What is this PCV-looking hose that is on the Air Intake Duct

Tiny
LINNEX MILES
  • MEMBER
  • 2003 CHEVROLET IMPALA
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 250,000 MILES
I was inspecting the hoses on my car and I made my way to the air intake duct. The best way I can describe it is the PCV-looking hose that is on the air intake duct. That is above the air intake sensor and to the extreme left to the mass air flow sensor. I noticed a crack and when I went to inspect it was brittle and snapped in two.

I supplied a picture for reference. When to the local auto parts store, they have no clue attempted to reach out to local mechanic, but was not in. Please advise as to what is the part? Where can I find it? And is there a diagram to show where the other end goes?

Thanks!

Also, the opposite end was oily. What do I need to inspect? Thanks again.
Do you
have the same problem?
Yes
No
Thursday, October 13th, 2016 AT 1:38 AM

6 Replies

Tiny
HMAC300
  • EXPERT
It is a breather hose that goes to valve cover they get oily from sucking oil vapors to be reburned when car is running. Auto part should have it if not dealers may.
Was this
answer
helpful?
Yes
No
+3
Thursday, October 13th, 2016 AT 5:39 AM
Tiny
LINNEX MILES
  • MEMBER
Thanks for the info! To share my discovery, the technical name for part in question is called the 3.4 LITER V6 ENGINE CRANKCASE VENTILATION TUBE GM Part Number 24508188. Well, as the parts dealer has educated me that is. Is there a diagram available that shows where the opposite end goes? The Haynes manual is not providing me much info. Thanks!
Was this
answer
helpful?
Yes
No
+2
Friday, October 14th, 2016 AT 5:30 PM
Tiny
KEN
  • ADMIN
Hey Linnex,

Yes the tube goes into the top of the valve cover.

Best, Ken
Was this
answer
helpful?
Yes
No
+4
Saturday, October 15th, 2016 AT 12:16 AM
Tiny
JEDUNN
  • MEMBER
I came across this thread searching for info on this exact hose. Where exactly does the other end connect to? I didn't realize it came loose until after I was done replacing the air filter. A diagram or detailed explanation would help, I know you said valve cover above, but it doesn't seem long enough to really reach anywhere. I also have a 2003 Impala. Here's a pic below of it hooked only to intake.
Was this
answer
helpful?
Yes
No
+1
Thursday, March 9th, 2017 AT 10:17 PM
Tiny
HMAC300
  • EXPERT
The other end goes to valve cover so engine vapors can be sucked into engine and burned. Check both covers there should be a hole towards the air duct
Was this
answer
helpful?
Yes
No
+1
Friday, March 10th, 2017 AT 6:32 AM
Tiny
JEDUNN
  • MEMBER
Thank you. I found the hole and once I figured out the proper path the hose laid between the two parts, it popped right into place.
Was this
answer
helpful?
Yes
No
+1
Friday, March 10th, 2017 AT 10:07 AM

Please login or register to post a reply.

Recommended Guides