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Ask Mike V. Your Own Question
Mike V.
Mike V., Nissan Technician
Category: Nissan
Satisfied Customers: 23848
Experience:  Nissan factory trained and Certified Subaru Technician.
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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: 2 months ago.
Category: Nissan
Expert:  Mike V. replied 2 months ago.

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

Customer: replied 2 months ago.
Okay
Expert:  Mike V. replied 2 months ago.

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

Customer: replied 2 months ago.
No it is not
Expert:  Mike V. replied 2 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 2 months ago.
No. I replaced the battery after the car wasnt starting
Customer: replied 2 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 2 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 2 months ago.
the engine cranked prior to the battery replacement. And the fuel pump humms for maybe 4-5 seconds
Expert:  Mike V. replied 2 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 2 months ago.
How do I pull one of the ignition coils
Expert:  Mike V. replied 2 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 2 months ago.
Okay what is the light that says at check. When I turn the key that comes on.
Expert:  Mike V. replied 2 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 2 months ago.
It would be on the dash right
Expert:  Mike V. replied 2 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 2 months ago.
It doesn't do anything when I turn the key to start. It's just black
Customer: replied 2 months ago.
But blinks red when key is out
Expert:  Mike V. replied 2 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 2 months ago.
Okay I need some time for that because I have to go get the right tools.
Expert:  Mike V. replied 2 months ago.

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

Customer: replied 2 months ago.
K it's not that
Expert:  Mike V. replied 2 months ago.

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

Customer: replied 2 months ago.
The ignition coil
Expert:  Mike V. replied 2 months ago.

Ok, but was there spark or not?

Customer: replied 2 months ago.
Expert:  Mike V. replied 2 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 1 month 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 1 month ago.
Hi. We figured it out. It was the crankshaft and camshaft sensors.
Expert:  Mike V. replied 1 month 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.