5.0 no start

[stretch]

Alright heading down the dreaded no start path. Specs; 5.0 Explorer with A9L/Ron Francis. 4r70w with Us Shift. Been running great.

Left the Acc key on all night. Battery was dead, now charged. Cycle the key on brake light comes on, fuel pump cycles then nothing. No click just quiet. Thoughts? Where to start?

 

[jamesroney]

Alright heading down the dreaded no start path. Specs; 5.0 Explorer with A9L/Ron Francis. 4r70w with Us Shift. Been running great.

Left the Acc key on all night. Battery was dead, now charged. Cycle the key on brake light comes on, fuel pump cycles then nothing. No click just quiet. Thoughts? Where to start?

Is it in Neutral?

Any power to the S terminal on the starter relay when the key is in the Start position?

Your thread title is incorrect. You do not have a "no start" condition (yet.)

You have described a "no crank" condition. No crank is totally different than no-start.

Let's get you cranking!

 

[stretch]

Ok no crank. Confirmed in park. No power to the S terminal in crank or run.

 

[Broncobowsher]

Aftermarket harness, check the fuses.
Maybe neutral start switch? Hold the brake, hold the key in start, cycle the gear shifter up and down once.
At this point you just need to chase down the start circuit between the key and the solenoid.

 

[bax]

jump the start solenoid and see if it cranks.

 

[stretch]

Alright, it runs. Thanks for everyone’s advice. Turned out to be the start relay on the harness. This got me to looking at the other relays, and they all appear to be of off-shore make. Switched them all over to Bosch.

 

[DirtDonk]

Keep any of the known good ones as spares though.
Unless you have extra new ones.

Just out of curiosity, does it say where the new ones are produced? I’m sure even Bosch has some of their stuff made overseas, but I bet relays are made here in the US in some cases like Hella does.