I had the same problem on 2017. The issue was a low coolant levelThat’s good to know! I didn’t disconnect anything! So i probably damaged it.
You do realize that each priming instance needs to be at least 90 seconds, right? If you're not priming for at least 180sec, you're doing it wrong.Recently bought a 2016 Titan. Well the low fuel pressure service fuel system warning came on. Replaced both fuel filters and primed system as required. Now it’ll start but it cranks numerous times before it does, the fuel system warning is still on and when i drive it just a few miles the check engine light comes on along with reduced power. Everything I’ve been reading I’ve come to the conclusion it’s a lift pump issue?? I want to order one but 900$ without knowing for sure is a lot. Any ideas?
If you or someone changed the filters WITHOUT disconnecting both battery negatives, your pump was damaged.
Same thing happened on my 2016 XD. Mine ran for a week before crapping out. Put the new pump in, end of problems.
I read that the 2016 pumps had issues and were easy to damage. The replacement pump was a newer model.
If anyone has a good diesel mechanic in the Los Angeles area please let me know.
Stay away from Top Notch Diesel. About 2 years ago they were great. All the old management is gone.
The new crew is,,, I'd rather not say. Just beware.
Good luck with your truck!