Loss of power and acceleration lag

ok guys freightliner century detroit 12.7 so my rpm,oil pressure, water temp went out they seem to be working intermittent wherever they want aslo noticed that my truck literally takes 4-5 seconds on lagging when accelerating and major loosing power going uphill no matter if it is small or big any ideas also no ecm codes

 

IT MIGHT BE TURBO, ANY BLACK SMOKE?

 

no black smoke at all this really got me messed up lol thinking

 

Do you have a boost gauge? Are you building boost. May have a leak in your charge air cooler.

 

air cooler brand new about 2 months ago boost Gauge shows I do boost normal but my acceleration and boosting lags about 5 seconds before I go to my peak 28pnds boost

 

OK, Even though it is brand new one of the hoses could split or have a pinhole. when you say lagging are you talking about the Turbo spooling up? Also I would make sure that your air cleaner is clean maybe even put a new one in change your fuel filters. Start with the places that are the cheapest first

 

yes spooling up and well if I floor the pedal to the ground truck won't accelerate right away it will take 5 seconds slowly gradually accelerating and for thr turbo spooling up as well i checked all hoses clamps everything and nothing they were new as well

 

Actuator on turbo

 

You can probably can build one yourself but mechanics have a tester that they charged the cold air system to about 40 pounds and check for leaks that's the best way to check it. Are you blowing black smoke out of the stack?

 

wouldn't that trigger a code