Secondary Air Injection Noise
December 7th, 2008, 6:01 PM
#1
CF Beginner
Thread Starter
Join Date: Dec 2008
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Secondary Air Injection Noise
I have a 2000 Silverado pickup 5.3 engine. There is a whine/hiss/hum noise coming from the secondary air injection area and it almost seems to be the air pump itself. The noise only happens when I first start the vehicle and goes away after 30 seconds to a minute. Does anyone have any suggestion on how to remedy the problem or troubleshoot it.
Thanks in advance.
Thanks in advance.
December 9th, 2008, 7:02 PM
#2
CF Active Member
Join Date: Mar 2008
Location:
Posts: 158
Likes: 0
Received 0 Likes
on
0 Posts
RE: Secondary Air Injection Noise
The pump will normallyrun on start up for up to a max around 3 minutes.Length depends on a variety of different things.Ifyou do not haveaccess to ascan tool you will need to isolate noise quickly! The pump shouldwhine when running. Check for obvious itemsbefore taking it in- Loose hoses/broken plastic clamps, missing retaining hardware, plugged inlet, etc.
Thread
Thread Starter
Forum
Replies
Last Post
BattleSausage
Silverado & Fullsize Pick-ups
5
November 9th, 2010 12:49 AM
Enviouz
Monte Carlo & Lumina
5
April 22nd, 2008 3:04 PM
