How do I Clean my Engine Bay? Never Done it Before and It’s Dirty - Second Generation Nissan Xterra Forums (2005+)
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post #1 of 14 (permalink) Old 01-13-2019, 10:36 PM Thread Starter
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How do I Clean my Engine Bay? Never Done it Before and It’s Dirty

probably a stupid question but i’m a noob. google results say some people cover certain areas then spray it down and others say you don’t need to cover anything. so is it bad if certain parts get wet?

Last edited by 4wheeldriving; 01-14-2019 at 08:57 AM.
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post #2 of 14 (permalink) Old 01-13-2019, 11:03 PM
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My practice is as follows:

1) Make sure engine compartment is cool.
2) Spray everything down with a foaming engine degreaser
3) Wait 5-10 minutes
4) Hose everything down with low water pressure
5) Dry off the flat plastic parts of the engine bay with a towel
6) Optional step. If an air compressor is handy and you are feeling like an over achiever, blow out some of the crevices in the plastic
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post #3 of 14 (permalink) Old 01-13-2019, 11:12 PM
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post #4 of 14 (permalink) Old 01-14-2019, 05:53 AM
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Once a year, I will use an engine cleaner followed by a pump up sprayer filled with water.

Basically, the sprayer allows me to rinse what's needed without worry of getting water anywhere unneeded.

Whenever I'm in a cleaning mood I will spray the plastic under the hood with "Mothers VLR". This product works well to clean and enhance all the black plastic under your hood.
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post #5 of 14 (permalink) Old 01-14-2019, 08:56 AM Thread Starter
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Quote:
Originally Posted by maytawn View Post
My practice is as follows:

1) Make sure engine compartment is cool.
2) Spray everything down with a foaming engine degreaser
3) Wait 5-10 minutes
4) Hose everything down with low water pressure
5) Dry off the flat plastic parts of the engine bay with a towel
6) Optional step. If an air compressor is handy and you are feeling like an over achiever, blow out some of the crevices in the plastic
can everything in there get wet?
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post #6 of 14 (permalink) Old 01-14-2019, 12:54 PM
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Quote:
Originally Posted by 4wheeldriving View Post
can everything in there get wet?
I hose out the whole engine compartment and have never had a problem. Just be careful. Make sure your engine is COLD and definitely only use low water pressure.
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post #7 of 14 (permalink) Old 01-14-2019, 01:34 PM
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What if its hot? other than some steam whats the drawback? seems like it might even help remove some of the caked on oil/etc.
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post #8 of 14 (permalink) Old 01-14-2019, 04:32 PM
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post #9 of 14 (permalink) Old 01-14-2019, 05:20 PM
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Quote:
Originally Posted by mtnbound View Post
What if its hot? other than some steam whats the drawback? seems like it might even help remove some of the caked on oil/etc.
I could see some cracked manifolds but then again those can get submerged without cracking. I have submerged mine several times. I know the common consensus is cool when using degreasers but I will spray the bay down with lower pressure hot... say after a day of wheeling in mud, stopping at a self serve car wash to get some mud off.
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post #10 of 14 (permalink) Old 01-22-2019, 12:44 AM Thread Starter
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so everything here can be sprayed?

https://imgur.com/gallery/Cg43gEx
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