Anyone have water leak into fuse block and E.C.M. ? What symptoms can result?

 

Well, that is not a good thing as water and electricity typically dont mix well.

You have a range of possibilities from "absolutely nothing" to "full electrical failure." You can have an assortment of glitches but my guess is that the ECM is WAY more vulnerable than the fuse box.

Do you have anything going on?

 

oh yeah - drives normal then big time stumble if not out right stall then ses pops on and off loads up rich fun to drive couldn't if weren't a stick...

 

If you are getting a code, please post the code.

What year? we need more information on your car.

How long ago was the water damage? Sounds like it was a while ago?

 

86 c4 end of October had wicked storm ripped roof of garage vette got good dousing symptoms day after storm

 

I have a 1988 Coupe that had a cover on it while sitting outside. At one point I removed the cover and found moisture on the dashboard, inside door glass and near the fuses. Sitting inside why my son hosed down the car and I found the leak. It was where the windshield seals connects the passenger door glass. The seals were old and let water through which went to the fuse area of my dashboard.

My car would not start or run the fuel pump or any of the fused accessories from that panel. I ended up finding that aluminum oxide can interrupt the flow of electricity. I replaced all of the roof seals and there is no more water getting into my car (from above at least).

My fuses were not showing continuity (surface corrosion) so I replaced them and then I cleaned the fuse block with a points file and some emory cloth. After doing this all my accessories started to get power again.

I have spent hours cleaning and reconnecting the grounds and the post with the fusible links going to it. Voltage drops are common on these old cars.

Good luck sorting out the Gremlins in your Corvette!