After starting my truck i sometimes have to wait several seconds before i am able to shift from park.
Could be the Shift interlock solenoid or the shift interlock circuit ( or the fuse for it )
The shift interlock is on the same switch as the Brake Pedal Position switch, it is on the side of the brake pedal, usually has a yellow c-clip retainer on it.
Start by checking the fuse with a meter for power on both pins on the back of the fuse. The fuse is #16.
If the fuse has power on both sides, next check for power at the shift interlock circuit on the switch on the brake pedal.
The circuit is Fuse #16 to a Tan w/ Red stripe wire to the shift interlock switch to a pink w/ light green stripe wire. When the brake pedal is pushed down power should be on both sides of the switch.
If you have power to both sides, I would say the shift interlock solenoid is the issue ( located : steering wheel column ).
If this is a flow through console, the shift interlock circuit also feeds the floor shifter.
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