stupid smog pump wont shut up!

[jezebel]

I took my 88 in to have the pulley changed on my smog pump and of course the shaft on the pump was worn, so.....that's right, a new smog pump. So $300 later, my smog pump pulley still sounds like its eating itself. It makes a rhythmic grinding sound for the first 10 mins the truck is running, then shuts up. If it sits for a while, I crank it and it does it again. Sometimes it doesnt go away at all, just keeps on grinding. So essentially, I have the same problem as before, Im just out $300!
This cant be good Im guessing. Im gonna take it back to the shop that put on the new pump and tell him to redo the work. I am just curious if anyone else has had this same problem??

 

[3_puppies]

are you positive it's from the smog pump? have you isolated the belts?
with the amount of miles you have, I'm wondering if it's the "wheels" for the a/c belt

did they use a new belt?

 

[jezebel]

They used the same belt. Yeah Im sure its the smog pump, spent a few minutes with my head in the engine last night while it was running and its definitely coming from the pulley on the smog pump. Maybe I have bad luck and the re-maned pump had a bad pulley?? None of my other pulleys make noise or shimmy at all.

 

[brett76]

sometimes they make noise for a little bit. they have a 500 mile break in period

 

[mkguyvr]

if you live in a no smog state like florida where i live, when mine went out i just took the guts out of it and it became an idler pully instead of a pump. $300 bucks is alot for such a piece of crap