Engine/Transmission (1998.5 - 2002) What causes erratic boost gauge readings?

[BRI7070]

About a month ago I started to notice that around 27-30 PSI of boost at WOT my boost gauge would start to do a little 5 PSI wiggle dance. Now the Wiggle dance is starting at 8 PSI of boost.



I have no Idea what is causing this and would like some input.



Thank you

Brian

 

[ROADWARRIOR]

My first Banks boost gauge started doing this. They sent me a new one and it has been fine since.



Dan

 

[BRI7070]

thanks for the reply. my gauges are about 2 years old. I was concerened that the turbo was doing some type of reverse boost double bark mushroom cloud making dance

 

[ROADWARRIOR]

I am assuming that your truck feels and sounds the same as before this started, correct? You could yank your boost gauge and hook it up to an air supply and see if it is nice and smooth. Someone else chime in here if I am wrong, but I would say that your turbo is more than likely fine.



Dan