otherwise
it may just be a stuck evap vacuum switching valve (VSV) on the air
filter housing.

If it's the VSV, you can clean it by prying it open carefully without
breaking the plastic port. Clean and lightly lube it. If you see carbon
particles on the diaphragm spring inside then the canister is probably
shot.


jeff deane wrote:
> Anyone done this. Dealer is telling me it needs one (it has 280,000 miles
> on it) and I have located a used one. I just need to know if anything else
> ought to be replaced at the same time. I also understand that the canister
> is behind the muffler in the rear. I'd appreciate any insight you might
> have on this.
>
> Jeff D.


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Old 24 Nov 2006, 12:53 am   #5 (permalink)
jeff deane
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Default Re: 98 Camry Charcoal canister replacement

Well it is throwing 2 codes.....P0441 (Evap incorrect purge flow) and P0446
(Evap control circuit). Does that help narrow it down to Canister or purge
valve assembly?

Another poster said the Canister was in the engine compartment, but the
dealer is telling me it is in the rear near the gas tank. Anyone have the
service manual for download?

Jeff

<johngdole@hotmail.com> wrote in message
news:1163918069.461965.189940@k70g2000cwa.googlegr oups.com...
> You just have to make sure you do need a new canister and that the
> service writer didn't need more money in his pocket as he gets a cut of
> the profit. Is the check engine light on? If so go to AutoZone to have
> it read for free and let us know.
>
> The 97+ generation has problems with bad canisters that disintegrate
> inside and send carbon dust to plug up a lot of things. But otherwise
> it may just be a stuck evap vacuum switching valve (VSV) on the air
> filter housing.
>
> If it's the VSV, you can clean it by prying it open carefully without
> breaking the plastic port. Clean and lightly lube it. If you see carbon
> particles on the diaphragm spring inside then the canister is probably
> shot.
>
>
> jeff deane wrote:
>> Anyone done this. Dealer is telling me it needs one (it has 280,000
>> miles
>> on it) and I have located a used one. I just need to know if anything
>> else
>> ought to be replaced at the same time. I also understand that the
>> canister
>> is behind the muffler in the rear. I'd appreciate any insight you might
>> have on this.
>>
>> Jeff D.

>



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Old 24 Nov 2006, 01:17 pm   #6 (permalink)
Daniel
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Default Re: 98 Camry Charcoal canister replacement

jeff deane wrote:
> Anyone have the
> service manual for download?


http://oregonstate.edu/~tongt/camry/index.html

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Old 25 Nov 2006, 10:38 am   #7 (permalink)
jaket@surfy.net
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Default Re: 98 Camry Charcoal canister replacement


jeff deane wrote:
> Anyone done this. Dealer is telling me it needs one (it has 280,000 miles
> on it) and I have located a used one. I just need to know if anything else
> ought to be replaced at the same time. I also understand that the canister
> is behind the muffler in the rear. I'd appreciate any insight you might
> have on this.
>
> Jeff D.


Some of the codes seem to show up together in pairs. It could be a
faulty valve. The repair could cost over $200 and it may not improve
the performance of your vehicle. You may want to consider just turning
off the computer codes.

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Old 27 Nov 2006, 02:17 pm   #8 (permalink)
David In NH
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Default Re: 98 Camry Charcoal canister replacement

I had the exact same set of diagnostics on my '98 Camry LE and brought it to
a n Autozone shop since they run the scan codes for free. The mechanic who
did so couldn't tell me what was wrong and tried to convince me to buy
engine cleaner. I did so ($8 probably well spent anyway) but the codes
didn't go away. I then wound up at the Toyota dealer and had them fix the
problem. It was due to a failed gasket on gas cap. I'd suggest you get a new
cap (probably $10 or so) before you bring the car in for service. It might
also be that you were driving with the cap loose for a while. Check that
out.

Good luck.

- David

"jeff deane" <jdeane@everestkc.net> wrote in message
news:58b7f$45669685$4088c4a2$16170@EVERESTKC.NET.. .
> Well it is throwing 2 codes.....P0441 (Evap incorrect purge flow) and
> P0446 (Evap control circuit). Does that help narrow it down to Canister or
> purge valve assembly?
>
> Another poster said the Canister was in the engine compartment, but the
> dealer is telling me it is in the rear near the gas tank. Anyone have the
> service manual for download?
>
> Jeff
>
> <johngdole@hotmail.com> wrote in message
> news:1163918069.461965.189940@k70g2000cwa.googlegr oups.com...
>> You just have to make sure you do need a new canister and that the
>> service writer didn't need more money in his pocket as he gets a cut of
>> the profit. Is the check engine light on? If so go to AutoZone to have
>> it read for free and let us know.
>>
>> The 97+ generation has problems with bad canisters that disintegrate
>> inside and send carbon dust to plug up a lot of things. But otherwise
>> it may just be a stuck evap vacuum switching valve (VSV) on the air
>> filter housing.
>>
>> If it's the VSV, you can clean it by prying it open carefully without
>> breaking the plastic port. Clean and lightly lube it. If you see carbon
>> particles on the diaphragm spring inside then the canister is probably
>> shot.
>>
>>
>> jeff deane wrote:
>>> Anyone done this. Dealer is telling me it needs one (it has 280,000
>>> miles
>>> on it) and I have located a used one. I just need to know if anything
>>> else
>>> ought to be replaced at the same time. I also understand that the
>>> canister
>>> is behind the muffler in the rear. I'd appreciate any insight you might
>>> have on this.
>>>
>>> Jeff D.

>>

>
>



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