How Active Engine Mounts Work

*Sponsored Video*
Have you ever heard of “active engine mounts”? If so, have you ever wondered how they work? You’re in luck, In this video I explain what active engine mounts are and how they work. I even have some really cool cut aways thanks to Anchor Industries.
Anchor is an 87 year old American based automotive parts manufacturer located in Cleveland, Ohio. Anchor has a long standing reputation as the aftermarket's premier engine and transmission mount manufacturer. Find Anchor parts at leading auto parts stores nationwide.
If you want to learn more check them out at: anchor-online.com
Find the part you need by visiting www.showmetheparts.com/anchor/
Parts used:
Anchor 2292 - Engine Mount Front Left & Right Buick, Chevrolet, GMC, Oldsmobile, Pontiac (1973-1996) OE 22188497
Anchor 2328 - Engine Mount Front Left & Right, Buick, Chevrolet, GMC, Oldsmobile, Pontiac (1975-1983) OE 22501573
Anchor 2987 - Engine Mount Right, Buick, Chevrolet, Pontiac, Saturn (2005-2009) OE 10448575
Anchor 9441 - Engine Mount Front, Acura, Honda (2001-2009) OE 50800-S0X-A03
Anchor 9737 - Engine Mount Front, Acura, Honda (2008-2020) OE 50830-TK8-A01
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Check out the ETCG Blog for the latest info: www.ericthecarguy.com/blog
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Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy®.

[@chrisfix]

This was awesome Eric! Nice!

[@itzthatdude1025]

Love you Chris!❤️

[@HouseCallAutoRepair]

impeccable timing too!

[@ericthecarguy]

Thanks Chris!

[@348frank348]

I'm humble mechanic, this is my other channel. What's up guys?

[@TreyCook21]

Hooray for brotherly car guy support!

[@robertasher3892]

Having a big bowl of ice creme watching ETCG1 explaining active engine mounts. Life is good.

[@kounga999]

You got all these fancy cars with their quantum actuated engine mounts and then me and my hockey pucks.

[@jesperjohanssonn6269]

I relate to this 😂

[@RG-tm7uq]

Haha!

[@pedrofernandez8729]

And more affordable as well.

[@jeremyd9826]

I'd rather have hockey pucks....

[@348frank348]

Hockey pucks ftw

[@timothylloyd4625]

Very informative! Thank you AI and Eric for giving us a concise and detailed look at different types of engine mounts.

[@topdog19945]

I never knew there was such a thing called an “active engine mount” that’s controlled by vacuum or the computer. But I just did engine mounts along with a few other things in my mini and holy crap what a night and day difference that was. I’d hear the engine clunk whenever I went over speed bumps. When I replaced the lower engine brace I noticed the rubber bushing was gone because the leaking oil had eaten away at them. And yes I did address the oil leaked as well

[@mds2465]

I remember those hydraulic mounts with the vacuum hose attached. I recently replaced all 5 motor/transmission mounts for my brother on his 2006 Pilot. Yes I bought all 5 mounts from Honda.

[@xxhyjynxx5939]

Got a 2005 Pilot, how much did all 5 factory mounts run ya? How many miles on it before replacement and what symptoms did you experience?

[@mds2465]

XxHyJyNxX they were pretty expensive, not gonna lie. I probably spent about $300 at least. As far as symptoms, I noticed a slightly higher pitched idle on cold start and the front hydraulic mount was completely flat and every time I went over a bump it was really rough. Car now rides much better and I can honestly say that it was worth every penny given that the car at that time had well over 230k. I do recommend that you get Honda mounts if you have to do this job.

[@xxhyjynxx5939]

Michael Sackstein I haven’t even hit 150k yet on mine, gotta love “little old lady” specials! Honda service-records an inch thick. Purchased it 2 months ago for under 3k. She rides pretty nice, but I have noticed a distinct “rocking” noise and motion going at angle over speed-bumps, as if the engine is shifting left-right at a different pace and more freely than the body. The engine deflects only but an inch or so when revved in-gear, brakes locked, no noises or excessive lift... but upon harder up-hill throttling you can almost feel the engine hop back, like a bad torque mount on a 4-cylinder for example. Is this the troublesome rear mount?

[@mds2465]

XxHyJyNxX it could very well be that mount is on its way out. I would definitely replace them. The problematic ones are usually the passenger side motor mount, and the front hydraulic mount

[@mds2465]

XxHyJyNxX it could be that your suspension needs work as well. Sounds to me like struts and sway bar links. I recently refurbished the entire suspension on my brothers 06 as well. Feel free to join my Honda Pilot owners group on Facebook if you want to learn more about your car: facebook.com/groups/hondapilotowners/?ref=share

[@knowledge5106_]

Thank you so much for this information! My wife just told me she was experiencing clunk when accelerating and when switching gears this morning in our 2014 Honda Odyssey. It's been a great vehicle. This looks like it will be quite involved for me to try and fix. We'll get it done.

