Hello everyone! Hope you doing good. Today I come with a little problem im having on my civic SI (D16a9). Well, a little back in time from the car, I got it like two and a half years ago, it wasn't neglected but it wasnt on perfect shape. I did the oil change a little bit out of time (not miles), so as the oil pan what's a little fucked up I decided to replaced it too(just scratches no dents, oil pan plug threads where fucked). That's when problems began, after doing all that, put the oil (10w40 and Honda genuine oil filter) so, everything in order, I cranked her up, oil light came off, turn engine off, check oil level and started it again. That's when I noticed a whining sound coming from the engine bay, I supposed PS pump because it's pretty similar, but filled the reservoir and the whine persisted. Noise fades as engine warm ups, oil light takes between a second or two to turn off when cold start. I suspect the oil pump is going off, but being too sudden of a matter it make me wonder if it's that or something else,(before the oil change nothing of this happened) I'm going to buy some oil pressure gauge to have on the dash. But meanwhile I wanted to ask before start changing parts. I will search the video I recorded and upload it here. (Sorry for all the text) Thanks in advance!

 

Is your windshield washer set on and dry?

 

Remove the P/S belt, restart the engine and see if the noise continues. If it does, then the P/S pump is not the problem. Sometimes when an oil pan is re-installed, too much Honda-Bond is used and some of the excess on the inside of the pan breaks off and lodges itself in the oil pick-up... thus, restricting oil flow and potentially oil starving/damaging the engine. If it isn't the P/S pump, pull the pan and check all that you have changed.

 

I take that on count, also, I didn't manage to get hondabond, so I use silicone instead, idk how it's called over there but it's only for engine use, I put a little thread only where the oil pan gets round. It's a little bit too high noise to be PS, and whinging doesn't change when steering it's turned. My first thought was that the sump being obstructed, but I presented the pan first, take it out to make sure everything was ok, then proceed to install. As you can see, I take every measure to make sure nothing was on the way of the oil sump. Also, oil light doesn't even flick, doesn't turn on even on all the way to 5k (engine rarely reach such high rpm)

 

That's one thing I need to check. But I have the understanding that the system purges itself when ignition it's on. In my case the whining starts when I start the engine. (Also, I will check it, one never know)

 

Hey there, sorry for the late reply everyone. The noise was(well it still is) the ac belt tensioner on its way out