How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Mike V. Your Own Question
Mike V.
Mike V., Nissan Technician
Category: Nissan
Satisfied Customers: 25312
Experience:  Nissan factory trained and Certified Subaru Technician.
2921078
Type Your Nissan Question Here...
Mike V. is online now
A new question is answered every 9 seconds

It won't start. It's turning over. I put a new battery in

Customer Question

It won't start. It's turning over.
JA: Have you checked the battery, particularly the terminal connections? Are they corroded?
Customer: I put a new battery in it
JA: What is the model/year of your Nissan?
Customer: 2005 Altima
JA: Are you fixing your Altima yourself? What have you tried so far?
Customer: Yesterday I left it on and locked the doors with the button thing because it's not attached to the key chain when I came out it wouldn't unlock the doors. So I had to break In to the car. I drove it home the button lock worked but when I went to start the car it won't start
JA: Anything else you want the mechanic to know before I connect you?
Customer: Yes. It's not the fuel pump because it's humming when I turn the key
Submitted: 10 months ago.
Category: Nissan
Expert:  Mike V. replied 10 months ago.

Hello and thank you for your question!
My name is ***** ***** I will be assisting you with your question today.

Customer: replied 10 months ago.
Okay
Expert:  Mike V. replied 10 months ago.

Is the security light on solid or flashing when you crank the engine?

Customer: replied 10 months ago.
No it is not
Expert:  Mike V. replied 10 months ago.

Ok

and the car was running prior to replacing the battery right?
Just want to make sure I understand the situation

Customer: replied 10 months ago.
No. I replaced the battery after the car wasnt starting
Customer: replied 10 months ago.
Also check engine light was on its the oxygen sensor bank one. Not sure if that could have something to do with it. And the fuel pump humms when key turns to on position
Expert:  Mike V. replied 10 months ago.

Ok

Sorry for all the questions but I have to make sure I understand the situation.

Would the engine crank and not start prior to the battery replacement?

How long does the fuel pump hum for when you turn the key on?

Customer: replied 10 months ago.
the engine cranked prior to the battery replacement. And the fuel pump humms for maybe 4-5 seconds
Expert:  Mike V. replied 10 months ago.

Ok,

got it, just normally don't replace the battery when the engine is cranking.

Anyhow, if you can, pull one of the ignition coils, set it next to something metal and crank the engine. You should see some spark jump from the coil to the metal.

Please try this and let me know.

Thanks

Customer: replied 10 months ago.
How do I pull one of the ignition coils
Expert:  Mike V. replied 10 months ago.

Each coil is held in place by a 10 or 12 mm bolt. Remove the one bolt, then pull the coil out. Leave the spark plug in the engine and just pull out the coil.

The other option here is to remove the duct work from the throttle body, then spray some starting fluid into the throttle body. Then crank the engine. If you have spark, it will fire for a few seconds.

Customer: replied 10 months ago.
Okay what is the light that says at check. When I turn the key that comes on.
Expert:  Mike V. replied 10 months ago.

That light should just be a self test for the transmission module.

Also, you said the security light isn't on. Do you know where it is located on this car?

Customer: replied 10 months ago.
It would be on the dash right
Expert:  Mike V. replied 10 months ago.

It is up by the defroster grid for the windshield. On the driver side you should see it blinking when you have the key out of the car. Check it, then see what it does when you turn the key on. It's not where the regular lights and gauges are. But up top so you can see it through the windshield.

Customer: replied 10 months ago.
It doesn't do anything when I turn the key to start. It's just black
Customer: replied 10 months ago.
But blinks red when key is out
Expert:  Mike V. replied 10 months ago.

Ok

I just wanted to eliminate the security system as a possible problem, if it goes out, then it's all good.

You have to try the other testing I gave you to find out what's missing.

Customer: replied 10 months ago.
Okay I need some time for that because I have to go get the right tools.
Expert:  Mike V. replied 10 months ago.

It's ok just post your reply here. I will get it.

Customer: replied 10 months ago.
K it's not that
Expert:  Mike V. replied 10 months ago.

What exactly does that mean?
What was the result of the test and which test did you perform?

Customer: replied 10 months ago.
The ignition coil
Expert:  Mike V. replied 10 months ago.

Ok, but was there spark or not?

Customer: replied 10 months ago.
Expert:  Mike V. replied 10 months ago.

Ok

If it has spark, then it's a fuel problem. You may be hearing the pump come on, but that doesn't mean it's pushing fuel or that the fuel injectors are pulsing to get the fuel into the engine.

At this point you are going to have to try the starting fluid test at the very least, but checking the fuel pressure is also going to be needed it seems. If this is something you can do, then I can tell you how, but it has to be the next step.

Let me know what you want to do.

Expert:  Mike V. replied 10 months ago.

Hello again, since I haven't heard from you, I thought I would check in and see if there was anything else I could do to help?

Customer: replied 10 months ago.
Hi. We figured it out. It was the crankshaft and camshaft sensors.
Expert:  Mike V. replied 10 months ago.

That seems odd, when I asked you if there was spark, you said there was. Spark is driven by the cam and crank sensors.

Related Nissan Questions