HELP...1992 jf80 went swimming

[BILT4ME]

It runs when you spray in starter fluid.

That tells you that there is ignition but not fuel.

No fuel in this case will be electrical because it was under water. Check and clean all relays and harness connections and ECUs per @jonheld instructions.

He is THE MAN on the 3FE trucks.

Follow what he says EXACTLY and you'll
Get it going quickly.

No, there's not water in the gas tank.

Definitely change fluids in the transmission, transfer case, and F/R differential because I guarantee those all have water due to breather location.

After its running you eilw have to do front wheel bearings because sitting under water that long and going in hot, the water cools it down and it sucks in water through the seals into the wheel bearings.

Make the boys do the work and make them earn the money to pay for the seals and their ignorance.

 

[White Stripe]

As mentioned disconnect all electrical connections that were under water and dry them out.

 

[cbpeck]

Sorry to say, but your roof is all dented up from him standing on it. Ask me how I know.

 

[bigredmachine]

youll also want to change your oil as well

 

[White Stripe]

Guys How would water get into the fuel tank?

If he has a bad gas cap.

 

[gnarlytoes]

Clean and dry air flow meter and connector.

 

[Ten4GoodBuddy]

Working on disconnecting all electric connections, drying and cleaning them, as we speak.

Pulled the ECU and guess what...half full of water. I’m guessing that’s my issue.

 

[BILT4ME]

Need one of these?

https://www.amazon.com/Sustainable-...ocphy=1017588&hvtargid=pla-445685971404&psc=1

 

[Ten4GoodBuddy]

Need one of these?

https://www.amazon.com/Sustainable-...ocphy=1017588&hvtargid=pla-445685971404&psc=1

That doesn’t look like the ECU that I pulled offf the truck, but it might work

 

[customcruiser]

I'd throw there phones into the pond

 

[gnarlytoes]

That doesn’t look like the ECU that I pulled offf the truck, but it might work

It is used to flash the ECU of the responsible party.

 

[cody c]

Im thinking it's a "water in the fuel" issue too.

Perhaps pull a plug or two at the front, turn it over and see what it pushes out, if its a mix of fuel and air, then I'm wrong. If it's just air, then you have probably an electrical issue, relays/fuel pump etc. If its water and air, then the tank has pulled water into it, and is pushing it through from the bottom of the tank. Dump fuel and refill it.

Simple to do, for a fair bit of direction/diagnosis.

 

[ccslider]

Dielectric grease is your friend. Use it after the connector has been dried out.

 

[Woofythewolf]

"I did notice that one of the washers on the banjo bolts for the fuel filter didn’t get put back on, which would make me think that fuel would have been coming out at the filter when attempting to start but wasn’t... so is fuel not getting up to the filter???"

I think that's your ticket. Check for 12v and ground at the actual pump, I don't think you're getting fuel pressure.

Just to be sure, crack it loose with the ignition on (keep a fire extinguisher for the exceedingly slim chance it sprays onto an electrical connection) and see if it sprays fuel everywhere.
Also be sure to wear safety goggles, not just glasses when doing this.

 

[ccslider]

"I did notice that one of the washers on the banjo bolts for the fuel filter didn’t get put back on, which would make me think that fuel would have been coming out at the filter when attempting to start but wasn’t... so is fuel not getting up to the filter???"

I think that's your ticket. Check for 12v and ground at the actual pump, I don't think you're getting fuel pressure.

Just to be sure, crack it loose with the ignition on (keep a fire extinguisher for the exceedingly slim chance it sprays onto an electrical connection) and see if it sprays fuel everywhere.
Also be sure to wear safety goggles, not just glasses when doing this.

Did you read the thread? He said he had his ecu full of water....

 

[Woofythewolf]

He said he can hear the injectors clicking though. That would indicate it is still working.

Besides, he let it dry out for a week before he even tried starting it. Water only shorts turned on electronics, or by corrosion. You can wash your keyboard in the dishwasher without any harm, despite the common "water is bad for electronics" stigma. You just have to let it dry out before you turn it on.

Edit: now I suppose its possible only parts of the ecu are working. But I find that unlikely.
Edit2: And re-read his first post. It ran for 10 seconds before sputtering out and dying. IMHO that was the last of the fuel pressure in the rail.

 

[jonheld]

He said he can hear the injectors clicking though. That would indicate it is still working.

Besides, he let it dry out for a week before he even tried starting it. Water only shorts turned on electronics, or by corrosion. You can wash your keyboard in the dishwasher without any harm, despite the common "water is bad for electronics" stigma. You just have to let it dry out before you turn it on.

Edit: now I suppose its possible only parts of the ecu are working. But I find that unlikely.
Edit2: And re-read his first post. It ran for 10 seconds before sputtering out and dying. IMHO that was the last of the fuel pressure in the rail.

You're making some pretty big assumptions here. I would hazard a guess that the ECU was on when they drove into the water. There is also a significant difference between pond/stream water and tap water. I know this first hand. THe corrosion is swift and severe due to the amount of minerals. It is highly conductive.
I made the mistake of leaving my truck at a shop with an idiot who let it sit. I payed for that mistake for the next few years. It's the gift that keeps on giving.

 

[clx16]

Your distributor doesn't love dirty water either...

Might remember the fuel, air , spark requirements for a running engine.

For the ECU you should get some 99% isopropyl alcohol to soak it in for a good bit an dry out.

You now have a leaky roof as your kid broke the seals to the already rust hiding roof rack.

You might want to get that off and fixed.

Your kids have so much work to do maybe it will inspire them to build and have their own project cars.

Make sure that oil gets changed

 

[Ten4GoodBuddy]

You're making some pretty big assumptions here. I would hazard a guess that the ECU was on when they drove into the water. There is also a significant difference between pond/stream water and tap water. I know this first hand. THe corrosion is swift and severe due to the amount of minerals. It is highly conductive.
I made the mistake of leaving my truck at a shop with an idiot who let it sit. I payed for that mistake for the next few years. It's the gift that keeps on giving.

He said he can hear the injectors clicking though. That would indicate it is still working.

Besides, he let it dry out for a week before he even tried starting it. Water only shorts turned on electronics, or by corrosion. You can wash your keyboard in the dishwasher without any harm, despite the common "water is bad for electronics" stigma. You just have to let it dry out before you turn it on.

Edit: now I suppose its possible only parts of the ecu are working. But I find that unlikely.
Edit2: And re-read his first post. It ran for 10 seconds before sputtering out and dying. IMHO that was the last of the fuel pressure in the rail.

I replaced the washer and checked for fuel pressure with the line off and had fuel spraying out. Then pulled the ECU and had water in it.

 

[Scrapedknuckles]

Pull the distributor cap and dry/clean everything.