My truck won't start after a while.

[Monster_454]

My 2000 GMC Sierra 7.4l K2500 will run awesome in the mornings. It starts right up, but as I drive it throughout the day, it takes longer and longer to start up. I've changed the relays, fuel pump, fuel filter, and the fuel pump regulator. I don't know what else to change.

[adamhoude88]

Heard of issue with coolant temp sensor and air intake sensor not communicating properly. So the ecm may think the difference is to high or the coolant temp is to high causing a no start

 

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