20 Least Reliable Car Engines That Will Break Down!

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  • Опубликовано: 7 янв 2025

Комментарии • 155

  • @freibert
    @freibert 2 месяца назад +99

    Ford Eco Boost should be Number 1 - Timing belt running in oil is the most insane "invention" in the history of cars!

    • @RedneckSpaceman
      @RedneckSpaceman 2 месяца назад +6

      That does indeed worry me. The Ecoboost was getting all this promotion! I have a 2017 F150 with the 2.7 Ecoboost. I'm getting close to 60k. No indication of any problem....yet.

    • @noahandthefurry4573
      @noahandthefurry4573 2 месяца назад +4

      especially since oldsmobile fixed the diesel in 1985 where as the ecoboost has yet to get a timing chain kit or anything like that

    • @fabianrus6006
      @fabianrus6006 2 месяца назад +4

      The psa Engines (Citroen, Peugeot, Opel) too

    • @user-wy1dl2me2p
      @user-wy1dl2me2p 2 месяца назад

      What were they thinking?

    • @Bbbbad724
      @Bbbbad724 2 месяца назад +6

      Actually the belt is stronger than a chain. I know it sounds crazy. But the belt is usually stronger than steel and being wet makes it stronger . Many high rpm Indy engines turn 18.000 rpm’s and the belt has been accepted as a strong choice. I wish they could be easily changed. But engineer friends tell me that they have taken the belt far beyond what they were. The key is to keep the belt short enough that it doesn’t deflect.

  • @kentkrueger6035
    @kentkrueger6035 2 месяца назад +13

    The lifter noise on the Ford Cologne 2.8 Liter V6 was easy to fix. It wasn't really a problem at all.

    • @wymple09
      @wymple09 2 месяца назад +2

      Try to find one without cracked heads. There is an entire aftermarket on them

  • @rogermiller2159
    @rogermiller2159 2 месяца назад +33

    I made it to 18 minutes and did not want to hear that repetitious six note song.

  • @salvo7288
    @salvo7288 Месяц назад +1

    i own a 6G72. it is a bit loud but quiets relatively quick when warm

  • @geneheck
    @geneheck 2 месяца назад +33

    Get rid of the goofy background "music". I couldn't take anymore after about 1/3 of the way through.

    • @DougMedeiros
      @DougMedeiros 2 месяца назад

      I said the same thing I know about most of the engines

    • @arthurfoyt6727
      @arthurfoyt6727 2 месяца назад +2

      I was annoyed that they used the word "however" every 9 seconds.

  • @kingfishstevens2087
    @kingfishstevens2087 2 месяца назад +20

    You’re absolutely right about almost every motor in this video. You’re dead wrong about Ford’s Cologne 2.8 & Essex 4.2. I’ve been a mechanic since Christ was a corporal and I have seen ZERO evidence to back up your claims regarding these engines. I bought a Capri with the 2.8 and drove it to over 150,000 miles before giving it to my neighbor’s son, who had it for years before trading it for a Mustang. And an old friend has over 200k on his 4.2 V6 powered F-150.

    • @atx-cvpi_99
      @atx-cvpi_99 2 месяца назад +3

      97-2000 Ford 4.2 V6 had some design flaws. 2001 saw updates to the engine.

    • @johneeboi
      @johneeboi 2 месяца назад +1

      I agree on the Ford Cologne. Many years ago I had a '79 Mustang with that engine. There was a few issues with the car, but none of them was with the engine. it ran perfectly, although being a bit thirsty.

    • @AntiZOGZone
      @AntiZOGZone 2 месяца назад

      That's being a turd Polisher saying that the 2.8 was a good engine it was garbage

    • @LennertWelleman
      @LennertWelleman 2 месяца назад

      The Essex which gave thermal problems was the 3,0 V6. And what is problely not known in America, the Isuzu 3,0 diesel that was used in a lot of European diesels in the 2000 till 2010.

    • @Gleone58
      @Gleone58 2 месяца назад

      Also confused the 5.4 triton with the 4.6 2v. The 2v had the thin thread amount issue up to 2004. Slightly improved after. The 5.4 had the ugly 2 piece spark plugs that came apart and left behind the threads to extract with a special tool.

  • @jazpergodey2534
    @jazpergodey2534 2 месяца назад +7

    Was waiting for the ej25. Reminded me to check my oil.

