Secondary air injection pump?

Tiny
GIOVANNI23
  • MEMBER
  • 2001 GMC JIMMY
  • 4.3L
  • 6 CYL
  • 4WD
  • MANUAL
  • 256,735 MILES
I don’t know where those hoses are connected to for the secondary air injection pump, but also the car has many problems when I turn on the fan and I start driving, it makes a big room noise or even when I’m going on a high speed it makes a big room nice as well so I don’t know what can it be.
Monday, July 14th, 2025 AT 7:41 AM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Please start a new thread for the "big room noise" because we only handle one question per thread. Here is how the air injection pump hoses go. Check out the images (below). Let us know if you need anything else.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Monday, July 14th, 2025 AT 8:36 AM
Tiny
GIOVANNI23
  • MEMBER
  • 5 POSTS
Oh okay, thank you. Where is those are location to?
Was this
answer
helpful?
Yes
No
Monday, July 14th, 2025 AT 8:47 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
They go to the air pump which is in front down low by the frame.
Was this
answer
helpful?
Yes
No
Monday, July 14th, 2025 AT 11:13 AM
Tiny
GIOVANNI23
  • MEMBER
  • 5 POSTS
I mean where are those needed to be connected to.
Was this
answer
helpful?
Yes
No
Monday, July 14th, 2025 AT 6:08 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
This is what it connects to.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Monday, July 14th, 2025 AT 7:02 PM

Please login or register to post a reply.

Related Air Pump Content

VIEW MORE