Symptoms: Truck started up and ran fine in the morning. I drove to the store and was inside for about 15 minutes. When going to leave I turn the key on then turn it forward... nothing. No engagement of the starter whatsoever. Cycle on and off and no change.
Here's the code my DashDaq pulled:
P242E: Exhaust Gas Temperature Sensor Intermittent/Erratic Bank 1 Sensor 3
And here's the behavior of the sensor that caused it:
After your truck throws the code it will put you in a 1 hour no start condition. No cycling of the key will turn the truck on. Here's how you bypass the hour lockout: (Big thanks to Big Angry Hillbilly's thread
Set the parking brake.
Turn the truck to the on position.
Ensure the truck is in park.
Pop open the hood.
On the back (towards windshield) of the passenger side battery box there is a wire with a black plastic cylindrical part in line.
Depress the two sides of the ring on it to separate the two ends.
Touch the male pin to your positive battery terminal and your truck will start.
Reconnect the wire.
That afternoon I ordered a new sensor from River City Diesel. I ordered it at 5:00 pm and it was delivered at 9:00 am the next morning, no joke. That was standard shipping, too.
The sensor you need is here.
River City has it for $57.27.
Here's the old sensor next to the new. Fortunately mine came out without much trouble.
And here is now the temperatures look now:
Hope this helps.