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under hood washing

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aleelloo

Proven Member
151
2
Dec 13, 2016
florida, Texas
can anyone please give me a guide into how to clean my dsm 1995 2g under hood parts? its all dirty and needs cleaning so please any1 give me a small guide step by step as im new to this car things and i dont rlly wana mess up my car , and please tell me which parts i shld cover...
thank you :D
 
I do this with the cleaner Simple Green, a bucket of water, and a bunch of shop towels, by hand. The idea of spraying all my expensive car parts with a hose never sat right with me, but that's just me. If you're going to wash it out with a hose/pressure washer you need to cover anything that might let water into the engine, like the intake/air filter and try not to get a bunch of water down inside things like the timing cover. 4g's don't have distributors so don't need to worry about covering that.
 
i just dont get it man , im just a nooby and new and idk which parts exactly i should cover
all ik i shld cover altenator and air filter ....
what about blow of valve? battery? other coil wires??? please help me out.
 
I do this with the cleaner Simple Green, a bucket of water, and a bunch of shop towels, by hand. The idea of spraying all my expensive car parts with a hose never sat right with me, but that's just me. If you're going to wash it out with a hose/pressure washer you need to cover anything that might let water into the engine, like the intake/air filter and try not to get a bunch of water down inside things like the timing cover. 4g's don't have distributors so don't need to worry about covering that.
i still dont get which parts to cover:( im a new nooby here
 
alright i found out that i should cover the following up
ignition coil , MAss air Flow , resistor , CAS(crank angle sensor) , alternator
did i miss anythn out? PLEASE HELP ME
 
Yes electricity and water do not mix. So you want to keep water out of your sensors. The coil, MDP, transistor, there's a knock sensor on the back of the block, the backs of your headlights can let water in. Also I didn't mention the spark plug holes. Definitely don't want water getting down in there, it'd be hard to get out. The timing cover area, the alternator, wiring itself corrodes when water makes it inside the insulation... I could list things all day that could potentially be water damaged. That's why I said I do it by hand, sure you can do it with a hose but you have to be careful and cover stuff. And I've found once you cover everything important, you've blocked off half the engine bay making it impossible to get to anything.
 
I would not attempt this at all without having compressed air handy, because water easily makes its way into the spark plug wells. A quick youtube search would have already spoon fed you.
 
Ive washed engine bays dozens of times. Hell at my job the detailers wash every used and new car engine bay. Just do it with the car off. If you have an open element air filter cover it. Your alternator will be fine. Your wiring will be fine. Underhood connectors have weather seals blocking out water.

Steps: open hood. Cover filter. Wash engine bay. Soap. Scrub. Rinse off. Run engine to dry water. Use something on the rubber to make it shine
 
I always scrub everything down with simple green the. Start the car and with a water hose everything down just don't spray the air filter if it open be careful and let it idle for a while and then just drive it it should be dry fast with the heat
 
Competing in Rallycross often requires frequent cleaning of the engine bay after muddy events. If your electrical connectors are in good shape, using a hose should be fine to rinse the engine bay. When I need to clean the engine bay, I would:
  • Disconnect the battery (cover up the posts).
  • I also cover my open element filter with saran wrap or a couple plastic bags with a rubber band or two to keep water from seeping in where the filter meets the MAS adapter.
  • I use engine de-greaser for heavy build-up and dish soap/water for light cleaning. I let it soak for about ten minutes, then rinse with the hose. Having a low pressure, wide spray pattern keep is ideal.
  • After rinsing, I take rags and pull the plug cover to soak up any water that is around the plug wells. Then, pull the plug wires to ensure water has not seeped into the plug wells.
  • Use rags to soak up any pooling water in areas like the intake manifold and strut mounts.
  • Re-connect the battery and don't forget to take the cover off the filter.
  • Start the car to let the heat dissipate additional water.
Assuming there isn't any hack-wiring done, you should have no problems.
 
With the motor off, spray whatever you want for your degreaser. Start the motor and spray it off with the hose, just try your best not to get the important stuff, that everyone else has said, wet. And an air hose is good to have handy. After washing, use the air hose. 90% of the time if the car stops running give it a few hours and it will dry out. I usually get whatever sensor for the tach wet and it usually takes a few days for the tach to start working again
 
THANK U SO MUCH FOR HELPING!!! LOVE U GUYS
IMA GET MY ENGINE AND UNDERHOOD STUFF SHINING AGAIN
THNX AGAIN I APPREICIATE IT :d
 
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