2012 US Spec 5.0 Won’t Start

[M32H32IS]

I’m at 170k miles and it’s a Houston truck so 0 road salt. Loved here it’s whole life, commuted to & from home/school/office by 1st owner. I’m the 2nd owner.

 

[M32H32IS]

Update:

Replaced the starter and NO DICE!

I’d really like to figure this out but I may either sell it or send it to Land Rover indy.

 

[djkaosone]

Try pressing down on the stiff brakes till the point where you think it won't go down any further, push down some more, and then press the button.

 

[ftillier]

you checked the brake pedal switch?

 

[M32H32IS]

you checked the brake pedal switch?

No…

 

[ftillier]

Brake switch has 4 terminals - pin 4 gets constant 12v via a purple/yellow wire, pin 3 is ground via a black wire. Pin 1 is normally open, connects to pin 4 when you press the brake pedal, goes to the ECM and should read 12v when you press the pedal, green/purple. Pin 2 comes from the ECM, is normally grounded, and opens when you press the pedal, blue/red, and should read 0v with the pedal released, 12v with the pedal pressed.

If you pull the connector and want to simulate the pedal being pressed, jumper pin 1 and 4, leave 2 and 3 open.

There's a fuse that protects the 12v line to pin 4, 5A, fues 14P in the central junction box.

 

[M32H32IS]

Good news is, it’s most likely electrical. Put a socket on the crank pulley and it turns easily.

Starter works independently, jumped it with straight 12v B4 install

 

[f1racer328]

Good news is, it’s most likely electrical. Put a socket on the crank pulley and it turns easily.

Starter works independently, jumped it with straight 12v B4 install

Does the old starter work?

 

[jlglr4]

Brake switch and starter relay would be the next things I’d check. Maybe ground wire to the starter just to be sure (even though it looks clean).

 

[M32H32IS]

Jumping the starter relay gets it to click but it’s not moving the flywheel.
Almost like it doesn’t have enough juice to move it.

I can turn the crank by hand though so I know it’s not locked up.