someone told me it is rare for the evap/charcoal canister to go bad, and is an expansive fix. What are some less expensive things 2 rule out the possibility of a bad evap canister?
2007-01-16 06:43:57 · 5 answers · asked by Cori 1 in Cars & Transportation ➔ Maintenance & Repairs
You have not told us what kind of vehicle you have so that makes it impossible for us to look into our crystal ball and diagnose the 30 or 40 different things that could cause an EVAP code. You can not guess, that is why professional auto techs use expensive diagnostic equipment to give you that answer. Who ever told you about the charcoal canister should get an automotive book so they can learn all the rest of the parts of an emission system before they start guessing at your problem. Then they can name 100 different parts that it could be.
2007-01-16 07:00:36 · answer #1 · answered by Dave 3 · 1⤊ 0⤋
If you are not a mechanic, there isn't much you can do. To test it definitively, you require special tools and equipment.
They don't wear out as a rule. Failure is a result of two primary causes—
1) "Topping" off the fuel tank when refueling. Don't do that.
2) Damage due to road debris or collision. If the case is cracked and cannot be put into a state of vacuum, it will require replacement.
I would think that your issue has more to do with the EVAP system rather than merely the canister.
There is a prescribed diagnostic procedure for your car and that system. It will be discussed in the repair or shop manual for the car, available at the local library.
If you would like further information, e-mail me.
Happy Motoring
2007-01-16 06:55:51 · answer #2 · answered by Ironhand 6 · 0⤊ 0⤋
It is pretty rare fo a charcoal cannister to go bad. And since you are popping fault codes Its gotta be a newer ECM controled system rather than the old passive systems.. Some of the things I would do is hook up a OBDII reader and clear all fault codes and see if it reoccurs.. (sometimes there is no actuall fault except an intermittent one but the computer stores the code) if it does start looking for broken Vacuume lines to various valves, and or faulty sensors & valves. I wish I had a dollar for everytime a problem turned out to be nothing more than a crispy vacumme line end on something and it was just leaking a bit.
Oh and finding a sympathetic or bribable mechanic wont work in the State of California.. all smogs as they do it, are hooked into DMV's computers these days.
2007-01-16 07:01:40 · answer #3 · answered by darchangel_3 5 · 0⤊ 0⤋
it's probably cheaper to find a different mechanic to inspect it. i had the same problem my car is 9 yrs old no way would it pass emissions test but i found the right guy to inspect it and viola so long as the rest of the car is up to code you should be able to talk a reasonable mechanic out of failing it for emissions alone. maybe even bribe him idk. i know this probably doesn't help much. if your in w.n.c. i.m. me i'll fix you up with a good mechanic
2007-01-16 06:56:25 · answer #4 · answered by eskew_obfuscation 3 · 0⤊ 0⤋
Year make model engine????????????????????????????????????????????? ..there are two electrically operated valves that control that system. Also check all hoses for cracks.. Make sure the gas cap- hasn't got a bad gasket or relief valve...During the inspection they should check the cap, did they???? Bring the cap to the inspection station and have them check...In Mass. it is required...
2007-01-16 09:03:08 · answer #5 · answered by buzzwaltz 4 · 0⤊ 0⤋