Engine turns over but won't start.

MPUSCAS

MEMBER
2009 NISSAN ALTIMA
63,000 MILES

As if no gas at all. Should I hear the fuel pump before start? I can't hear it. Can the engine be flooded? This happened suddenly.

Tuesday, December 27th, 2011 AT 5:50 PM

5 Replies

SATURNTECH9

MECHANIC
30,869 POSTS

This sounds like the crankshaft angle sensor or the fuel pump has gone out, when you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds? These guides should help us fix it.

https://youtu.be/dCjmRL3p4Cs

and

https://www.2carpros.com/articles/car-cranks-but-wont-start

Also, lets run the codes to see what come up.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down these guides and report back.

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Sunday, April 25th, 2021 AT 1:25 PM

MPUSCAS

MEMBER
2 POSTS

Thanks. It was the crankshaft sensor started right up.

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Sunday, April 25th, 2021 AT 1:25 PM

SATURNTECH9

MECHANIC
30,869 POSTS

Best thing to do if the engine is flooded is hold the gas pedal all the way to the floor while starting it. Take to a auto parts store like auto zone and have it scanned for codes let me know the exact code numbers you have not code descriptions.

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Sunday, April 25th, 2021 AT 1:25 PM

DONNA GILLIS

MEMBER
1 POST

My car wont start I have a 2001 nissan altima my car was running fine until the other day I was driving and my car decreased speeds from 60 mph to 40 I made it home I did a oil change changed the oil filter and fuel filter and all 4 sparkplug and that made the car run good again then I was going to go back in town again my car died thank god I live on a hill to rol the car back in the driveway I checked my spark and fuel flow even replaced the mass air flow and my car still wont start does anybody have idea what it could be

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Sunday, April 25th, 2021 AT 1:25 PM

KEN L

MASTER CERTIFIED MECHANIC
47,240 POSTS

Hi Donna,

When The engine stalls can you hear the fuel pump in the gas tank running and is the security light flashing? This guide will help us get started.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please run down this guide and report back

Cheers, Ken