[@lobstereleven4610]

Ok, really like this kinda of vids, both the explanation and the examples are super informative and clear. Thanks!

[@dontehoward1554]

Never knew if active motor mounts until today Great video!

[@DENicholsAutoBravado]

I've seen them before but I called them the wrong thing.

[@toml3651]

Eric, you're having way too much fun! I appreciate this, it solved the problem with my lesabre shaking on acceleration in a right turn. Dude, you rock!

[@thhall459]

Thank you Mr. Eric. I appreciate your channel immensely.

[@HouseCallAutoRepair]

Great timing Eric! My Crown Vic has a bad mount! Put the car in reverse, with the hood open.... Apply some throttle.... and up it comes! (Non Active, just like your truck)

[@Gold63Beast]

Wow!!! What a great freaking video Eric!!!! Thank you so much. Learned a lot, and I’ve been an mechanic for 10+ years lol

[@dznuttzonyachin7499]

This was awesome !! Im glad your taking the time to do this !! keep up the creativity and thanks again !!

[@ExtraFungus]

This is pretty cool, something I wasn't even aware of. It would be neat to use this in a custom application. On my stand alone it would be super easy to trigger these when the TPS is at a certain percentage through the nitrous control output.

[@cliffordgallagher4531]

Great explanation Eric! I had no idea that were Liquid and So Many other Variables of Motor mounts!

[@markryl-kuchar2373]

Thanks for the explanation Eric, very useful

[@Akula114]

Really superb, Eric, and Damn! what a set of pipes! This is certainly an understatement, but you've got one of the best inf not THE best voice-over/voice-talent guys on KZbin or the internet. Really top notch. I've never hear of active motor (engine) mounts, but I recently replaced the three on my old 2007 Saturn Vue, and WOW. You can actually carry on a conversation in what was rated as a really noisy car. Lovin' it... Great advice and well delivered! Thanks... Don

[@akrogershopper5]

Thanks for reporting on the engineering boy's latest edition on how to add something consumers never knew they needed while adding complexity and cost. Not to mention additional headaches for mechanics sorting out vibration issues.

[@bigwavedave2550]

WOW, awesome information. Very informative, thank you!

[@mindseye7909]

Great job! Love the cutaway views!

[@monsterq6]

Thanks for the informative and fun video Eric

[@andrisstukans]

Great video! Tnx for explaining Eric!

[@rebeccawimer2901]

Good stuff! Thanks, Eric!

[@simonsj15]

Nice job on the video. Very informative and professional.

[@jedwards9716]

Very interesting information. Thank you Sir!

[@amycyclenut]

Awesome video Eric, thanks!

[@rodneycepeda1742]

Thank you soooo much for making this video!

[@vh8765]

Thank you Eric. Awesome video. Help me out a lot.

[@gerrytseng]

those cut-outs are awesome!

[@ericcindycrowder7482]

Thanks for video. My favorite type of engine mount is on a racecar. Engine bolted to metal bracket, metal bracket then bolted to frame. Done!

[@Kls1972sm]

AWesome Knowledge Sir..I never new that.So educational ..Keep them vids coming

[@AntonioClaudioMichael]

Very nice cut open demonstration of all the engine mounts Eric 👍👌

[@theautomotivegarage]

Great Quality Video Sir, very Informative and Educational. Learning something New everyday. - Every-DAY. .Thank You!!!

[@gaves1nerisma]

Great informative video.! Thanks

[@ronrawald3245]

Great video Eric, thanks.

[@DENicholsAutoBravado]

I learned quite a bit. That was awesome!

[@ikocheratcr]

Nice educative video, more like these is a good thing. Now I know there is such a thing like "active engine mounts". Makes lots of sense.

[@gtzgreatride]

This is a very fascinating piece

[@MichaelMickelsen]

Great information in a short video.

[@felisindorodriguez8320]

Always good to know! Thanks very much.

[@vwrabbit4life]

thanks man i just replaced my wifes 2006 honda odyssey rear mount all the juice was coming out of it and was vibrating real bad. Wanted to learn more how it works. Much easier to do then my 2002 odyssey with the other style mount. Appreciate you

[@onefixitman]

That is a great description.

[@spelunkerd]

Excellent summary!

