2.7 Husky

About a year ago my CEL came on, after fooling around with it I ended up having the secondary air injection pump changed out. When it failed it just quit, no sounds or drama other than the CEL.

Every morning when I start the car I hear the pump run for about a minute, then I hear it wind down.

Yesterday, it was a different sound. Louder and raspier. This morning it was really loud and a slightly different sound. I could hear it from 100 feet away. It had a throaty whine, like a turbofan engine. Again, it wound down after the normal amount of time. No CEL, no difference in drivability.

Anyone heard this before? Obviously something isn't right. I've talked to the shop that replaced it - they'll take care of me - but is the pump failing or is there something else that could be going on?

RSC

The noise will go away after the engine warmed up. How can I tell if it's the secondary injection pump?
Mine's also a 2000 but w/over 90k mi.

2.7 Husky

Sucks, because the part is $600+.

Epicman1

If the hose comes off of the air box, it could make a louder noise, suck up dirt, small rocks, etc. and eventually fail.

2.7 Husky

and my GF (I wasn't there) popped the hood and said the noise was coming from the top of the bipipe area.

Thanks for the tip.

2.7 Husky

Started the car with the hood open. The noise is coming from the area behind the bipipe/at the firewall/left of the coolant tank.

As the pump quit, I could hear the noise slow down. It's like a light scraping sound. So it looks like it will be a new pump for me.