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Sep 3, 2009 | 06:04 PM

kevin.tran

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From: CA/WA

help please

I'm sitting in a parking lot waiting for the tow truck. I was sitting at a light it turned green I proceeded to move forward than 30 seconds later my car jus died on me cruised to a stop put it in Parked tried turning it back on it'll turn on and than will die. any help would be apperiated

Sep 3, 2009 | 06:21 PM

mD5

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From: Fort Walton Beach, FL

is it a weak start? check the battery terminals? maybe alternator is bad and not charging the battery properly? need more information, whats it do when you try to start it. how long does it stay running?

Sep 3, 2009 | 06:25 PM

kevin.tran

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From: CA/WA

it starts like normal but than dies right after...strong start but jus dies when its suppose to stay on. the first thing I did was check to battery everythings tight I could get lik a quick second rev that's it

Sep 3, 2009 | 07:06 PM

carbongs

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From: ga

alternator? that is what is sounds like to me

Sep 4, 2009 | 12:30 AM

GS4_Fiend

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try disconnecting the MAF sensor and see if it starts.

Sep 4, 2009 | 12:37 AM

masagsxr

Lexus Test Driver

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From: CA

Yeah.. sounds like the alternator... Car can't run just on battery alone unless its brand new.. Even with that, It wouldn't last long. Car has to run above 14v

Sep 4, 2009 | 07:44 AM

FrankT

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From: Mountainair, NM

Quote:

Originally Posted by masagsxr

Yeah.. sounds like the alternator... Car can't run just on battery alone unless its brand new.. Even with that, It wouldn't last long. Car has to run above 14v

Yes, the car can run on the battery alone.

The ECU needs at least 10 volts to run the fuel injection with a low amp draw.
14 volts is the output the alternator has when the battery falls below 12.7 volts.
Typical alternator output on a 12.7 battery is around 13.4 volts.

I would be looking at the MAF sensor or intake tube.

Good Luck