slight squeaking sound at start up

[embryoguy@mac.com]

so i recently started to hear a slight squeal sound at start up. its not loud but noticeable. it only last for about a min, and after engine warms a bit its gone.

should i be concerned? thanks in advance.

[oc-boxster]

If it sounds kind of like a hair dryer by your passenger rear tire and It stops after 2 minutes or so it's your sexondary air injection pump

[embryoguy@mac.com]

yeah thats what it sounds like. so is that ok? or sign its about to go? thanks for your input.

[oc-boxster]

No it's a normal sound and you should hear it on every cold start.

[embryoguy@mac.com]

ok thanks very much ! i can sleep now lol

[kk2002s]

Hate to ruin a good nights sleep. The air injector is one sound that is expected but there is a bearing in it that can go bad. I'm starting to hear a very high pitch squeal while the injector is running. So I suspect that the bearing that the injector runs on is going bad

[san rensho]

Originally Posted by kk2002s

Hate to ruin a good nights sleep. The air injector is one sound that is expected but there is a bearing in it that can go bad. I'm starting to hear a very high pitch squeal while the injector is running. So I suspect that the bearing that the injector runs on is going bad

Yep, eventually it will start throwing codes. Theres a write up over on rennlist on how take the pump apart and lubricate the bearing that goes bad.

[kk2002s]

Well last night I took my SAI-pump apart and using a Lube Needle, filled the motor bearings with grease.
I started and no high pitch squeal, just regular hair dryer sound and that with engine cover off so I could hear very clearly
So time and more starts will tell.
It seems all I do is repair/replace sealed bearings.
My table saw, my jeep's AC compressor clutch pulley.
These dried out creatures are everywhere

Good write up on rennlist

[particlewave]

Mine is more of a hum than squeal...you might want to lube it as kk did or you might be buying a new pump.