Fuel pump/fuel filter replacement 2015 Q50

In 2014, the G37 Sedan became Infiniti Q50. G37 Coupe and Convertible became Infiniti Q60 under Infiniti's new naming structure - Here's the place to discuss the Q50 and Q60!
molonlabe
Posts: 14
Joined: Thu Sep 08, 2016 2:21 pm
Car: Current: 2015 Q50 Base, 2012 G37X, and a 2014 Honda Odyssey.

Previous: 2016 Q70L, 2015 Q50 Premium, 2017 Q50 Premium, 2018 Q50 Luxe AWD

Fuel pump/fuel filter replacement 2015 Q50

Postby molonlabe » Fri Nov 15, 2019 10:35 am

I bought a 2015 Q50 from an car auction and it possibly has water in the fuel tank (no sign of water in the engine). Car does start, but runs very rough, then stops. So my guess is water in the fuel line and/or tank..

How do I drain the tank? Do I have to drop it, or can i use a syphon? 2nd, can I access the tank and fuel pump through the back seat? And can I dry out the pump and filter and reuse it, or will I need a new pump?

Any tips or info anyone can provide would be greatly appreciated..


User avatar
telcoman
Posts: 5585
Joined: Sat Jul 08, 2006 11:30 am
Car: 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796mi. 2013 Altima 2.5SV
Location: Central NJ

Re: Fuel pump/fuel filter replacement 2015 Q50

Postby telcoman » Sat Nov 16, 2019 12:09 pm

molonlabe wrote:
Fri Nov 15, 2019 10:35 am
I bought a 2015 Q50 from an car auction and it possibly has water in the fuel tank (no sign of water in the engine). Car does start, but runs very rough, then stops. So my guess is water in the fuel line and/or tank..

How do I drain the tank? Do I have to drop it, or can i use a syphon? 2nd, can I access the tank and fuel pump through the back seat? And can I dry out the pump and filter and reuse it, or will I need a new pump?

Any tips or info anyone can provide would be greatly appreciated..
Follow the steps in the FSM

http://www.nicoclub.com/FSM/G37/Sedan/2013/FL.pdf

molonlabe
Posts: 14
Joined: Thu Sep 08, 2016 2:21 pm
Car: Current: 2015 Q50 Base, 2012 G37X, and a 2014 Honda Odyssey.

Previous: 2016 Q70L, 2015 Q50 Premium, 2017 Q50 Premium, 2018 Q50 Luxe AWD

Re: Fuel pump/fuel filter replacement 2015 Q50

Postby molonlabe » Sat Nov 16, 2019 5:26 pm

telcoman wrote:
Sat Nov 16, 2019 12:09 pm
molonlabe wrote:
Fri Nov 15, 2019 10:35 am
I bought a 2015 Q50 from an car auction and it possibly has water in the fuel tank (no sign of water in the engine). Car does start, but runs very rough, then stops. So my guess is water in the fuel line and/or tank..

How do I drain the tank? Do I have to drop it, or can i use a syphon? 2nd, can I access the tank and fuel pump through the back seat? And can I dry out the pump and filter and reuse it, or will I need a new pump?

Any tips or info anyone can provide would be greatly appreciated..
Follow the steps in the FSM

http://www.nicoclub.com/FSM/G37/Sedan/2013/FL.pdf
Thanks.. Between the service manual, some youtube videos, and some intuition, I took off the back bench, removed both the fuel pump and the sending unit. I used a syphon pump (walmart $8) to remove all the gas, and sure enough, there was a lot of water at the bottom..

cleaned out all the lines, put in new fuel with some marvel mystery oil, and she started right up.. rough for a couple minutes as the fuel rail was getting rid of the old tainted gas, but after a bit, it sounds like a Q50 with 49k miles should.


Return to “Infiniti Q50 / Q60 Forum”