[rollerma2010]

While I was working with n the truck today, I noticed a green LED by the intake horn. Any ideas what that is?

 

[Cmmns.lvr]

Is it just an led or is it part of something larger? If it is part of a board how many wires? Maybe a picture would be best

 

[champyfz450]

My bet is its a boost fooler


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[cerberusiam]

Sounds like a Quad boost fooler plugged into the MAP sensor.

 

[lpennock]

Agree it sounds like the Quad Boost fooler. With the Smarty remove it and you'll find the truck pulls harder on WOT.

 

[rollerma2010]

 

[rollerma2010]

It kinda caught my eye while I was waiting for it to warm up so I could burp the cooling system after changing the hose that is between the turbo and block that is a pain in the you know what to change.

 

[lpennock]

Looks like a boost cooler. Not needed with a smarty.