AirDog II Question?

[Gilstan]

I just picked up my truck after having an AirDog II 165 installed. It's Loud! You can hear the pump at idle as easily as you can here the engine. I thought that it would be loud at start then quiet down like the stock pump. Are they all like this? If so, is there a way to quiet it down?

[06powerstroke06]

Just be glad you dont have a fass!! Its just the nature of the pump. If its sucking air or laboring hard it will be louder. How much fuel is in the tank?

[Gilstan]

Just filled it up and it sounds the same. Do you think there might be a restriction?

[PGreenSVT]

Their mounting system is the culprit. It sandwiches the frame between 2 metal plates so all the pump noise and vibration is channeled into the frame and amplified. I had the same issue and it drove me nuts. I took the stock mount apart and dumped the side that doesn't have the pump mounted to it and got rid of it. I went to Lowes and got a 4" rubber pipe coupling and cut it top to bottom so I could open it up flat. I put that between the frame and the other pump mounting plate, drilled 2 holes through it and the frame and bolted it down. No more noisy pump.

[Gilstan]

It's driving me nuts too. I'll have to get under the truck to see exactly what you are explaining. Anyway, it's good to know that the sound can be dampened with a rubber insulator between the AirDog mount and truck frame. Sounds like a good weekend project. Thanks!

[Gilstan]

Ok, I just went under the truck to look at the AirDog. I just want to get it straight. You got rid of the large mounting plate and spacer and mounted the stock mount to the fram rail with the rubber gasket in between?