Truck starts only every couple of hours?

47,000 MILES • 5.9L
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KHOBBY24
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I have replaced the crank shaft sensor and the cam shaft sensor because the codes it is throwing, why is this?
Mar 29, 2023 at 5:01 AM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,388 POSTS
Diagnostic fault codes never say to replace a part or that one is bad. They only indicate the circuit that needs further diagnosis, or the unacceptable operating condition. When a sensor or other part is referenced in a fault code, it is actually the cause of that code only about half of the time.

What are the exact fault code numbers you found? What are the symptoms when the "no-start" occurs? Does the starter crank the engine? This can be hard to tell, but can you hear the hum of the fuel pump for about one second after you turn on the ignition switch?
Mar 29, 2023 at 9:27 AM
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