question..
 

:confused: Hi all, I need a air pump off a volvo for a hot rod project Im working on, I need to know the location under the hood I will find the air pumps off 1990 to 1997 models.. Thank you..

What specific vehicle you are needing it for would help.....can you give any more info?

On the 850's, it's installed under the battery tray. There's a small hose (apx. 1 inch in diameter) connected to the front of the airbox that runs down to the pump.

If you're looking at a different Volvo, I'd guess the setup is the same so look for the hose coming off the airbox and follow it around.

Thanks guys,it's not going on a volvo, just follow the hose,thanks again..

Update
 

Hi all,got the air pump off a 850,have it all hooked up,runs for about 10 seconds then shuts off, it will start back up in about 1 minute, is'nt this pump suposed to run all the time except at idle??

Nope. The air pump forces air through the exhaust when the engine is cold in order to improve the heat-up time of the catalytic converter. My understanding is that it's mostly an emmisions improvement bit. FYI - when the air pump system fails, it throws a P0410 error via ODBII and will cause cars to fail emmisions testing.

It is designed to run without the key in the ignition. If you need it to run non-stop, I'm sure you've be able to rewire it with little effort.

But that makes me ask; if you're doing a hot rod project, why do you need an air pump that only exists to improves emmisions?

vjaneczko ........ using it to pull 4 inches of vaccum from the crankcase and routing it into a catch can for any oil it may pull to increase HP,and most ford rangers with a 5.0 installed have a crankcase ventalation problem,don't know why,this also helps with this problem