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Cranks but won't start. How do I check. 2009 titan se flex.

Customer Question
Cranks but won't start ...

Cranks but won't start

Mechanic's Assistant: Have you checked the engine's fuel supply? And the spark plugs -- are they all working?

How do I check

Mechanic's Assistant: What is the model/year of your Nissan?

2009 titan se flex

Mechanic's Assistant: Are you fixing your Titan yourself? What have you tried so far?

I cycled the key and heard the fuel pump kick on. I've jump started it and it stayed running so,I ruled out the alternator, I've swapped relays thinking maybe ecm

Submitted: 1 month ago.Category: Nissan
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Answered in 1 minute by:
1/1/2018
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago
Mechanic01
Mechanic01, ASE Certified Technician
Category: Nissan
Satisfied Customers: 2,056
Experience: Owner at Baltic investments
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Hello my name is ***** ***** welcome to just answers! I will be assisting you with all of your vehicle questions today. Give me one moment while I review your question and come back with a answer. Please be aware I do not know your skill level or abilities so I will be asking a lot of questions and in a lot of cases we will respond to each other quite a lot before we find a solution. As far as phone calls are concerned that is the system prompting you, not me, and they do cost more money, I prefer text but in some cases a phone call is required. If I don’t answer right away or quickly in conversation I am helping another customer or have stepped out for a moment and will respond as soon as I can. Ok lets get started!

Is there a security light on in the dash?

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Customer reply replied 1 month ago
When I open the door it flashes, it does not stay on
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

so we need to check fuel pressure and spark at the plugs next, have you dont that?

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Customer reply replied 1 month ago
No
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

ok do that and let me know what you come up with

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Customer reply replied 1 month ago
Tried starting fluid, no start
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

ok how did the checks go?

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Customer reply replied 1 month ago
How do I check spark plugs
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

it requires a bit of automotive knowledge to not get hurt doing that, theres a lot of videos on YouTube that show you how, if your not comfortable I would have someone help you so you dont get zapped

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Customer reply replied 1 month ago
No spark
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

do you have a check engine light on?

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Customer reply replied 1 month ago
Not at the moment. It comes on intermittently
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

ok so there will be some stored codes we nood to have the truck scanned for them to see whats going on, do you have access to a scanner?

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Customer reply replied 1 month ago
I've hooked it up yesterday and it said it didn't have any codes. But the times I have had the light on and hooked it up it,gave the code,for random misfire
Customer reply replied 1 month ago
Ive been taking my battery out every night because my truck hasnt been starting in the cold so it might be resetting the computer I,don't know
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

so you more than likely have a cam or crank sensor issue those tell the computer to tell the coils to fire, and are a common issue with these, without an oscilloscope you wont be able to read the waves but you can check resistance at the sensors to see if they are ok

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Customer reply replied 1 month ago
Do I just remove sensors and check for resistence with multimeter?
Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

yes and resistance on these is 0, I would unplug them and see if you can get it to start

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Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

also check wiring and connectors for issues

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Nissan Mechanic: Mechanic01, ASE Certified Technician replied 1 month ago

hows it going?

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