timmdevries

So I'm sitting in a parking lot with a dead truck. Here is what's happened. This morning after work, it didn't crank. Turned the key and got clicks from the relay but no crank. I assumed the battery had died, so jumped it with a charger/booster. Took a second but it fired. Drove to a store, came out and the same thing happened. Tried jumping it off a booster pack and another car with no results.

So far I've found this...
Starter will spin with the booster pack directly to it
Starter signal wire is not getting any voltage to it.
Checked all the fuses that could be involved, all seem good
Switched the relays around with no results
Battery is less than a month old, shows 12.2 volts

What's my next step here?

timmdevries

Also, tried a second key, the security light is flashing normal speed with the key off, on for 3 seconds when trying to start then off

techrep

iTrader: (1)

replace the battery

timmdevries

Swapped in a known good battery, no change

18_F-150_XLT_Screw

iTrader: (1)

Starter solenoid going bad?...other things to think about/try... Put it in neutral to see if it will crank.... Could be the transmission range sensor, make sure that's plugged in good....

homer

I always bring this up, but... did you check the starter solenoid wire by the battery? There is a connector there and it's known for corroding. It's a wire by itself and a black twist connector. Typically when you crank you hear "click" only once, then "click" when releasing from the starter relay. Not repeated clicking though !

I've posted it here:

https://www.f150forum.com/f4/truck-w...urface-179357/


Worth a look anyways?

deliverance

I suddenly had a no start issue about a year ago and the power wire at the starter was so corroded that when I went to take it off and clean it broke off completely.

techrep

iTrader: (1)

Short to ground....corroded ground wire