V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

engine cranks but wont start or stay started

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Old 05-05-2013, 03:18 PM
  #1  
coreyc7771
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Location: west virginia
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Exclamation engine cranks but wont start or stay started

i have a 95 mustang v6 3.8. engine turns over but wont start or if it starts it dies 2 sec later. i replaced the fuel pump about 2 months ago and the spark plugs and wires. just went and got a new battery yesterday. it acts like it aint getting enough gas or too much gas. so if any ideas plz let me know asap. thank you.
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Old 06-11-2013, 07:06 AM
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petrock
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Start with the basics. Make sure the battery is fully charged. Have the alternator tested (it is what keeps the car running after it starts). Get a spark tester and make sure you have spark. Rent a fuel pressure gauge and make sure your getting enough fuel pressure. Rent a noid light kit and make sure the fuel injectors are being commanded on. Rent a compression tester and make sure all cylinders compression is within 10% of each other.

The answers to those tests will help determine where to go next in diagnosing & fixing the problem. None of the tests will make a definitive answer. They are tools to guide you to the problem/solution. Good luck...
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