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  #1  
Old 11-17-2014, 08:43 PM
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Cleaning Engine bay

Hey everyone,

So tomorrow I'm planning on cleaning my engine bay since my water pump blew and released a lot of coolant which got everywhere.

I was wondering what parts I should cover with plastic before wash it down (electrical, etc). I have a CAI so I know I need to cover that. Also what kind of soap is recommend or should I just use water. Please let me know.

Thanks.

Edit: I have a 2012 Grand Cherokee

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Old 11-17-2014, 11:09 PM
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Re: Cleaning Engine bay

I cover the alternator & as you said the CAI filter... That's it but I do also dry everything I can get to afterward and try to give everything plenty of time to dry out before driving as well....

As for soap, I use Simple Green... You can vary the strength based on how long its been since it was cleaned.

Typically I wet everything down (spray off any standing dirt or grime) with water. Spray down heavily with Simple Green.

Usually 2 Parts water, 1 Part Simple Green though I have done 2 parts SG, 1 Part water when I first bought our 2012 as it was a year old and never cleaned. Let it soak, the longer the better but do not let it dry.

Spray again with water. Dry what you can reach, paying additional attention to areas that may cause water to pool.

DONE

Again if needed you can go with a stronger mix of SG and/or you can hand scrub anything you can reach but 99% of the time neither is necessary.

Usually I do this just before I give the full vehicle a bath as you will likely end up with overspray and splashing outside of the engine bay.

------------------------------------------
--> Cover CAI & Alternator
--> Spray Water
--> Simple Green (2 Parts Water, 1 Part Simple Green)
--> Spray Water
--> Dry
--> Remove cover from CAI & alternator

--> DONE
--------------------------------------------
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Old 11-17-2014, 11:11 PM
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Re: Cleaning Engine bay



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Old 11-19-2014, 12:12 AM
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Re: Cleaning Engine bay

Most engines will not have issues with moisture and water that is not completely soaking electrical components. Moisture is a part of being exposed to the elements.

A minimalist approach to detailing an engine bay is best.

Start by doing all work while the engine is cool(busted plugs aren't awesome). Using a pressure washer with low pressure will allow you to lightly remove the degreaser along with filth.

If you see any connectors that appear to be a bit more on the exposed side, wrap with a mf towel to minimize dousing of the connector or use some cling wrap. Do not use aluminum wrap.

Clean from top to down and work in relatively smaller sections. Rinse often and lightly.

Once complete with the cleaning, use an electric leaf blower or compressed air to knock loose water away. Do not crank for a few hours. Allow the engine bay to completely dry.

That's a quick rundown on safely cleaning engine bays. There are a ton of ways to tweak it.
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Old 11-19-2014, 08:43 AM
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Re: Cleaning Engine bay

Thanks Daniel,

Where can I find the alternator?


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Old 11-26-2014, 12:08 PM
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Re: Cleaning Engine bay

Sorry for my slow response, assuming its the same place on the 5.7 as on our 6.4., it should be in the front of the engine, left side as you are looking at it, down below the water inlet hose....

Just for the record, looks like others above also had some great tips, I may slightly change my approach based on some of that as well.
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Old 11-28-2014, 12:41 PM
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Re: Cleaning Engine bay

I do exactly as stated above with any vehicle I've detailed. Simple Green, preferably hot water on a cool engine. I also use a soft bristle nylon brush to get into the tight spots. Once scrubbed up, I rinse, and hit the whole thing with an electric leaf blower to dry it and knock out any pooling. You can then apply your favorite dressing if you want some shine.
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