So smog pump has been squealing, chirping, etc for about a week. Today I removed the smog pump pulley and used wwhite routing method with a 97 1/8" belt to keep the ol truck up and running. It works but squeals for about 2 seconds on start up, which from what I've read is to be expected.

I would like to either rebuild my smog pump or replace with a rebuilt/new smog pump. I live in a Metro area for now and frequently sit/sleep in the truck with it idling and just generally would like to keep OEM equipment so the next owner doesn't inherit mysteries.

I can't find any replacement pumps except for junkyards and ebay. Ebay wants $300, I haven't asked at junkyards but I'm pretty sure I don't want one anyway. My truck just turned 100k miles last month snd the pump is out so I doubt the junkyard part would last long. If anyone knows where I can buy a new/rebuilt smog pump please spare.

I am thinking maybe I could find a compatible smog pump new for a mustang etc. and then just swap the correct sized pulley over and be good. That's my hope.

Otherwise does anyone have a good write up on how to rebuild the smog pump? Something that will last 30k miles or more.

Thanks in advance!

 

The bigger trucks like F250HD and F350 had an idler pulley in place of the air pump which was not required on those trucks.

 

Maybe on California trucks with MAF instead of speed density. Otherwise they came with smog pumps.

 

https://www.fullsizebronco.com/threa....507492/page-2

 

What truck and engine? I’d take it off if it is pumping smog. The one on my truck pumped air.

 

None actually pump smog
They all pump air and are just called a smog pumps
Most at the junkyard will be no good due to sitting, the humid air ruins them.
Don't know where to tell you to get a new one but they used to be 125 new from Ford back in the 90s
I would go the Mustang route or whatever is the cheapest for a new one

 

I’ve never called them that’s because that isn’t what it is. I would suggest doing what I did and use an idler bracket and pulley. I got mine from LMR but I don’t know if the OP has a 302/351 or something else.

 

I plugged # from my last NPD catalog for the truck you have listed in your info:

https://www.google.com/search?q=F-9A...hrome&ie=UTF-8