First, you would have to be sure that the knocking sound is due to the water. Water in the intake often results in 'hydrostatic lock' of an engine; that is, the water fills the cylinder(s) and makes it impossible for the pistons to move. This result in damage to throw rods/lifters or valves which could cause noise. If your engine is running, you aren't locked per se but you can make sure there is no water in there by removing your spark plugs and turning the starter over several times. This will give the cylinders a chance to eliminate the water by pressurizing the cylinder and shooting the water out of the spark plug holes. Then you can spray pressurized air into the holes to dry them out, check your plugs, take the opportunity to clean and gap the old plugs or put in new plugs, replace and start the car. If the noise persists you may need to remove the valve head cover and inspect your valves - you may also be able to visually inspect your throw rods or lifters. Make sure you have an appropriate gasket sealer on hand (I use RTV sealer) to replace the cover once done - you may also have to replace the gasket if it is damaged when you remove it. I strongly suggest you buy the appropriate Chilton's or other guide for your specific vehicle before you start taking stuff apart. If you feel at all less than fully confident in your mechanic skills, consider a professional mechanic.
Having a bad rod bearing could cause a truck to make a loud knocking noise and shake when driving at high speeds. The engine having a coolant leak or an engine timing problem could also cause the knocking noise.
When your engine has a knocking noise, it could mean that a rod has been thrown. It could also mean you are low on oil.
The engine on your 04 5.3L Chevy Tahoe could be knocking until it warmed up because of a bad fuel-air mixture. . The wrong oil could also be a cause.
NO. A knocking noise in the engine is a problem in the engine.
if the engine is knocking you could have bad support bushings for the mouter mounts or your engine could be warped do to excessive heat wear
It could be the cause of the knock only if the gasket was bad and leaked out almost all the oil.
u knocking on it
Crack in intake or exhust, or belt glazing- Check all the intake and exhust bolts.
if you have an electrical fuel pump can sometimes do that
Many things actually, like not taking care of your vehicle and letting the oil in it get bad, which could cause the engine to blow up!
it could be a head leaking or the intake manifold, if its coming from the very top its most likely the intake manifold gasket
If you have coolant on the top of the engine it could be a leaky thermostat housing or a leaking intake gasket.
it could be your valves or your engine
generally it isn't really coming from the intake rather it is echoing from the engine through components into the intake. the intake is hollow so it echoes most sounds making it seem noises come from the intake when most of the time it's not the part making noise. check your oil level. if you have OHC's that could be a next place to check
The thing that could cause a knocking noise in your car is the same thing that could cause it in all cars A rod that or a flat lifter. it all really depends on where the knock is if its higher and to the back of the motor, it could be a motor mount
The owner's manual suggests a rating of 91 octane and further comments that 87 can be used but could cause knocking in the engine.
Why yes. Loss of compression in that cylinder that has noisy lifter.
My 99 sonoma had a knock and it was a wrist pin in the engine, my 99 jimmy fuel injection leaked gas in the engine oil and caused the main bearings to fail because of lack of proper lubrication.
Depends on the sound of the knock. Could be main bearings or rod bearings.
It could just be condensation which forms in the exhaust system outside of the engine, or you could be leaking coolant into your engine (typically via the head or intake manifold gasket).
intake gasket on rear of engine on top between intake and block 302's leak there alot
Could be a rod knock. Your bearings slipping in the engine.
Engine knocking occurs in a vehicle when there are misfires in the spark plug ignition causing an air/fuel mixture to explode outside the envelope of the normal combustion front. This condition could be very damaging to an engine if not checked by a mechanic.