Are there any tips on degreasing an engine?? What do you have to cover when doing it??
thanks

 

You dont have to cover anything. It is best done at the DIY carwash so that the grease and oil can be properly disposed of.
Just dont use the high pressure, use the low pressure wand. If you can bring your ramps so that you can clean the underside too.
Let the engine cool for 5-10 min before you start.

 

I would double check that your computer is properly sealed, mine is located on the passenger side fender under the hood near the firewall.I sat at the carwash for over an hour with my Disco unable to start. I found that the inner most plug was not completely water tight and i had no spark. I removed the plug, dried it out and all was fine again.