I took some water through my !FRA. I got the engine restarted but there is a slight rubbing sound at idle and low rpm and a loose chirp that sounds like a click. I cant pin point the problem. The engine got a new MAF and starter after the damage, but she should idle at 500rpm and it now idles at 600rpm.

I tried spraying the belts. relubricating the belt tensioner and still the sound doesnt go away.

The car seems to run normal. Although i do notice that when you give a quick spurt on the accelerator, you dont here that strong vacum of the air sucking in.

Need your help or experience with watter coming into the engine!!!

 

If you really sucked water through FRA you probably would have hydro locked the motor. If this happened, you have more problems than a rubbing chirping sound. The filter should have stopped pretty much all if not almost all of the water. Besides the entire air box would have had to be submerged for it to be able to pull the water in. Unless you have a setup like the fast toys ram air where there is actually a chamber that funnels air up into the air box, I don't think you got water all the way into the motor.
Be sure to change the filter. It may have gotten wet. But it should have dried out by now. Still a new one won't hurt.

The squeeking rubbing sound has to be a pulley some where or something laying on the belts or something.

 

From what he says and what I saw of it he actually got water in the motor. He got surprised by some rather deep water (a foot or two deep) under a bridge. He was going through and all the water was moving away from the nose of the car until some other people went through the water. He hit the brakes and all the water came back at the car. The car died in the water and had to be pushed out. The mechanic also had 2 starters shear off the block trying to restart the thing after hand cranking it. It definately has a whine to it, but I couldn't tell where it was coming from. It doesn't really sound like an accessory, it sounds like it's coming from the engine itself. It's a miracle the car still runs and he didn't crack a couple pistons or the block, but it would definately be nice to narrow down the possibilities for the whine and higher idle. Any ideas guys?

 

You'd think the machanic would have pulled the plugs and spun the motor before shearing starters off. Take it to another mechanic. The valves could have been damaged. The head gasket could be damaged. The connecting rods could be damaged. A compression test would be my starting point here. From there you can rule out many bad possibilities.

 

The mechanic hand cranked the engine first to pump out most of the water, but it still sheared off the starters and took one of the mounting bolt holes on the block with it. I don't know the details of the mechanic or what he did, but it sounded like a pretty messed up situation.

 

If it was that hard to restart, it had mucho water in the intake manifold runners as well as in the cylinders to destroy two starters and the holes in the block. IMHO, the engine probably has a bent connecting rod. I have seen a car left outside overnight with an air cleaner on it in a rain storm have enough water in it to bend a rod when started in the morning. That was an old school engine with a carburator but it takes suprisingly little water to screw up the engine big-time. Chances are that the valves and headgaskets are fine, sometimes when the rod bends it can put enough side load on the bore to crack it - hopefully the block can be fixed in the starter mounting area and a rod or two and you will be back underway. Basically the thing needs a thorough inspection and most likely an internal repair.

Insurance should cover it if you don't tell them that you modified the airbox. The stock airbox is designed to prevent this unless the water is really, really, deep. Once you modify the box you have to be super-vigilant about standing water. There is no way you should have been driving a car with the FRA mod on it through a foot or more of standing water. People on this board and on LS1.com have had 6" of standing water pop their engine with the FRA.