I plan on running seafoam through the brake booster on my 4800. I have a shiver while the truck is in park. I've read running seafoam through the brake booster can possibly fix it and it's a cheap option. When you add seafoam to the oil you need to change the oil 50 miles later. Would I need to do the same if I just ran it through the booster? Thanks

 

Also by adding seafoam to the brake booster would it clean out my idle control valve?

After adding the seafoam do I reconnect the line right AWAY after I shut the truck off?

Last question. Probably a dumb one but my muffler came off and I'm waiting for the one I ordered. Not having a muffler when I'm doing the seafoam won't effect anything right? Thanks

 

to clarify, your using the vacuum line from the booster hose as an entry method for the seafoam into the manifold....not adding seafoam into the booster itself. the vacuum port is after the iac passage so it will not go into the iac.


are you sure the problem isn't a lean condition from leaking intake gaskets?

 

Okay thank you. And I hope not. It isn't throwing any codes.