P1633 fault code after flood
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New User
Joined: Jun 2008
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P1633 fault code after flood
My 00 v-10 was in a recent flood and completely underwater . I drained all the fluids and replaced them and let it set for about a week. I got it to run and it sounded fine. It ran for a good thirty mins and when I went to move it around our building, i hit a bump and it died. I cant get it to fire now. It is reading a p1633 code and when i erease it, it shows that it is still there. I noticed that the theft light stays on dim all the time and when you turn on the ignition, it gets brighter for 4-5 seconds and then goes back to dim. I done some research and found that the code is "keep alive low voltage" I was told to check pin 55 (red/white) at the PCM and I did it is reading 12.4.
Do you think I am looking in the right direction,..........what should I try
Thanks
Do you think I am looking in the right direction,..........what should I try
Thanks
Elder User
Joined: Aug 2005
Posts: 917
Likes: 1
From: Fort Lauderdale, Fl
Intermittent... the circuit board is probably starting the corrosion process and some of the components are loose, caps, ics, diodes, etc.... so that bump probably loosen them up more. So Monsta is more than likely right, you'll need to replace or you can open them up and clean the circuit board with a tooth brush and acetone and resolder the joints. If you get it early you'll probably able to save the board b4 it starts to absorb the water. GL!
More Turbo
Joined: Apr 2008
Posts: 649
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From: Cottageville, WV
Didn't we just have a thread on the fuel shutoff switch when someone hit a speed bump? I would reset that first.
https://www.ford-trucks.com/forums/7...led-my-ex.html
https://www.ford-trucks.com/forums/7...led-my-ex.html
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Joined: Jun 2008
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Didn't we just have a thread on the fuel shutoff switch when someone hit a speed bump? I would reset that first.
https://www.ford-trucks.com/forums/7...led-my-ex.html
https://www.ford-trucks.com/forums/7...led-my-ex.html
already checked that thanks though
Elder User
Joined: Jun 2008
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From: Iowa
I have had some experience with flood cars in the past. Waterproof connections usually are not up to submersion in automotive.... strip the harness, clean with electrical contact cleaner, reassemble with dielectric grease. do every single one, engine included. Try it repeatedly until you get it.... could be a long process, worst 2 I ever did was a 1994 corvette and a Cadillac Allante? the imported one used in a movie dropping out the back of a cargo plane... both were difficult to diagnose.
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More Turbo
Joined: Apr 2008
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From: Cottageville, WV
Have you checked the battery terminals and made sure they are corrosion free and tight? Check the body grounds.
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New User
Joined: Jun 2008
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Yes all that is fine, I just towed it to the mechanic and he said he dropped the tank and cleaned it along with the lines and it fire up. So far it is running
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New User
Joined: Jun 2008
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simple, we only had libility on the vehicle. I know that It will have problems but I will have to cross that poath when it happens
Posting Guru
Joined: Apr 2003
Posts: 1,089
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From: Michigan
That sucks, kinda makes whatever $ you saved in insurance moot now....
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