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Will not start

Tiny
JEEPGIRLBETHANY
  • MEMBER
  • 2007 JEEP LIBERTY
  • 3.7L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
Stalled out completely while going up a hill the etc light came on and stays on. Put a new battery in and turned over once and would not start again. It turns over but will not fire. Replaced the crank shaft sensor and cam sensor but still will not fire.
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Friday, May 18th, 2018 AT 8:25 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

You need fuel pressure, spark and compression to run.

When you crank the engine to start, see if the tachometer goes up on the numbers. That will tell us if the crank sensor is sending a signal to the PCM.

Fuel pressure should be tested to verify the fuel pump is working. Can you hear it run when you turn the key on?

Roy

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

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-an-ignition-system
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Friday, May 18th, 2018 AT 9:12 AM

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