Engine Starts then stalls after a few seconds

Tiny
ERNESTADIEZE
  • MEMBER
  • 2003 CHEVROLET IMPALA
  • 3.4L
  • 6 CYL
  • AUTOMATIC
  • 130,000 MILES
Good day guys,
Please I am finding it difficult to use the car. The engine will start then go off after three to four seconds. Called in a mechanic and he said the fuel pressure is low. After troubleshooting, he came up with the conclusion that the fuel pump is faulty and needed to be replaced. After replacement we are still back where we started.
At first the security light was on then with the help of some YouTube videos, I was able to reset it.
now I do not have a security problem, but the car still will not hold steam.
Kindly assist.
I believe you guys can help me.
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Saturday, March 4th, 2017 AT 8:05 AM

1 Reply

Tiny
KEN
  • ADMIN
Hello,

This sounds like you have a crankshaft angle sensor that is going bad, When the engine stalls can you check it for spark, please follow this guide

https://www.2carpros.com/articles/how-to-test-an-ignition-system

and

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Please let me know if you need anything else to get the problem fixed.

Best, Ken
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Monday, March 6th, 2017 AT 10:26 AM

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