Nissan Sentra Crank no start

Tiny
BUSINESSFRED
  • MEMBER
  • 2014 NISSAN SENTRA
  • 1.8L
  • 4 CYL
  • AUTOMATIC
  • 169,000 MILES
I have a long crank, plenty of battery life. I believe my fuel pump may have given out because I have someone turn the key to ON (| |) and I dont hear my fuel pump prime at all (no buzzing or humming)

So far I checked the fuel pump fuse and even swapped it for a new one, I sprayed some starting fluid into the intake and it didnt sound like it was going to start either.

I had no previous fuel delivery issues, and the car was running fine prior.

I am going to replace the fuel pump first, but I wanted to ask if there was a fuel pump relay or any other troubleshooting I can try before I replace the pump. .

Thanks in advance
Saturday, September 6th, 2025 AT 10:44 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 15,233 POSTS
If you sprayed starting fluid and it didn't at least fire, the pump probably isn't the problem. Long crank and no start sounds more like a crank sensor. However it's not real easy to test without a scan tool or a scope. On some vehicles you can also use the tach to see if it's working, no movement when cranking shows no signal.
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Sunday, September 7th, 2025 AT 3:14 AM

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