How to check if engine coolant needs to be replaced

[WhiffenC]

Another way to do it is stick your pinky in the oil level pipe and your tongue into the coolant and compare that to the feeling from licking a 9v battery. If the tingle is anywhere less than 18x as buzzy then replace the wiper fluid.

[danrozanski]

Made the video just to flex 390k on the odometer 😂

[DeloresPeterson-kudr]

Thank you for the lessons please know you explain things so thoroughly. I am truly grateful..

[leo]

I know for a fact this works! My coolant resevoir was boiling so i knew something was wrong. I stumbled across this video to see if it holds true went outside and tested for a voltage of .17v

[christinasavannah]

Your have 390, 807 miles? Omg is your car a

[jacksdad]

Ive had the same coolant since 2013 It’s a little rusty but every things running fine. With 200k miles and still going like it’s nothing I might change it at some point but rn it’s doing its job

[mathewmartinez]

Holy shit a wrangler with 390k plus is bananas. Have u rebuilt the engine?

[ormorecharactersNO]

Fun fact nontoxic, rv antifreeze doesn’t taste that bad.

[wavey_lit]

I’m more impressed with that 390k on the tac 😎

[GoingGoneGalt]

This makes no sense to me at all... but maybe I am missing something. I am a shade tree mechanic with a degree in electronic engineering, so it's not like I don't get what is happening. Why would the difference in potential between the chassis ground and a random spot in the coolant mean anything? How could you quantify it? There will be major variances with coolant chemistry, block and radiator metallurgy, harness wiring, and others. What could this possibly tell you, and why would the desired reading be consistent between many different vehicles?

[DerangedIntellectual]

another indicator is when the fan gets loud while idling/parked

[Cobra_Diamond]

💎 So If I Live Out In The Country & Cannot Find Your CPU Reader Mechanism, How Do I Read It Without Your

[Matrix-oe]

How they get that car to 390, 872 miles?
My 1996 ford explorer V8 5.0 have 260, 000 miles still running i hope i can make it pass 390, 000 miles

[rolovibes]

He's Working on His Car and the maker has a sticker that says Void If Removed 😂 The Nerve of Car Companies 😂

[reymundmacabenta]

Doesn't make sense, the job of the coolant is to cool down the radiator

[Cat-esrq]

Is it a red flag the coolant valve replaced on a 15000kms only 2.5 year old car🥺 My Mazda CX5 (bought in Dec 2021 brand new) showing check engine light and coolant valve needed to be replaced. I'm really worried if it's gonna run into more problems😔

[Ahira]

Where need to point the selector of multimeter? (I didnt get your pronountiation).

[HenryWalkes]

Please tell me when I car run hot when a c is on I did the head job I change water pump I radiator is over a year old the cap change any ideas?

[spuoky]

i just got my coolant changed and when i run my car it still over beats to 120°c and tells me my coolant levels low, could you kno the problem ?

[HexagonFL]

It’s so easy, all you need is this tool that an average person has never heard of. Right…