[@kovaa67]

Good stuff! Thanks for explaining Eric! :)

[@troywee4774]

cool, nice little bit of knowledge spreading - thats a good thing! cheers.

[@tirth0330]

Thankyou brother great knowledge

[@scallywag1716]

Very cool! Thank you.

[@shanerathburn9734]

Great video learned something new today.

[@KenLyns]

Learn something new every day!

[@OnlineAutoRepairVideos]

That was a GREAT video Eric, I NEVER KNEW!!

[@ericthecarguy]

Thank you!

[@PouriaSalehi]

Informative, thanks.

[@AntonioClaudioMichael]

Good work on the video Eric

[@pilotoymaquina4280]

cool vid! great work

[@PhillyDee215]

Cool 😎 I never seen a cut open view of a active motor mount👍

[@spadutys]

Just wanted to let you know this is still a great educational video. Thank you:-)

[@AntonioClaudioMichael]

Great video Eric

[@toribioramirez12]

Great Sponsorship!!!!

[@americanstreet8704]

Very cool Eric and I bought a trans mount from them a month ago and doing my engine mounts for the hell of it now

[@mrbreezeet1]

From Anchor? Are there motor mounts decent?

[@HotRod-wv4vm]

Very informative video 👍

[@labradormcgraw]

Why don't I know anything? I've never heard of active engine mounts! I thought that they were just rubber units sandwiched between metal mounting blocks. I suppose the next stage is when we need a $1500 scan tool to reprogram them whenever they get replaced - that'll be something to look forward to. Anyway, enough of that rant. Great quality video - still the best on KZbin. Long live ETCG!

[@ericthecarguy]

Thanks! Perhaps we'll be switched to electric by then. We won't have to worry about idle vibrations then. As always, thanks for the comment.

[@ronaldschild157]

Now this is how sponsored content should all be done. The sponsor gets a nice subtle bit of recognition while enabling the host (Eric) to better illustrate the function of the component.

[@goatmaster3387]

This was video gold

[@arthurfricchione8119]

Eric I just changed the front mount on my wife’s 99 Accord with active engine mounts but it has the vacuum line on the bottom but the vacuum is ported from a valve up on the drivers side of the engine compartment. Thanks again for the video and stay dirty and well 👍👍👍 I had a slight vibration in steering wheel at idle and hook up a vacuum pump to vacuum port on mount and it would not hold vacuum. Also changed all the vacuum just for reasons of age they were good but what the heck 😊😊😊

[@DENicholsAutoBravado]

Right! You don't want vacuum leaks!

[@621ELECTRONICS]

I didn't even know about active mounts until this, interesting to see. I know none of my vehicles have ever had them. Speaking of engine mounts, I'll be unbolting them in my 91 Lincoln Town Car soon to lift the engine and try to change the oil pan. Had to do this in my Ford Ranger once as well, what a pain in the backside. If you need any content Eric, I have a few vehicles that could sure benefit from your lift and or engine hoist, I'll do the work, lol. Anyway, thanks for the cool videos Eric!

[@geluanton1463]

Great video,Eric! Using marbles for showing the little movement was a great idea!

[@pirihern9329]

1995 honda odyssey rear mount was a vacuum engine mount. There is a lever near it don't know what it's for. Gave up trying to fix. Has 300,000 miles on it. Thanks very informative

[@nevoyu]

This is interesting to watch.

[@ip161314]

awesome!!! thank you

[@BryanAcosta4200]

Thank you my 2004 Acura tsx will be getting a set of anchor mount

[@vijayantgovender2045]

Thank you Eric I enjoy watching your educational video I am from South Africa 🇿🇦

[@ericthecarguy]

Hello South Africa!

[@vijayantgovender2045]

@@ericthecarguy hello USA 🇺🇸 😂

[@AlienPizza38]

Very cool👍

[@timbrown9731]

Thanks Eric!

[@carlossalvidres2898]

Damn i have a honda element and your videos are helpfu0l thanks for sharing

[@ericthecarguy]

Glad you find the videos useful. Thanks for the comment.

[@homebuilthappiness2919]

Thanks Eric. I'm only familiar with old school rubber mounts. I never knew they had "active" mounts. Honestly I think it's another excuse for the car to set a CEL and send people to the dealer but I appreciate being educated.

[@michaelmiller4716]

A very well done, informative video. Unfortunately in the Nissan world when motor mount electrics shorted, it would also take out the ECM. Quite a surprise for the customer after warranty time expired.

[@chris010281]

Very interesting

[@elenchus]

what a great video

[@karizmatic5]

You. Are. Awesome.

