Bad start

When you try to start truck is there any noise, when keying to start?

 

Bad starter? Have you hit it with a hammer?

 

Will it crank or what exactly does it do?

 

You mean the starter wont work, or it turns over but engine wont start?

 

I have a 2016 Freightliner with a Detroit Diesel, and had the same problem when it was still a company truck. My issue was resolved by a starter replacement.

When the truck fails to start, do you hear any tones or beeps that are not normal?

My truck always gives a steady tone for a while, then the OnGuard system beeps once when it is finished calibrating. Then I crank it, and there are no more electronic noises.

When my starter failed, and when my batteries were bad, there was an additional beeping while turning the ignition.

 

1) Check your battery connections and connections to starter. They all go on one big bolt, and it can come loose.

2) Could be the clutch / starter safety interlock. SLAM your clutch pedal all the way down several times, see if it starts. This can be defeated by taking like a #8 or #6 gauge wire and touching it from the positive lead ( red ) on your alternator to the large bolt I mentioned on the starter.

3) If bypassing the clutch safety switch doesn't work, you probably need a starter.

Just replaced one in Truck 2 just like yours, similar mileage.

 

My international did this right from the git go, It might do it and then not do it again for 5 months to a year. I could jump across the solenoid just enough to make a sound, then hit the start button and it would start.
After 4 or 5 years I finally went ahead and changed the starter and cured it. I could have just changed tthe solenoid I am sure.

 

that clutch safety switch be my guess, idk why they even put em on crapcadias