2007 Nissan Truck wont start when cold

2007 NISSAN TRUCK
120,234 MILES • 4.0L • V6 • 4WD • AUTOMATIC
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ROY1940
  • MEMBER
  • 2 POSTS
when the weather gets down in the 20s the engine cranks over good but wont start but you can hook up a battery charger and set to boost and it well start I ve changed the plugs and the crank sincor change the battery
Dec 25, 2013 at 10:38 AM
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CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
Have you checked for fuel pressure? Try a squirt of starting fluid. If the engine runs on that for a few seconds, the fuel pump body may be warping and stalling the motor.

If the fuel pressure is correct, and the engine starts on starting fluid and stays running, the best suspect is an incorrect reading from the intake air temperature sensor. If it reports a temperature that's too high, not enough fuel will enter the engine for easy starting.
Dec 25, 2013 at 10:43 AM
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