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Old Jul 31, 2022 | 02:17 AM
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I was wanting to know if anyone is aware of potential problems if I power wash my engine compartment?
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Old Jul 31, 2022 | 04:02 AM
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Originally Posted by Torch Ace
I was wanting to know if anyone is aware of potential problems if I power wash my engine compartment?
YES, I think it would be a problem. With all the electronics in cars now, any water on them could cause problems. I'd just wipe it down with a damp cloth where needed.
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Old Jul 31, 2022 | 06:39 AM
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https://www.corvetteforum.com/articl...ot-your-trunk/

From the link:

“Right on page 275 of the manual, Chevrolet recommends not only hand-washing the engine bay, but also to avoid automatic car washes altogether due to clearance issues some places might cause. They also recommend using water only, though they do allow for use of a pressure washer, so long as the pressure is below 2,000 psi, water temp is below 180 F, and the nozzle is kept a foot away.

Also: the manual tells you not to wash anything with a “no wash” sticker on it. If you do, the result “could cause damage that would not be covered by the vehicle warranty.” And speaking of covered, let’s see how to keep the wash out of the trunk”.
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Old Jul 31, 2022 | 06:41 AM
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Won't be a problem....Yes, there are tons of electronics now, burt the connections are all sealed up. I've been spray my engine with degreaser and hose it down twice a year...No issues....You can YouTube this and see for yourself....Easiest way to keep your Engine bay looking New...
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Old Jul 31, 2022 | 07:01 AM
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Originally Posted by Torch Ace
I was wanting to know if anyone is aware of potential problems if I power wash my engine compartment?
With all the pine pollen for a month+ season around here, when it's over I use my soap bucket and mitt as a last wash step. I use a soft hose spay to rinse BUT would not use a power washer.

During most of the year wash car as normal and rinse with a hose, soft stream. Pick up the small amount of water than gets into the engine compartment with the comer of a towel. It's only 4 or 5 oz and mostly from seams in the hatch to body NOT what some envision when they first get the car the hatch vents! Use that wet corner to wipe off the dust from the engine and flat panels. Dry with most of the towel, which is still dry!
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Old Jul 31, 2022 | 07:18 AM
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Simply green on a cold engine……wait 5 minutes, gently rinse with a garden hose…..done.
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Old Jul 31, 2022 | 10:50 AM
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Originally Posted by Torch Ace
I was wanting to know if anyone is aware of potential problems if I power wash my engine compartment?
I would not do it. But, the 2023 Owners Manual says this about it:



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Old Jul 31, 2022 | 02:40 PM
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Originally Posted by mikebutson
Won't be a problem....Yes, there are tons of electronics now, burt the connections are all sealed up. I've been spray my engine with degreaser and hose it down twice a year...No issues....You can YouTube this and see for yourself....Easiest way to keep your Engine bay looking New...
The connections are sealed against road spray and rain. They're not designed to withstand a power washer at close range. There's a big difference between a hose output and a power washer.

OP, it's just not worth taking a chance. Unless you took your C8 mudding, it shouldn't get dirty enough in there to need a power washer.
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Old Jul 31, 2022 | 04:06 PM
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Originally Posted by DSOMrulz
The connections are sealed against road spray and rain. They're not designed to withstand a power washer at close range. There's a big difference between a hose output and a power washer.

OP, it's just not worth taking a chance. Unless you took your C8 mudding, it shouldn't get dirty enough in there to need a power washer.
I agree, anyone putting power washer to an engine compartment is asking for trouble. If you spend just 15-20 minutes every 2-3 weeks wiping your engine/engine compartment down with cloth and mild cleaner it will never get to the point where a power washer is needed.
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Old Aug 1, 2022 | 01:57 AM
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Thanks, i didn't to look in the manual for that kid of information
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Old Aug 1, 2022 | 07:36 AM
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Originally Posted by Kevin A Jones
I agree, anyone putting power washer to an engine compartment is asking for trouble. If you spend just 15-20 minutes every 2-3 weeks wiping your engine/engine compartment down with cloth and mild cleaner it will never get to the point where a power washer is needed.
Why do these people need to use a power washer?..Is the engine covered in foot thick mud?..Are you in a super-hurry and need to get it done fast?...I get plenty of water pressure from my garden hose , and you can change the nozzle out to even increase the pressure.... Even a daily driver being used for work everyday isn't going to get that dirty...I save my pressure washer for the driveway,and the stucco on the house!....or cleaning the pavers on the lanai...
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Old Aug 1, 2022 | 08:06 AM
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Originally Posted by Torch Ace
I was wanting to know if anyone is aware of potential problems if I power wash my engine compartment?
If you are asking, you already have a good idea that is probably not a good idea…because it’s not.
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Old Aug 4, 2022 | 05:30 AM
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^ Pretty good list of precautions.
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Old Aug 8, 2022 | 08:44 PM
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Once a year I spray the engine on my C6 with an orange citrus cleaner, wait for half an hour, then turn on the pressure washer. I have an electric pressure washer rated at 2200 lbs. I do not place the spray nozzle closer than 24 inches from any electric connector.
At that distance it is not really pressure, just a spray. I may spray a lot closer around the hood hinges, or the water pump, or places I can see dirt and no electronics. Then I get out the air hose and blow everything off until it is dry, including any connectors.
Wait another hour or two with the hood open, then cross your fingers and hope it starts.
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Old Aug 8, 2022 | 09:09 PM
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Originally Posted by C5racecar
Once a year I spray the engine on my C6 with an orange citrus cleaner, wait for half an hour, then turn on the pressure washer. I have an electric pressure washer rated at 2200 lbs. I do not place the spray nozzle closer than 24 inches from any electric connector.
At that distance it is not really pressure, just a spray. I may spray a lot closer around the hood hinges, or the water pump, or places I can see dirt and no electronics. Then I get out the air hose and blow everything off until it is dry, including any connectors.
Wait another hour or two with the hood open, then cross your fingers and hope it starts.
Personally, I'd rather not do anything where I have to cross my finger and hope it starts.
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