02 2500 hd Sierra 6.6 lb7 duramax truck won’t start crank...

Hello there, I am Cam. I am licensed automotive technician with more than 18 years experience. As an expert on the site, I only have access to your question. Any billing questions or concerns would require a customer service specialist. A couple things before we get going; - I am around most days but not every minute of every day. If you reply while I am offline, I will respond when I am next online. -I am a Firefighter/Paramedic which might require me to drop and run at any time without warning. If this happens, I will reply as soon as I am able to. -The website will automatically offer a phone call. Some times they are beneficial, sometimes not. I am sorry to hear you are having troubles with your vehicle. While I am looking at your question, can you tell me who I have the pleasure of assisting today?

My names Tony

Tony, Lets start with fuel, how are you checking that it's getting fuel?

I got the truck started brother but I have a few other questions

Ok, how can I help you?

My truck runs at like 170 degrees is that to cold or do I need a new thermostat

That sounds normal. They normally run about that until you get towing hard.

Another question sorry to bother you my truck runs at 29 lbs of boost I should be pushing 35-40lbs but but I can’t find the boost leak

Do you have codes set for under boost? Is the air filter clean? Did it run at 35-40 before?

No I don’t have codes set but I know that the last test hit I made when motor was fresh tuned I ran a half mile at 128 at 39 lbs of boost

IF there are no leaks then your turbo is not making the same boost. perhaps the waste gate is leaking, the [engine](/topics-engine-chevy/) itself is not pushing the same [exhaust](/topics-exhaust-chevy/) out, something like that.