    • @jcrnda
      @jcrnda 2 месяца назад

      And again tomorrow!

  • @nickwilliams-li6wr
    @nickwilliams-li6wr 2 месяца назад +4

    The 5.4 triton was only rubbish with the 3v. The 2 and 4v were great motors

  • @Evanx373
    @Evanx373 2 месяца назад +12

    Cylinder deactivation is still very unreliable and those engines dont last very long compared to non cd engines.

  • @broeheemed32
    @broeheemed32 2 месяца назад +6

    Regarding the Ford 5.4L..... you're conflating the issues of the earlier 2-valve with the later 3-valve. The 2-valve is the motor that "ejected" spark plugs, but rather than the low number of threads, the real problem is the torque specs. Ford listed the torque spec to be 11 lbs, but if they're tightened to 25 lbs, you won't see this problem. Maybe more threads would have made a difference at 11 lbs, but a quick turn of a wrench takes care of the issue. Personally, I have the 2-valve and have never launched a plug.
    It's the 3-valve that features 2-piece plugs that will break off in the cylinder head when attempting to remove them, and has the cam phaser issue, since it has variable valve timing that the 2-valve does not.

  • @chuckselvage3157
    @chuckselvage3157 2 месяца назад +12

    Aluminium block and iron heads? What were they thinking?? SMH.

  • @ChrisSpatz
    @ChrisSpatz 2 месяца назад +5

    I agree on the 2.8 when i was growing up nearly everyone was buying eay to mid 80' Rangers some had the 4cyl,1 had the 4cyl turbo, and a few had that 2.8. Mated with a 5spd that 2.8 was impressive at the time and they beat the hell outta their trucks

    • @RedneckSpaceman
      @RedneckSpaceman 2 месяца назад +1

      My previous vehicle was a 2003 Ranger. 2x4 3.0 V6. I hated to unload it, but, you know.
      Got a 2017 F150 2.7 Ecoboost. So far, no problems.

  • @JBLgaletzi
    @JBLgaletzi 2 месяца назад +4

    You forgot the kia/hyundai Theta 2.4L

  • @jdmlist27
    @jdmlist27 2 месяца назад +2

    The Ford 300 inline six is the champ.

  • @zackbrinkley1442
    @zackbrinkley1442 29 дней назад

    Maybe my mom just got lucky, but her 32 valve north star sedan deville was bulletproof. If I had it to do over again I would’ve bought it from her. It was the ultimate shaggin wagon.

  • @DougMedeiros
    @DougMedeiros 2 месяца назад +8

    Get rid is the awful sound track, I’m trying to listen to the narrator, no noise please.

    • @dyer2cycle
      @dyer2cycle 2 месяца назад +2

      AI narrator, also I believe...people need to put the effort into making these videos themselves and narrating them themselves...

  • @michaelcoonce6694
    @michaelcoonce6694 2 месяца назад +5

    I loved the iron duke. We had had several with n issues. I did get really good at changing headgaskets on the 2 2 though

  • @awesomusmaximus3766
    @awesomusmaximus3766 2 месяца назад +2

    GM should have continued production of the northstar V8 it had only a very minor design flaw

  • @foxlivecraft
    @foxlivecraft 2 месяца назад +4

    200k miles on northstar 4.6, Obviously after the bolt repair, no doubt as a small error can overshadow the durability of a great engine, if Cadillac had corrected that error in time its reliability would be impressive.

    • @anselpeneloperainblossom-s3489
      @anselpeneloperainblossom-s3489 2 месяца назад +3

      It would have gone down as one of the greatest engines ever had they not blundered the head bolts

    • @D41Michigan
      @D41Michigan 2 месяца назад

      It was the earlier Northstar V8s too. Pretty much all the major issues were fixed in the final years of it

    • @Gleone58
      @Gleone58 2 месяца назад

      Northstar performance head bolt kit that goes up in size and to course thread is a bulletproof fix. Kit comes with the jig drill and tap set

  • @TheFRiNgEguitars
    @TheFRiNgEguitars 2 месяца назад +2

    My 3000GT with the naturally aspirated 3.0 engine was reliable, and a fun car to drive. There were no issues! The timing belt however must be replaced every 60,000 miles, or it will break, bye bye engine!

  • @stfman1080
    @stfman1080 Месяц назад +1

    Where's the 1.4T GM ecotec?

