wont start

[blockvalve]

after a heavy all day rain, the 99 - 7.3 wouldnt start. found water in the drivers floor board. had the truck towed to diesel mechanic. replaced a burnt up starter, replaced dead batteries, replaced the neutral safety switch. the only way we can start the truck is by jumping across the selanoid. please advise

[stump0331]

bump for the techs

[vitalidle]

If your jumping across the solenoid and its starting I would suspect its in your starting circuit somwhere. Check your fuses to the ignition.

[rankroddin250]

WOW water usualy wond do that I wonder if your truck got struck by lightning? either that or your tech is just replacing parts trial and error style but i would check the ignition fuse in the glove box, could be the ign sqitch its self or a bad starter selenoid.

[vitalidle]

Also if you jumping across the two large terminals and its starting then the solenoid is probobly bad. Jump it from the pos side of your battery to the primary side of the solenoid and see what happens. Use a good jumper wire. If it starts the solenoid is fine.

[vitalidle]

Yeah what rankroddin said as a matter of fact I would check all your fuses first.

[fyreman]

I don't know what all the water could do, but I had a problem with my 99 not starting. I bought new batteries, bought a new starter, but before puttin' on the starter, I tried crossing the solenoid and it cranked. So I replaced the solenoid on the fender and the problem was solved.

Don't know if it could be that easy for you, hope so.

[josh302]

Originally Posted by blockvalve

after a heavy all day rain, the 99 - 7.3 wouldnt start. found water in the drivers floor board. had the truck towed to diesel mechanic. replaced a burnt up starter, replaced dead batteries, replaced the neutral safety switch. the only way we can start the truck is by jumping across the selanoid. please advise

2000 7.3 psd 4x4

I have the exact sam problem!!! Some as$hats tried to run my truck thru a car wash, broke the sunroof bezzel, after a rain water filled the floor board/drivers side.

Will not turn over.

1. all fuses good
2. will start if I jump the solinoid on the passenger side(no power to the small wire when ign sw is turned)
3. power is coming out of the ign sw on the steering column
4. no aftermarket alarm system

Is there a factory starter interupt?
does the starter wire run thru the pcm or bcm?

When the truck got rained on, it was turning over on its own randomly(key off), so I disconected the batteries and waited for it to dry out. reconected the batteries, started fine, later that day, no turn over.

[vitalidle]

If you have to jump the solenoid then its probobly bad. Do you hear it clicking when you turn the ignition key.

[josh302]

Originally Posted by vitalidle

If you have to jump the solenoid then its probobly bad. Do you hear it clicking when you turn the ignition key.

not solenoid, read my post above, it gets no power to the small wire when the ign sw is turned to the start position.

its somwhere between the ign sw and the solenoid