Beware charcoal canister breakdown!

[-=Jeff=-]

here you go:
CHEVROLET BLAZER 1995
CHEVROLET CAMARO (1984 - 1986)
CHEVROLET CORVETTE (1986 - 1990)
CHEVROLET S10 BLAZER (1992 - 1994)
CHEVROLET S10 PICKUP 1992
GMC JIMMY (1992 - 1994)
GMC SONOMA (1992 - 1995)
OLDSMOBILE BRAVADA (1992 - 1994)
PONTIAC FIREBIRD (1984 - 1986)
PONTIAC J2000 (1984 - 1985)
PONTIAC SUNBIRD 1986

All use the same canister. I got mine at Rock Auto they show the ACDelco one for 88.79..

[HAWAIIZR-1]

Originally Posted by tomtom72

Looks like another case of NLA? I'm thinking that other than the mechanical parts, valve & it's solenoid, what are the operating parts? The darn charcoal is all I can think of?

In a worst case situation if the part is NLA. What about going to an HVAC supply house and getting a bunch of filters that have charcoal impregnated into the media and doing surgery to do a swap out? Or, I just had this BFO, some fish tank filters use granular charcoal, why can't that work?

Okay, I admit I'm out where the buses don't run!

Tom,

You might be onto something and I do see used parts available to try hack open one. It seems to be the story of our life with these cars and the NLA. Not sure if it is even an issue to be concerned with or not, but there must have been a purpose for this. I have no clue about all of this. As long as you are not waiting for the short, yellow bus...........

[HAWAIIZR-1]

Originally Posted by -=Jeff=-

here you go:
CHEVROLET BLAZER 1995
CHEVROLET CAMARO (1984 - 1986)
CHEVROLET CORVETTE (1986 - 1990)
CHEVROLET S10 BLAZER (1992 - 1994)
CHEVROLET S10 PICKUP 1992
GMC JIMMY (1992 - 1994)
GMC SONOMA (1992 - 1995)
OLDSMOBILE BRAVADA (1992 - 1994)
PONTIAC FIREBIRD (1984 - 1986)
PONTIAC J2000 (1984 - 1985)
PONTIAC SUNBIRD 1986

All use the same canister. I got mine at Rock Auto they show the ACDelco one for 88.79..

Thanks Jeff. I'll check it out. Any part number by chance? I checked several applications shown and part numbers are all over the place. For example, the 85 Camaro take a different cannister for 4 cyl vs. V8 and some of the others show CP1032 too that does not have the bottom port. Please share the part number you got with the fitment for the MY 90 with bottom port. Otherwise they seem the same, but don't show a photo of the bottom. I did not check as to where that bottom hose goes too since everything else is the same on top.

[-=Jeff=-]

ACDelco 215155

Standard Motor Products: CP1032

[HAWAIIZR-1]

Originally Posted by -=Jeff=-

ACDelco 215155

Standard Motor Products: CP1032

Thanks Jeff. If you don't mind getting the GM number on the part that would be great. CP1032 did not work for 90 MY so far. Not sure what a AC Delco 215-155 looks like and what GM part number it cross-references to. Man, this stuff is a little confusing................

[-=Jeff=-]

17113150

[HAWAIIZR-1]

Originally Posted by -=Jeff=-

17113150

Thanks, I just saw this in my earlier post where I showed the photos of the Rock Auto listings. I have one on the way so we'll see when it arrives, but the one in the car is 17087214. So you are saying that 17113150 does have the port and fitting on the bottom.

Craig

[tomtom72]

Originally Posted by Mystic ZR-1

...and if the buses did run out there, the driver wouldn't stop for you

Hey now, I resemble that remark!


Craig, it's a good thing I used to walk to school, up hill both ways, or I proly would be on the short bus!

Look, charcoal is an absorbent material, or a filter if you prefer, or both. The only thing I don't know is what exactly it is supposed to do in an evap canister. Okay so the gas tank gets hot, fuel vaporizes & expands and goes to the canister to be....this is where I run out of brain power...absorbed is my guess as it is against the EPA to vent fuel vapor to the air. Okay so once the saturation point of the charcoal quantity in the canister is reached what happens to the extra? If the media is saturated it will eventually start to release liquid gas back out because it can't hold any more vapor. Maybe that's what our bottom port is for? I doubt it personally. More than likely the purge programing is written to purge the canister before the saturation point. So it gets sucked back into the motor to be burned. The only way you should, in theory, smell gas is if it's not purging. To me that means either the solenoid or the valve failed, and there is nothing wrong with the charcoal. There can't be anything wrong with the charcoal, it's not logical as it doesn't break down unless there is liquid gas present in the canister, and for quite awhile too. Therefore, if my cognitive process is correct ( which is open to debate! ) changing out the 90's valve & solenoid should keep us legal.
JMHO


Tom

[Z51JEFF]

I just replaced mine about a month ago,my cost for AC Delco was about $50.The reason I replaced it was I kept smelling gas at the right rear of the car,still smell gas at the right rear.

[HAWAIIZR-1]

Originally Posted by tomtom72

changing out the 90's valve & solenoid should keep us legal.
JMHO


Tom

Tom,

I don't know about all that charcoal stuff, but good point mentioning the valve and solenoid. I did find a GM 17113150, but we'll see if it fits when it arrives; wasted $10 and returning the CP1032 with other part number. As you said, the actual PN 17087214 is NLA and I'm not sure if I even really need it. Replaced both PCV valves yesterday since they were a little sticky with oil. Trying anything and everything to pass emissions, but it might be impossible here with their standard.

Thanks for your thoughts and input.

Craig