  • @michaelcoonce6694
    @michaelcoonce6694 2 месяца назад +3

    What's funny I had several of those cars and had really good service

  • @johnscott9869
    @johnscott9869 2 месяца назад +1

    No mention of the BMW V10 ?

  • @jjojo2004
    @jjojo2004 2 месяца назад +9

    The GM 2.2 4cyl and Pontiac Iron Duke are easy to fix and very dependable. The USPS Grumman Mail Truck uses the GM 2.2. The USPS would not chose a motor that was not reliable in brutal stop and go operation. 😂😂😂😂

    • @gregorymalchuk272
      @gregorymalchuk272 Месяц назад +1

      The mail trucks from 1993 and before all use the Iron Duke.

    • @jeladsnikpoh1289
      @jeladsnikpoh1289 Месяц назад +1

      I had a Chevy Beretta with the 2.2. Before a few H.P. adders it was gutless, but never had a single reliability issue. My Iron Duke Fiero got a rod knock 2 days after I purchased it. Didn't know the tell-tell signs when I bought it (young, poor, and naive). My experience, I'd agree the 'Iron Duke' wasn't great, but the 2.2s shouldn't be on this list. There's millions still sluggishly pushing S10s down the road today! Take that off this list, and add the Ford Powerstroke 6.0 and 6.4 diesels.

  • @JDSly1
    @JDSly1 Месяц назад +1

    The Ford 3 cyl. was mentioned, but no mention of the Chevy Sprint/Geo Metro 1.0L three banger? Absolute garbage.

    • @josephhall7317
      @josephhall7317 Месяц назад +1

      I just got a 2025 Chevy Trax with the 1.2L 3 cylinder with the wet timing belt, started feeling kind of worried, but I paid extra for the 100k mile warranty, I put about 4k miles on vehicles every 2 months, so whenever that goes and probably destroys the engine at least can be a little at ease knowing I might get more miles out of it than the first one through warranty

  • @dtaylor5493
    @dtaylor5493 2 месяца назад +4

    In the right hands, the 350 diesel was an outstanding engine. Fuel efficient as all hell

    • @noahandthefurry4573
      @noahandthefurry4573 2 месяца назад +2

      i know i desperately want one because i LOVE the way it sounds and how a full size car with a 5.7 v8 gets 30MPG!

  • @JDSly1
    @JDSly1 Месяц назад

    While I was watching the Subaru EJ25 engine part of the vid came on and the video was immediately interrupted by...... a Subaru ad.
    Gotta love youtube.

  • @pauljansky7971
    @pauljansky7971 2 месяца назад

    great video - back ground music hurts my head

  • @patchouli3422
    @patchouli3422 Месяц назад

    Crazy the RENESIS wasn't mentioned.

  • @MrMopar413
    @MrMopar413 2 месяца назад +2

    I remember a lot of these engines. First the V-12 jaguar that was a mechanics nightmare. Not noted here but the engine water pump was buried down inside the middle of the engine. When they ran right they were awesome but if something went wrong, look out. Then Cadillac 8-6-4 that was garbage. Mechanics discontinued a lot of those cylinder control systems and the owner just let it operate in 8 cylinder mode and then the engine performed pretty good. Then at the same time GM had a throttle body fuel injection what was a nightmare even if just pulling the intake manifold because of coolant leaks, ask me how I know. Then ford with all its issues had a variable venture carburetor what a nightmare. Then that Chevy Vega all aluminum 4 cylinder what piece of crap that was. Then the Oldsmobile 350 diesel and all the other 350 ci engines that where converted to diesel engines where crap. I’m forgetting a lot of engines.

  • @Adamadam-pz3cz
    @Adamadam-pz3cz 2 месяца назад +1

    I like how most of these engines on this list are here because of the fact of planned obsolescence

  • @Davejust451
    @Davejust451 2 месяца назад +2

    3:07 min, I like the iron duke engine.

  • @busman2050
    @busman2050 2 месяца назад +2

    You forgot the Vega engine

  • @lescobrandon1011
    @lescobrandon1011 2 месяца назад

    I had a car with the Ford 2.8 liter engine. Never gave me any problems.

  • @steevestgermain2965
    @steevestgermain2965 2 месяца назад +3

    I see many ford 2.8 cologne with 300000 400000 miles on clock😊😊

  • @marcellinden7305
    @marcellinden7305 2 месяца назад

    Nil Toyota's on the list.... Yay!

