Question Regarding Cleaning Engine/Engine Bay

**Badass WS6** · 07-19-2010, 07:20 PM

As the title states, I have a few questions. I am wanting to powerwash my motor and the engine bay becuase it's seen cleaner days.

For those that have done this, what do I need to cover/protect from getting wet. Stupid question, I know. But, oh well.

Thanks in advance for any help.

**dragonchick** · 07-20-2010, 02:19 PM

Hmm, off the top of my head i'm thinking you need to protect the altenator, the fuses, and probably the computer. I've never power washed mine, but I have used engine degreaser B4. I've never really covered anything up either, but i'd watch at what angle I was spraying the waterhose on certain parts, but of course if you're gonna power wash, most definatly cover the above mentioned up. Also, when I take the waterhose to the engine, I have the car running. It probably doesn't make any difference, but I figure with everything spinning, that's less water settling on the engine and it's components. I hope this will help

**98maro** · 07-20-2010, 02:24 PM

The only think I protect is the computer and fuse box
I use degreaser and power washer.
When I'm done I turn the car on for few minutes
Let it dry. Then put some armorall for a good shine

**pajeff02** · 07-20-2010, 02:38 PM

The knock sensors apparently have a strong dislike of H2O -- changing them out involves pulling the intake. That being said, I have washed our engine bay twice. With the engine cold, I soaked everything down with Simple Green and let it set for a bit. I used an old sponge on most of the flat surfaces and a small brush on complex areas to work all the grime loose.

The engine bay was then gently rinsed -- no high pressure water! I avoided spraying the PCM, alternator and not much water was used at all around the intake. I then towel dried what I could and used compressed air as well -- gently. Once everything was mostly dry, I started the car and let engine heat take care of the rest.