[@p1st0ls44]

Actually pretty cool. I never knew that

[@jjlkewl]

That's a really good use of a sponsor!! Really educative too!! Thank you Eric

[@ericthecarguy]

Yea, I was very happy to make this video. Thanks for the comment.

[@carsrcool7149]

Good vid !

[@car-man]

감사합니다

[@eugenenapal5764]

Nice one

[@mcjok88]

Wow very interesting.

[@robertcastaldo5038]

Great video. From the state of pa.

[@SWTWHITEGSR]

Wonder if they offer it for older cars. Nice video eric!

[@paulc858]

Way to go! I always learn a lot from your videos. Thanks. What knuckle head gave you a thumbs down? Must be electric car guys. 🤦‍♂️

[@machain1996]

Nice vid

[@jeffkelley3419]

Thanks, Eric. I appreciate how you reviewed the history of engine mounts going from semi-solid (rubber/steel) to vacuum, and then on to liquid and electronic combinations. I was wondering how the active engine mounts affect the drive train, in particular the drive shaft? The drive shaft is often neglected as a crucial component of the drive train system. So often, the height of vehicles are changed by different-sized tires, or suspension system and the drive shaft is not checked for parallelism to the driving surface. This is an important aspect of drive train engineering I would like you to cover in-depth in a future video. Thanks for another brain stimulating video. Now I know that if my car is rockin' my active engine mounts could be knockin'. Jeff

[@xxRamD3yruxx]

They don't usually use these on rwd cars, and a fwd can axle can take a lot of flex

[@ericthecarguy]

I actually touched on ride height affecting driveline angles during the #ETCGDadsTruck series. However, it didn't specifically reference engine mounts. Perhaps at some point it would be worth revisiting. Thank you for the suggestion.

[@jeffkelley3419]

@@xxRamD3yruxx Anytime an ICE engine is placed in the front of a car a drive axle must be employed to transfer locomotion to 4WD, AWD, and RWD vehicles.

[@xxRamD3yruxx]

@@jeffkelley3419 right, but a cv axle is not as likely to have a driveline vibration as a driveshaft with ujoints. I would say the inherent differences in the way rwd vs fwd cars are built and the physics involved negate the necessity for an active engine mount

[@yambo59]

Another expensive and over engineering idea doomed to fail that only gives a small return on investment - except for the manufacturer and the mechainic getting $100 an hour plus parts to replace them. Reminds me of when Cadillac put shock absorbers on the fenders of the old Sevilles to stop minor fender shake that was present because it wasnt a real Cadillac but rather a Chevy Nova subframe that shook like a leaf. Yes im that old. Still a very informative video Eric, thanks again.

[@racheat]

These have been around since early '90's at least.

[@jonathangarzon2798]

@@FixingWithFriends only you will never get an active mount that lasts as long as one that is not. Which is terrible for a section of the frame. All for ONLY the sake of comfort. I'm gonna tear mine out and put polyurethane mounts because that's enough to deaden the light vibration that can wear out the mount bolts, idc about vibration in the cabin I'm not a woman

[@brianreese9318]

Nice 👍

[@BaveMage]

I'm going to have to get busy swapping mounts on my 2007 Civic soon, (non-active engine mounts) just hard to switch into second gear lately.

[@supersabrosinho]

I would have like to know how the vacuum actuated the upper mount chambers. The physics and all. Thanks for the vid, I will probably buy anchor mounts from now on

[@angelsanchez9539]

Eric, do you really buy these just for the sole purpose of cutting them up and informing us? Thank you so much for these videos!

[@johnpike1552]

Kinda cool!

[@joncue0304]

Reverse to drive? Some of us have a manual transmission 😂 Great video. Just had a vacuum line to my mount go bad and caused a vacuum leak and fuel trim problem.

[@jean-marckhater2181]

Will anchor rubber mounts be as good as oem gm mounts regarding vibration damping if mated with a good condition engine of a 1996 camaro z28 lets say?

[@jiwonkevin]

Hi Eric I have 2006 odyssey which has 3 engine mounts 2 transmission mounts. I replace one at timing belt side and the other 2 transmission mounts with Honda OEM parts. I tried to change front and rear engine mounts, but it looked solid state by pushing hard...no visually defects. So I did not change them. At idle mode, it has no vibration but trying to move at the beginning by pushing acceleration pedal makes metal or clunk sound. Changing to P or R from D creates engine move a lot not from R to D. I wonder if my car symptoms from active engine front and rear mounts since your video is showing lots of metals...? I inspected only top metal portion, no way to check bottom portion of metals. Is that right guess? Need your ideas what to do? Thanks!

[@bendude6748]

Pretty cool, I guess they have their place but also another thing to go wrong lol.