I was doing some offroading today and took my truck through a waterhole that was a lil deeper than it looked, when hit it, quite a bit of water got sucked through my intake (i have an aftermarket spectre air filter). at first it cut off on me, and wouldnt crank. but we let it dry out for a while and it cranked back up but now the engine is making a ticked sound that increases with RPMs. the truck seemes to run fine, other than the ticking. my check engine light came on and i had 4 codes, 3 were sensors which i assumed just came from them getting wet, but one of them was cylinder 1 misfire detected... i'm assuming this has something to do with the ticking. i dont really know what it could be or how much damage i could have. i put some seafoam in my gastank to try and get any moisture out. i dont know if the coilpack just got wet, maybe i need a new plug? anybody have any ideas?

 

bump...

 

Well did most of the codes go away? I had this happen to me about 2-3 weeks ago, and here's what I did. Remove the front 2 O2 sensors and clean them off, then reinstall. Remove my intake and completely dry it and the tube out, then reinstall. Remove the throttle plate and clean it, then reinstall. Remove all 16 spark plugs and the coil packs, then turn the engine over with the key 5-6 times, to get any of the crap that's still in the cylindar out. Check the spark plugs, they're prolly fouled. Replace or clean then as much as possible, then reinstall. Go buy 1 or 2 cans of HEET(water remover), Oreilly Auto parts sells it for pretty cheap. Put 1 - 1.5 cans in a full tank. Let your truck idle for about 10-15-20 mins. This should take care of the codes and most of the rough idle problem. Then take it out on the highway and get on it a little bit, to get all of the heet working through the system. If this doesn't fix all of your problems, then you probably have a couple bad sensors, or if it's really bad, you might have bent an intake valve. But try this first and see. Good luck!

 

You have hydro locked the engine by filling up the cylinders with water that came in through the air intake. By starting the engine instead of first removing ALL the plugs and turning the engine over to get the water out, you have now probably messed up the valves in the heads and if you're lucky, that ticking noise is not one of them hitting the piston on the #1 cylinder. I see some major expense in your near future. Sorry!

 

Yup, anytime you suck in water you NEVER try to restart. Always drain everything out through the drain holes and hope there was no damage done. My brother learned the hard way twice on his Taco. Off roading is an expensive hobby. Good luck

 

In others words, when liquid is in the cylinder and the valves are both closed for the compression stroke and the piston is coming up, you are trying to compress liquid and not air and something has to give which is usually something internal in the engine

 

So a hydrolocked engine will still run? Cuz like I said, it still seems too run fine, other than the ticking. If that's the case, how expensive are we talking here?

 

is it a 4.7 or 5.7?

 

It will run but only because it isnt fully locked or sustained catastrophic damage. They are saying you may have damaged something internally but not to the point where it wont run at all, thus the ticking sound.

 

It might run for another 50K or it may quit next week. Hard to say without a tear down to find the issue. Keep your eye on a replacement engine and do a swap otherwise it could be a time bomb and quit at the worst time and place. My two cents. Sorry for the bad news