intake resonator box 02 envoy

1741 Views 7 Replies 4 Participants Last post by 691RyderMidnyte, May 14, 2016

trail02voy

Discussion Starter · May 10, 2016

Hey guys hope you can help. I have a 2002 gmc envoy I6. When changing spark plugs I happened to notice on the right side of my intake resonator box there was a little nipple there that I assumed should have something on it.. However there hasn't been since I've owned it about 3 months now.. From what I have found is that a air line goes from it to the fuel pressure regulator. Well on mine it comes from the fuel pressure regulator and hooks on a little nipple I have noticed on all others are just plugged off. I haven't noticed any rough running or idle or anything like that. I assume I should correct this and plug off that port like all others seem to be? I circled in red where its currently hooked to. That is the port that's normally plugged off. please help

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trail02voy

Discussion Starter · #2 · May 10, 2016

help

any help at all would be appreciated.. I cant seem to find any info on this matter. I was hoping I would be able to find that here. thanks all. :worried:

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Bruter

· #3 · May 11, 2016

Mine is plugged off. No engine issues.

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trail02voy

Discussion Starter · #4 · May 11, 2016

Are you meaning the one circled in red is plugged on your engine?

Bruter said:
Mine is plugged off. No engine issues.

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Bruter

· #5 · May 12, 2016

Yes it is.

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691RyderMidnyte

· #6 · May 13, 2016

the nipple on the intake is for the long wheel base models.. for a vacuum operated coolant valve for the rear heater. on short wheel base models it is capped off as it is not needed..

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robertgee

· #7 · May 13, 2016

691RyderMidnyte said:
the nipple on the intake is for the long wheel base models.. for a vacuum operated coolant valve for the rear heater. on short wheel base models it is capped off as it is not needed..

691, good to see you stopping by here! Always good answers.

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691RyderMidnyte

· #8 · May 14, 2016

robertgee said:
691, good to see you stopping by here! Always good answers.

I swing by from time to time.. lol not very active on forums anymore.. mainly the gmtn and ss facebook pages though.

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