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Old 12-04-2018, 01:20 PM   #1
MiSaturn
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Default Name that Part!

So, what do we call that black plastic thing with two hoses that sits on top of the throttle body?

And for extra credit, can anyone tell me what size o-rings it uses to seal against the top of the TB???

My homeowner supply of plumbing o-rings way too thick in cross section, was hoping to find something close at NAPA, just no idea what I'm asking for.

Discovered the o-rings had expired while I was in process of cleaning up my throttle body today. Thinking that its no big deal, but figured GM engineers must have thought sealing it off was important enough to put an o-ring there in the first place.
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Old 12-04-2018, 01:51 PM   #2
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Default Re: Name that Part!

Not actually an o-ring, usually a special finned seal. That is the vacuum harness. A 1/16 or 1/32 diameter o-ring might work though.

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Old 12-04-2018, 02:04 PM   #3
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Default Re: Name that Part!

McMaster may be most practical for those small O-rings, but an industrial bearing-supply place (in most big/medium cities) may also sell them retail.

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Old 12-04-2018, 02:08 PM   #4
OldNuc
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Default Re: Name that Part!

A good fully stocked hardware store will have it.

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Old 12-04-2018, 02:29 PM   #5
MiSaturn
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Default Re: Name that Part!

Much thanks!

Quick scan of the usual parts guys (NAPA, RockAuto, Oscaro) doesn't show a replacement unit, so refurbishment may be only solution.

Was thinking dab of RTV would seal it enough for time being, o-ring probably better solution long term. Or as long term as you can get for a 17 year old car with over 300,000 on the clock.

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Old 12-04-2018, 07:13 PM   #6
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Default Re: Name that Part!

The only source for a replacement vacuum harness is a junkyard. O-ring can be found a a decent big box lumber etc store or hardware store. Will not be at autoparts though.

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Old 12-04-2018, 08:09 PM   #7
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Default Re: Name that Part!

Quote:
Originally Posted by MiSaturn View Post
So, what do we call that black plastic thing with two hoses that sits on top of the throttle body?
I call mine Steve.

...
1999 Saturn SC2 (automatic) 23,000 orig miles (9/10/16)
1996 BMW E36
1971 Holden Monaro GTS 350
1908 Buick Model 10

Its official Saturn Night has removed all doubt.

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