Truck wants to start on the first ignition turn 5.3

[Lukas washburn]

Rebuilt motor started putting things together tried cranking motor over and wanted to to start on first turn of ignition but full turn doesn’t do anything?

 

[ORVietVet]

Welcome to the forum, from Oregon.

Ignition switch in column. Very easy to get to and replace.

In the future, please supply all truck info. There are a lot of 5.3 engines in a lot of "trucks".

 

[stutaeng]

It cranks when you turn it to the accessory (ACC) position?!

 

[ORVietVet]

There is actually 2 stages before you crank the engine and are turning against the spring load. The second step would be accessory. The first step just unlocks the steering wheel. Are you saying the dash lights up and the engine cranks, when you move the key from the lock position?

@Lukas washburn, is each and every single 1999 thru 2006 truck with a 5.3 engine, the exact same thing? Since it is not, please supply truck info. Or is it a secret?

OR, are you a one and done and not posting anymore?

 

[tmpass]

when i swapped the motor in my 07, not having all the grounds connected caused very odd cranks... truck wouldn't run without the headlights on, then it wouldn't shut off without turning off the lights... ignition key did not always operate correctly... dash and displays did not operate correctly headlights dim on passenger side, normal on drivers side

finally found one ground that i had missed was disconnected on the passenger side bell housing,

That was the only one i missed and it wreaked havoc.