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Old 07-28-2006, 10:44 PM
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My engine is clunking.. Water in it?

I'm having a problem. Tonight my engine started clunking when I go above 4000 rpm.. It also seems to be rougher at idle. Any ideas on what the problem is?

I have one guess, though. Could it be water in the engine? We had torrential rains here today and I hit a 5-6 inch deep flood on Rt 1 at about 45 mph. I didn't see the flood until I hit it.. The problem started after that. What are some symptoms of water in the engine?
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Old 07-28-2006, 10:47 PM
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if it's water, your motor is pretty much done. hydrolock is not a good thing.

Quote:
Originally Posted by Curious Joel
I'm having a problem. Tonight my engine started clunking when I go above 4000 rpm.. It also seems to be rougher at idle. Any ideas on what the problem is?

I have one guess, though. Could it be water in the engine? We had torrential rains here today and I hit a 5-6 inch deep flood on Rt 1 at about 45 mph. I didn't see the flood until I hit it.. The problem started after that. What are some symptoms of water in the engine?
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Old 07-28-2006, 10:50 PM
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Once water enters the engine, the engine is done. You need a new car, young man.
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Old 07-28-2006, 10:52 PM
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Quote:
Originally Posted by LeMansX5
Once water enters the engine, the engine is done. You need a new car, young man.
Is there any way to tell if there's water in it? Tonight when I was driving home, some water dripped on my foot and I don't think that's a good sign, considering where it would have had to have dropped from.. Should I take it to the dealer?
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Old 07-29-2006, 12:13 AM
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If there was water in it, would the engine seize immediately, or is it more of a slow process? There's definitely something wrong with the engine..
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Old 07-29-2006, 12:45 AM
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Well, that is one way to speed up the process of getting the new 3-series.
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Old 07-29-2006, 01:07 AM
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best case scenario - bent valve.
Worst case - throw a rod through the block.
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Old 07-29-2006, 02:06 AM
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CJ,

Before you take a match and burn your perfectly good BMW, RELAX...

When I lived in Miami we would have terrential (sp?) rain pours all the time. As I lived on an island, sometimes there would be a water accumulation and the only way home was through it. At the time, I had an Audi A4.

So, a number of times, I built up some ramming speed and drove my way through the puddle. It's not good to do this, I don't suggest it, but sometimes you gotta go and don't have much other choice.

I would have the car stall after ward on occassion and even a car died after doing this but came back to life the next day.. Let your car dry out and see what happens. I'd bet at least 50% chance, it will be fine. You probably got water in the exhaust. But again, all the times I did this, it never did any significant damage and believe you me, those puddles were huge.. Water would come on the windshield and I wouldn't be able to see. I do remember clunking noise and the car acting a little weird for a couple days though.

-- However, my bro also did this once in 1991. It was my dads BMW 735il and in Jamaca Queens, he was on his way home from the south shore to the north shore. He drove through a puddle that everyone else drove through and the car seized, in the middle of the puddle. It was pouring out and the electronics got hit. The sunroof and windows opened and the seats started moving about on their own. The entire electronics of the car were destroyed and water flooded in the car. It was about $20K worth of damage in 1992 dollars.

But if you got your car home, don't be surprised if it has problems turning over. Play with it.. You might not have done any significant damage.

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Old 07-29-2006, 02:21 AM
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Hmm...

Reading this makes me wonder about how my X3 is doing.

San Francisco once had really strong rains, and at the end of Sunset Blvd. there is a problem with the drainage and it always creates a rather large puddle. However on this evening, it was more than a puddle, maybe 5-10" of water deep and around 10 feet wide.

Initially I didn't see it, and went through it at 35 mph (speed limit) which slowed the car down to 10 mph and sent water flying upwards at least 5 feet on both sides of the car.

Being a teenager, and saying cool, I did it several at least 3 more times at increased speed. (Thus increasing the cool factor...)

X3 handled it like a champ, but it never occurred to me that this could have caused damage... Perhaps next time I'll use more caution.
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Old 07-29-2006, 08:23 AM
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Remove the spark plugs to let the cylinders dry out, in case you do have a little water in there, and hope for the post.
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