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My truck will not start,i have replaced the fuel pump in in…

Customer Question
My truck will not...

My truck will not start,i have replaced the fuel pump in in tank,an the pcm an checked all fuses an relays power is getting to the pump after 5 seconds it turns off

Mechanic's Assistant: How many miles are on the car? Has the car been starting normally?

143th

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

2002 3.3l frontier two wheel drive

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

Yes

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Yes i checked everything an it should start

i also used the obd ii scan tool an the only codes i got were po463 an po183 this would not stop the engine from running would it?

Submitted: 10 months ago.Category: Nissan
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Customer reply replied 10 months ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call.
Customer reply replied 10 months ago
Let me know if you need more information, or send me the service offer(s) so we can proceed.
Answered in 3 hours by:
9/28/2017
Nissan Mechanic: Jake, Nissan Technician replied 10 months ago
Jake
Jake, Nissan Technician
Category: Nissan
Satisfied Customers: 4,664
Experience: Experienced automotive repair technician, Pulaski Tech graduate and DSM hobbyist.
Verified
Hey there, thanks for the question. Are you checking fuel pump voltage when turning key to ON or while cranking the engine? Because it's normal with key on to get power for a few seconds then go away, but should have continuous power when cranking.
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Customer reply replied 10 months ago
that is right.but my engine still wont start
it get 12volts it doesnt pressure up .which electronic part would stop the fuel pump from pressuring up
Nissan Mechanic: Jake, Nissan Technician replied 10 months ago

nothing would, if you have continuous 12volts when cranking then it should have proper pressure otherwise the pump is failed.

now if your losing power to the pump when cranking then the distributor is bad, because the cam sensor inside the distributor is what sees the engine turning and tells the pump to keep running.

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Nissan Mechanic: Jake, Nissan Technician replied 10 months ago

If you need anything else let me know. If not please leave a kind rating.

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