ECUs are tough, starter motors are weak - Defender Source
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  #1  
Old July 6th, 2010, 06:57 PM
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Daniel Marcello
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ECUs are tough, starter motors are weak

Went wheeling in Pine Barrens at 2am this past weekend and decided to follow Jarek into a nice deep water hole. He floated half way with his huge 37" and rear locker. I had a girl with me who I had to impress.... 30 seconds later we are stuck in about 4 feet of water. Truck fills up quick obviously and was waist deep in some of the nastiest swamp water i've ever seen. Jarek pulls me out and we get the truck started again but only running on 6 cylinders, so we wait to see if it dries out. Nothing changes so we press on.

Truck dies, I try to crank it and it is hydro-locked and the force of it is so strong that it splits my starter motor! We also notice that the fuel pump stays on so it smells of gas so we pull the rollover switch to kill it. Tow it back to the camp ground and drink beers and laugh.

Wake up next morning, Eric pulls the ECU and dumps the swamp water out of it. We split the ECU and let it sit in the sun for 2 hours to dry out. Pull the plugs and tow the truck in gear to shoot all the gas out of the cylinders. Pull the starter motor and see its split.

Put the plugs back in, put the "dry" ECU back in and tow jump start it. Drive home 3 hours without a hick-up. I am drawing a code 36 which is injector bank B which is right or left side, middle or outside? anyone know?
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  #2  
Old July 7th, 2010, 08:44 AM
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Jason England
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36 Fuelling fault in offside injector bank
As above but for cylinders 2-4-6-8 only. Valid for cat cars only.
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Old July 7th, 2010, 10:46 AM
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Unfortunately we didnt get any good pics or videos.. this is the only thing I grabbed..



That was taken a good minute after he was out of the hole, water was still rushing out
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Old July 7th, 2010, 11:15 AM
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Charles Galpin
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Quote:
Originally Posted by ini88 View Post
I had a girl with me who I had to impress....
Oh boy, nothing good can come of this...
Quote:
Originally Posted by ini88 View Post
Truck dies, I try to crank it and it is hydro-locked and the force of it is so strong that it splits my starter motor!
From your description it was running before this, so how could it have been hydro-locked after running for a bit beforehand?
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Old July 7th, 2010, 11:24 AM
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Daniel Marcello
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Charles, no idea how it happen. it was running and bouncing down the trail as only half or so cylinders were firing, then it died. but I think the injectors were still pushing gas through because we could smell it. I don't know if it was a result of the ECU being underwater that made the gas run or not. all I know is it hydro-locked and when i tried to crank the started snapped.

Thanks Jason, so passenger side injectors are bank B? I will look at them tonight.
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Old July 7th, 2010, 02:51 PM
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Is there anyway I can get on this on the fly trail driving list you guys have? I was just down in Wharton state park kayaking and drove the battlewagon down there on the 4th.
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Old July 7th, 2010, 04:49 PM
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Daniel Marcello
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Is there anyway I can get on this on the fly trail driving list you guys have? I was just down in Wharton state park kayaking and drove the battlewagon down there on the 4th.
sure! send me your email. daniel . marcello @ gmail.com
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Old July 7th, 2010, 05:46 PM
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Jason England
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Thanks Jason, so passenger side injectors are bank B? I will look at them tonight.

If that is where cylinders 2 4 6 8 live ... the offside rule is confusing because it changes when a car is LHD or RHD ... but referring to Bank B which starts with cylinder 2 makes sense.

I'll come wheeling as soon as I'm confident in my truck ... ;-)
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Old July 8th, 2010, 05:55 PM
rmuller
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passenger side is 1 3 5 7 (at least on my disco's 4.0)
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