944Ross

Aside from electrical issues, there is a serious risk of blowing the sand and dirt that's on the engine INTO the seals. The key thing is skill of the operator. What ever you do, don't spray the hood insulation!! The moron I bought my car from did, and I've been cleaning pieces of foam out from every nook and cranny ever since.

87 944 C

i've done it a few times with different cars. turn the car on and let the engine warm up, it will help prevent water from pooling in spots where it can't drain out. wire brush with engine grease remover(or oven cleaner), let is sit for a couple minutes then rinse it.

if you want to do behind the firewall where the battery sits, remove the battery and cover the terminal ends. make sure to clean out the rain drains then wash and rinse.

Cole

Blow sand into the seals? I your seals are good a couple of sand particles covered in water bunch off them as they leave the car is not going to do anything to them. Kinda the whole point in a seal!

Remove the battery? I this to get behind it? Water is not going to harm your battery at all. It's acid tight from the inside and filled with water! Not like you could get an actual short with a fast moving spray of water droplets.

Hollywood D

I used to work at a shop and when we would prep cars for sale we always cleaned the engine compartment up. We always used hot water so it evaporated off quicker. I don't know if it really makes a difference. We never had any not start on us though.

pkt1213

Just take the engine out