[banditsc]

Another part to watch, the 928 community has been seeing failures of the purge valve, which is the same one on our cars. We might have a few more years before our start failing, but it's one to watch. Basically the purge valve operates for a few seconds to suck the fumes out of the tank into the charcoal canister. What is happening is when they fail, they fail open so it continues to suck on the plastic tank and eventually imploding the tank. The even worse part is that Bosch no longer makes the part, so whatever is left is in Porsche's warehouse which are currently going for $170. A simple test for the valve or a a used one is to just blow thru the valve, if it's open it's bad. The Porsche part # is 944 605 240 01.



The Bosch #0 280 142 151 and is used on the following:



PORSCHE 911 (964) (1988/12 - 1993/09)

PORSCHE 911 Convertible (964) (1989/05 - 1994/06)

PORSCHE 928 (1977/09 - 1995/11)

PORSCHE 944 (1981/06 - 1991/07)

PORSCHE 944 Convertible (1988/12 - 1991/07)

PORSCHE 968 (1991/06 - 1995/11)

PORSCHE 968 Convertible (1991/06 - 1995/11)



Another Bosch # is 0 280 142 157 which was used on a lot of common cars up to 2005, but Bosch is also no longer making it. Perhaps someone will find one that Bosch is actually still making.



   

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[flash]

oh goody - yet another rubber seal to fail, and soon no part to replace it



good info!

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[tamathumper]

This is the valve just in front of the fuse box, yes?



Are you saying they are imploding the fuel tanks?!

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[Langley968]

Oh boy... I see a "run" on this part happening!

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[banditsc]

Yes, they fail open which continues to suck on the plastic tank till it eventually implodes.

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[ds968]

and these valves can't be substituted with a BMW one, or an Audi one, or VW, or for that matter any other cars' purge valve, whether pre-95 or post 95 , with just a retrofit mod ?

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[banditsc]

If you can find one that looks like that and has the same connector and the pinouts are the same, then yes you could swap. The second Bosch part is for a bunch of Saab's and Citroens and Peugeot's etc etc, so there are parts out there are the same as ours, just have to find one that is still made.

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[tamathumper]

This is a little different than the one I was thinking of - but it's directly in line with it. I was thinking it was the black and white valve with the vacuum fitting, located right behind the top of the driver's side strut tower, but this valve is actually connected to the same hose, just further down according to the PET.



Part #14 on Illustration 201-15.



But I didn't think it was open until that black and white valve (part #15 - vacuum valve) on the same diagram got ported vacuum from the throttle body at <acronym title='wide open throttle'>WOT</acronym>.



$80.95 at http://market.autopartsfair.com/volvo-en...gn=autoelf if it's the same thing.

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[Cloud9...68]

Anybody know the life expectancy of the charcoal cannister, especially if you assume a previous owner had the habit of topping up the tank after the fuel nozzle shuts off?

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[ds968]

[quote name='Cloud9...68' timestamp='1380829123' post='150237']Anybody know the life expectancy of the charcoal cannister, especially if you assume a previous owner had the habit of topping up the tank after the fuel nozzle shuts off?[/quote]



Crap, I have a tendency to do that..not always, but from time to time I might round off the numbers with another half a gallon or so after the nozzle clicks off. What does that do ? Add carbon buildup on these valves or in something else ?

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[Cloud9...68]

According the the ultimate authorities on all things automotive, Click & Clack, it saturates the charcoal filter with liquid fuel, eventually rendering it ineffective at its job of absorbing fuel vapors. Although, on an OBD1 car like the 968, I suppose you'd never know if the evaporative emissions collection system wasn't working properly, so it may not be a big deal, other than to air quality.

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[Rap]

Is this the cause of the gas smell in some cars?

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[AJG]

Well you've scared the hell out of me, got the only one in stock at Porsche UK and its on its way. A bit dearer than $170 even with 15% discount! Help ma boab ma sporrans empty again!

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[tamathumper]

Send it back, buy the one I linked to for $81.

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