A knock as in a rod knock or a ping under acceleration? You would have had to have had a significant amount of water go into the crankcase to thin out the oil enough to cause rod knock. Can you post a video with sound?
Originally Posted By: gregk24
A knock as in a rod knock or a ping under acceleration? You would have had to have had a significant amount of water go into the crankcase to thin out the oil enough to cause rod knock. Can you post a video with sound?
That`s really crazy! I`ve cleaned the engines/bays on every car I`ve owned since the mid-80s and have never had that happen. And I clean VERY thoroughly! Wish even more now that I could hear your engine.
Originally Posted By: richport29
Cleaned my engine compartment today. Covered electrical connection and alternator. Now the engine has a fairly loud knock. What would cause this?
Just for kicks and peace of mind,you could always change the oil *just in case* any water got in during the cleaning. Was the oil fill cap on tight and dipstick in place during the cleaning?
And it JUST started happening after you washed your engine bay? I honestly have no idea what the noise is, it doesn't sound like metal on metal to me though.