Hose from Air Filter to Intake Manifold?

teresatn
125

Asked by Feb 18, 2013 at 12:23 AM about the 2007 Chevrolet Equinox LS

Question type: Maintenance & Repair

What is the hose that goes from the air filter housing to the top of the engine?

12 Answers

tenspeed
77,435

Positive crankcase ventilation (PCV) - it burns oil vapors to reduce emissions

2 out of 2 people think this is helpful.
teresatn
125

thank u so much!

1 out of 1 people think this is helpful.
DavidH25
Not Active

True. Mostly. That's the PCV return, .If a crankcase were to be sealed, blow by from the combustion process would build to the point of blowing out the weakest point, the oil filler cap, valve cover gaskets, anywhere it could. Early engines used a simple vent. Then somebody thought of sucking the air out, using intake manifold vacuum to positively get the air out, hence PCV. There are two hoses, one on each valve cover, one sucking air out from vacuum, and the other, from air filter housing, to allow clean air back in from the vacuum created in the crankcase from the PCV vacuum source

1 out of 1 people think this is helpful.
DavidH25
Not Active

You can see the 2 hoses, the one on the left side observed from this vantage point, or passenger side that hose goes up and out of sight to bottom of air filter, the one on the right, again from this view (which is really the left side of the engine drivers side) goes to the PCV valve, air flowing from there to vacuum source back in to intake

2 out of 2 people think this is helpful.
Best Answer
DavidH25
Not Active

click on picture to see it better

2 out of 2 people think this is helpful.
judge_roy
Not Active

could be a pre-heater hose (kinda robot arm flexible aluminum) that goes from the exhaust manifold to a thermally activated switch that diverts the fresh air to be pulled from the manifold or fresh air;

1 out of 1 people think this is helpful.
DavidH25
Not Active

Good morning Bob. I re wrote that about 4 times trying to explain, but what are you talking about? I was only trying to show about the 2 rubber hoses vacuum and return

1 out of 1 people think this is helpful.
judge_roy
Not Active

yes of course, the stove kit which in cold climates is the only thing that will let you engine have it's morning coffee---but out west here you could take those things and throw them in the garbage can. When you start at an ambient temp of 50, them things aint necessary!

1 out of 1 people think this is helpful.
judge_roy
Not Active

pcv just is so you don't have to breathe nasty crankcase air, but your engine does- Not quite sure about this as being "the thing" that this customer was after. Those kind of robotty things are quite dramatic and usually get someone's attention as to know why. Perhaps this was the intention, tenspeed wasn't thinking drama, I guess.

1 out of 1 people think this is helpful.
judge_roy
Not Active

she never said "valve cover" at any point in time. just 'the engine' pardon my french.

1 out of 1 people think this is helpful.
teresatn
125

ok so now I'm so confused....you two are just too educatted! Maybe my son can figure it all out tho, lol, it's his car afterall, and he wanted me to ask the experts :-) Thanks guys....

teresatn
125

*educated

Your Answer

Add photo

Related Questions

Equinox
Looking for a Used Equinox in your area?
CarGurus has 53,255 nationwide Equinox listings starting at $1,500.
ZIP:

Search Chevrolet Equinox Questions

Chevrolet Equinox Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,160
#2 FordNut
FordNut
Reputation 640
#3 geezz
geezz
Reputation 570
View All

Related Models For Sale

Used Ford Escape"
1,073 Great Deals out of 98,214 listings starting at $1,985
Used Ford Edge"
578 Great Deals out of 44,822 listings starting at $4,995
Used GMC Acadia"
410 Great Deals out of 26,987 listings starting at $5,995
Used Honda CR-V"
648 Great Deals out of 62,142 listings starting at $1,495
Used Kia Sorento"
362 Great Deals out of 32,398 listings starting at $1,900
Used Chevrolet Malibu"
856 Great Deals out of 57,786 listings starting at $1,800
Used Nissan Murano"
294 Great Deals out of 21,135 listings starting at $3,000
Used Jeep Grand Cherokee"
887 Great Deals out of 66,777 listings starting at $600
Used Ford Explorer"
661 Great Deals out of 50,838 listings starting at $1,500
Used Chevrolet Tahoe"
644 Great Deals out of 31,483 listings starting at $1,500
Used Toyota RAV4"
516 Great Deals out of 39,221 listings starting at $1,850
Used Hyundai Santa Fe"
355 Great Deals out of 22,882 listings starting at $800
Used Nissan Rogue"
460 Great Deals out of 50,646 listings starting at $4,500

Used Cars For Sale

2016 Chevrolet Equinox LS For Sale
12 Great Deals out of 5,223 listings starting at $18,996
2015 Chevrolet Equinox LS For Sale
5 Great Deals out of 680 listings starting at $15,000
2014 Chevrolet Equinox LS For Sale
15 Great Deals out of 509 listings starting at $12,045
2013 Chevrolet Equinox LS For Sale
24 Great Deals out of 1,103 listings starting at $8,999
2012 Chevrolet Equinox LS For Sale
13 Great Deals out of 515 listings starting at $8,989