My '05 F250 diesel turbo doesn't kick in all the time! Does anyone have similar problems and what was the cure? Other than it not working all the time, it works well when it does engage. Thanks, Brad

If you have not been using a full-synthetic diesel HDEO, the turbo may be coking up on you. This link may help:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-8.html#post1415281

Poleman: MAP hose to intake manifold. Primrose Diesel C-Tain Boost (Denton, TX). Watch accumalation soot / coke buildup in turbo / intake / EGR (also water leak to intake, see steam @ tail pipe), EGR valve (front top intake, inspect)