I got my jeep stuck in the creek and water came in the driver side almost up to my seat but didn't get in the passenger side. Half the hood was under water. I never shut it off because the muffler was under water now the check engine light is on and it is cutting out. What can I do to fix it?
Sorry, OP, for your problem. Sounds like a trip to a mechanic is in order. Doubt you'll get that one diagnosed over the internet. But maybe somebody will have some suggestions for something you could try.
If the engine got waterlocked it would have stalled. If water wasn't as high on the passenger side, he probably got lucky and kept in intake over the water level.
First and foremost you need to find out what trouble codes were recorded. Go to AutoZone and they will pull the codes for free. Write them down then post them here or in the tech section and members will be able to give more accurate advice.
I played boat with my TJ once and got stuck for a while. Had some electrical issues for a while, but they went away as it dried out. I hope that's all yours is. Good luck!
When you say "cutting out" what do you mean? Is it stalling? When does it stall? Does it start at all? Can you drive it a certain distance? Did it get flat bedded out of the trail? Is it a manual? Did you push the clutch while in the water? Details please.
If it starts, has no power, has a yellow engine light, and stalls after trying to drive it. Then my guess is the catalytic converter is trashed from the back build of exhaust fumes from the pipes being submerged for an extended period of time.
My suggestion would be to unplug the pre cat sensor and leave it dangling so the exhaust can escape from the bung. If it starts and runs fine, the cat is plugged. If it still has the same problem, then it's something else.
If only half the engine was submerged and it was mostly the driver side, then you might be safe from hydro lock and the intake is on the passenger side. If it was hydro locked it wouldn't start at all typically, which makes me lean toward drivetrain or exhaust.
Give us the codes and we might be able to do more. Otherwise I'm just stabbing in the dark here.
Edit:
Just want to reiterate what the other member said. You need to change ALL your fluids.
I would change all of the fluids and disconnect all of the electrical connections and let them dry out. Then when you put it back together put dielectric grease in all of the connections.
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