I have a 95 Chevy diesel. Has the 6.5L turbo. When I drive it, I can't hear or really feel the turbo working but when I take the filter off I can see that the turbo is indeed running. Is that how it is supposed to be?

 

You may not hear a turbo whistle on those motors. A easy check is just to figure out how much boost they are suppose to run stock and hook up a vacuum/boost gauge and see what your truck is making. If it's no where near what the factory settings are, then you know you have a boost leak or issue with the turbo system.

 

[QUOTE=Detroitdiesel;5350151]I have a 95 Chevy diesel. Has the 6.5L turbo. When I drive it, I can't hear or really feel the turbo working but when I take the filter off I can see that the turbo is indeed running. Is that how it is supposed to be?

I've seen them make as much as 15psi with aftermarket exhaust. That being said, we have one as a farm truck with low miles and it doesnt have a lot of power but gets great fuel mileage. We use it as a service truck, and pull with the 8.1 and Dmax