Will not start after installing new radio

150,000 MILES • 5.9L • V8 • 4WD • AUTOMATIC
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DRYDOCK1978
  • MEMBER
  • 1 POST
Put a new radio smelled something shut truck off. Started to drive in the morning and shut off will not start. Codes p0171, p0455, p0442 and p0420.
May 20, 2020 at 3:13 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

Does the engine crank over?

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

https://www.2carpros.com/articles/car-battery-load-test

Can you hear the fuel pump run when you turn the key to the on position?

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

Did you check for spark?

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

As far as the codes, the 420 is a bad catalytic converter.

I attached possibilities for the other codes below. None of them are related to no start.



Roy
May 20, 2020 at 8:35 PM
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