Spray Down the Bay?
If you're REALLY worried, you can do it with the car running. I've washed down the bay in a lot of cars though, and as long as its a modern vehicle with quality electrical connections, you'll be fine.
just cover the air filter and your good to go, but that doesnt mean you sit in one place for awhile
i always spray down my bays with simple green after letting the motor get to operating temp, let the simple green sit for a min or 2, scrub the greasy/dirty parts with a brush then use the pressure washer
follow up with some spray on tire detailer and your engine bay will look better than new!
i always spray down my bays with simple green after letting the motor get to operating temp, let the simple green sit for a min or 2, scrub the greasy/dirty parts with a brush then use the pressure washer
follow up with some spray on tire detailer and your engine bay will look better than new!
Try and stay away from the degreasers-- a rinse spray should be fine. Stay away from the alternator, power steering pump and anything else with bearings--. not too worried about the other items--all else should be good
Evolving Member
Joined: Oct 2010
Posts: 103
Likes: 0
From: Lancaster, CA
I like to go to the do it yourself style car washes and use their spotless rinse on the underhood of my car. There is less pressure and the water is less likely to leave waterspots. For heavy grease and grime, I will use Simple Green MAX degreaser. I also just make sure not to spray the air cleaner directly. If I do the wash at home, with a garden hose, then I wipe it down when Im done. Make sure to drive it after you wash it so any water evaporates.
All the electrical connections underhood were engineered to be water resistant.
I have never had any problems washing the engine bays of vehicles.
Just avoid directly hitting electrnoics with high pressure, it might allow water past the seals. It may not cause immediate problems, but the possibility for corrosion might cause headaches in the future.
I have never had any problems washing the engine bays of vehicles.
Just avoid directly hitting electrnoics with high pressure, it might allow water past the seals. It may not cause immediate problems, but the possibility for corrosion might cause headaches in the future.
I used to work there too when I went to school in nashville (NADC)....I was one of the guys that drove the cars to all the different place, the shop, back lots, auction line, etc...
I agree with most, cover the filter and as long as you keep the sprayer moving you should be fine. It's how all my detailing friends do it (they also say to do it while engine running too not sure why).....Blowing everything off with compressed air would be the best but deff not necessary, I just take it for a good drive to get heat inside the engine bay to help dry the water out. I used to do it everyday on the short buses with gas engines and they were fine. I do it with tractor trailers everyday but they're diesel and a different ball game (no ignition system) but still has plenty of wires and theyre fine.
When I do it at work I spray it down to get the dust off, dry it with compressed air, then put a light coat of wd-40 on most stuff to help keep it from rusting and displace any water (hence the name..WD-water displacement)
I agree with most, cover the filter and as long as you keep the sprayer moving you should be fine. It's how all my detailing friends do it (they also say to do it while engine running too not sure why).....Blowing everything off with compressed air would be the best but deff not necessary, I just take it for a good drive to get heat inside the engine bay to help dry the water out. I used to do it everyday on the short buses with gas engines and they were fine. I do it with tractor trailers everyday but they're diesel and a different ball game (no ignition system) but still has plenty of wires and theyre fine.
When I do it at work I spray it down to get the dust off, dry it with compressed air, then put a light coat of wd-40 on most stuff to help keep it from rusting and displace any water (hence the name..WD-water displacement)
Evolving Member
Joined: Mar 2006
Posts: 228
Likes: 0
Twice a year I cover the whole bay with de-greaser and spray down with a pressure washer, then let the care idle for about 15mins with the hood closed to dry everything out. Been doing this on all our cars for years without any problems. Just cover the filter if your running an open element.
Do u still work somewhere down eastgate blvd or did u recently quit there. Cuz I currently work over at genesco back over 40 off 109 and seen u bout a month ago and was wondering who drove it since evos around here are scarce few and far in between lol. I never drive my evo to work so u prob never seen mine but it looked like ur car at the red light on leeville pk going across 109 down eastgate.
since at the time I was driving my black 87 foxbody GT stang and that was like 4 years ago (wow time flies 
) so I been back home in NJ since then. I want to head back down there someday mainly to visit some very good friends I made, mainly girls haha but who knows when I would get down there.
Yeahh deff not me since at the time I was driving my black 87 foxbody GT stang and that was like 4 years ago (wow time flies ) so I been back home in NJ since then. I want to head back down there someday mainly to visit some very good friends I made, mainly girls haha but who knows when I would get down there.
since at the time I was driving my black 87 foxbody GT stang and that was like 4 years ago (wow time flies ) so I been back home in NJ since then. I want to head back down there someday mainly to visit some very good friends I made, mainly girls haha but who knows when I would get down there.
Newbie
Joined: May 2010
Posts: 30
Likes: 1
From: Scottsdale, AZ
From past experience this has not been a good experience for me. Had an 01 Saleen Mustang and sprayed it down at the carwash to clean it and had to have it towed to my local dealership. They then had to have a special SVO technician work on the vehicle. Good thing they were able to get it covered under warranty. Maybe different with these cars.
I know people do this all the time, but this still worries me. I don't think I could bring myself to do it. With my luck, something would happen and I would spend weeks trying to figure out what I broke.