Beware charcoal canister breakdown!

[tomtom72]

Originally Posted by Dynomite

Your cognitive processes are functioning but your eyesight is deteriorating after a hard day at school if you think you are walking UPHILL both ways from school

I went to Catholic grammar school so everyday was a hard day!

[HAWAIIZR-1]

Okay, so another part number that does not fit the 90 model year is
GM 17113150. I received it a few days ago and still different. WTF? Time to investigate what the heck the hose on the bottom of the cannister goes to.

The actual part number 17087214 that is in my car now seems to be NLA and the curse of the 90 MY Club.

[tomtom72]

I'm wondering if the 90 ZR-1 is the unique application or are all the pre-91 corvettes, L98 included, are the unique applications? I should try to run some parts searches using an L98 as a tag?

Oh, Cliff pointed out a flaw in my thinking, the bottom hose has to let air in when the solenoid commands the valve open or the engine vacuum can not suck the gas fumes back into the motor to be burned! DUH! Ya have to have two openings to get gas movement, just like an HVAC duct system you need a supply register and a return register or you have no atmosphere circulation.


Tom

[HAWAIIZR-1]

Originally Posted by tomtom72

I'm wondering if the 90 ZR-1 is the unique application or are all the pre-91 corvettes, L98 included, are the unique applications? I should try to run some parts searches using an L98 as a tag?

Oh, Cliff pointed out a flaw in my thinking, the bottom hose has to let air in when the solenoid commands the valve open or the engine vacuum can not suck the gas fumes back into the motor to be burned! DUH! Ya have to have two openings to get gas movement, just like an HVAC duct system you need a supply register and a return register or you have no atmosphere circulation.


Tom

Tom,

You might be right in that others fit. It is just frustrating the part number (17087214) on the car comes up with nill. Man, you are a critical thinker and smarter than you give yourself credit for. Thanks for your thoughts.

Craig

[-=Jeff=-]

so what does not fit about it? do you have a picture of the original and the replacement?

[tomtom72]

Thanks Craig! I was just thinking that the newer Z's have the canister at the rear and our 90's have it at the front; and the newer Z's canisters are mounted upside down and ours are right side up....so where was the 90 L98 canister mounted and was it upside down or what? That was my BFO for the day!

I still maintain that as long as we can get the purge valve that the rest of the old stuff can stay. You can even get the filter as a replacement part according to rock auto.

[HAWAIIZR-1]

Originally Posted by -=Jeff=-

so what does not fit about it? do you have a picture of the original and the replacement?

The only difference is the bottom of the cannister on the original has a L angled connector with a hose on it. The two different part numbers that I bought has a flat bottom with no connector for the hose on the bottom. I don't have any photos as I did not completely remove the old one and started too, until I found I did not have the correct part. I have yet to check what the hose leads to. Maybe all 90 MY does not have the same part I have? Mine is SN# 1727 in production if that helps.

[HAWAIIZR-1]

Originally Posted by tomtom72

Thanks Craig! I was just thinking that the newer Z's have the canister at the rear and our 90's have it at the front; and the newer Z's canisters are mounted upside down and ours are right side up....so where was the 90 L98 canister mounted and was it upside down or what? That was my BFO for the day!

I still maintain that as long as we can get the purge valve that the rest of the old stuff can stay. You can even get the filter as a replacement part according to rock auto.

Tom,

This is mind boggling to me. I did try the other Corvette engines and earlier models up to 87 finding the same results of part numbers already tried: http://www.rockauto.com/catalog/x,ca...,parttype,5180

Then again, this is using Rock Auto since they also have photos. Having said that, there was a listing on Ebay a few days ago for a used one someone was selling that appeared to be exact and have the L nipple connector on the bottom of the cannister. It is easy for any of us with a 90 to take a minute to open up their hood and feel the bottom of their cannister to see if there is a hose connected to it. I do have one on order with parts.com, but I don't know if they are BS or not as I found some good and bad about that company. The current status says: on order (it was placed 2 weeks ago). The part ordered is the exact part number that is in the car. Like you said, it may not even be needed and just the valve, etc. as it won't matter if the charcoal cannister is new if the valve does not work and have not looking into troubleshooting methods in FSM yet to test.

[-=Jeff=-]

Bottom hose connection is a vent. I know when I replaced it on my 89 L98 it had the vent on top and worked fine. I am almost positive my 90Z I replaced the canister with no issues. That was in 2007

[HAWAIIZR-1]

Originally Posted by -=Jeff=-

Bottom hose connection is a vent. I know when I replaced it on my 89 L98 it had the vent on top and worked fine. I am almost positive my 90Z I replaced the canister with no issues. That was in 2007

Jeff,
Thanks. I'll check it out and try to match up to see if the hose can connect to a vent on the top instead. I thought I had 3 connections and the top on both so did not know where that other hose would go.