  • @ek2013_
    @ek2013_ 2 месяца назад

    You forgot to mention the 6.4 Powerstroke. I love fords and the powerstroke engines, my personal being a 7.3, but the 6.4 was bad. It was prone to all kinds of catastrophic failures. Quite a sour ending to the Ford/International Navistar collaboration.

  • @finnhalland6918
    @finnhalland6918 2 месяца назад +1

    Thanks for evs!

  • @Wizard6
    @Wizard6 Месяц назад

    Hey guys, YOU forgot the Dodge/Chrysler 3.7 and 4.7 !! These engines like to drop valve seats or overheat and crack the cylinder Heads. They are very hard to remove and hard to get back together!!!! JEEP means JUST EMPTY EVERY POCKET!

  • @kentkrueger6035
    @kentkrueger6035 2 месяца назад +2

    Ht4100 had an aluminum block and cast iron heads? Apparently GM didn't learn from the Chevrolet 2.3 liter Vega 4 cylinder. Hope they fired those engineers.

    • @BillLaBrie
      @BillLaBrie 2 месяца назад +1

      The ht4100 became the ht4900 which had a great reputation.

  • @koyotekola6916
    @koyotekola6916 2 месяца назад +1

    How can people who call themselves design engineers put out such crap? They're probably at bars claiming they just invented the wheel.

  • @shemaijenkins9547
    @shemaijenkins9547 Месяц назад

    Didn’t GM have that same issue with the 2006-2008 5.3 V8 Active DOD?

  • @joeaviles2419
    @joeaviles2419 Месяц назад

    Cant have the 2.2 and 2.5 in so close in the same videos bro, after dealing with mail trucks (llvs) for several years, that 2.2 compared to a 2.5 is like comparing a Fiat to an old Toyota diesel, respectively.

  • @ken9190
    @ken9190 2 месяца назад +3

    Why did you show a Cummins when talking about a Ford?

    • @alzaidi7739
      @alzaidi7739 2 месяца назад +4

      These are AI generated.

    • @mikefrech1123
      @mikefrech1123 2 месяца назад +4

      Also shown was a brake master cylinder when talking about the Vega engine.

  • @Farmeroutwest
    @Farmeroutwest Месяц назад

    I woulda put the RX8 rotary engine somewhere in there. Practically disposable engines with poor longevity. See them for sale all the time stating engine was replaced.

  • @youngblood2
    @youngblood2 2 месяца назад +2

    These are all obscure engines! Talk about popular engines!

  • @spiritualhouse2
    @spiritualhouse2 2 месяца назад +2

    I dont like fords but i dont agree with the 4.2 being on this list

  • @kaedekurosawa
    @kaedekurosawa 2 месяца назад +1

    Not a single Nissan engine in there, huh? Interesting.

    • @D41Michigan
      @D41Michigan 2 месяца назад

      That's cuz most of nissans engines are fairly solid....now the 4cyls after 2010....yeah a lot of them are hit n miss. VQs are great overall with minor issues here an there. The VKs , pretty much the V8 version of the VQ are solid too...
      Now the VR30 is hit n miss but the VR38 is bullet proof. We will have to see how the new VR35 is.
      I've got a VQ38 and a lot of techs are saying that's currently the most reliable one to get these days

  • @javichaguin1593
    @javichaguin1593 Месяц назад

    Nsu Ro80, Ingenium, Puretech...

  • @rjdavis7503
    @rjdavis7503 2 месяца назад +2

    Other than the 1 liter EB, Fords EB engines are a great lineup.

  • @bulmarogomez2567
    @bulmarogomez2567 2 месяца назад +2

    I have a Dodge Charger with the v6 2.7. It currently has 180,000 and it's running great. I have changed the timing chain, water pump, oil pump and cooling fan and it's running really good. I like the gas mileage I get out of it.

    • @TheCRTman
      @TheCRTman 2 месяца назад +1

      That's a ton of work done to an engine with only 180,000 miles though.

    • @DougMedeiros
      @DougMedeiros 2 месяца назад

      @@bulmarogomez2567 most people neglected them and drove short distances and the crankcase ventilation system was not good.

  • @Modernnannenginemarineengine
    @Modernnannenginemarineengine 2 месяца назад

    The Water pump on the V6 engines. Were horrible. Causing over heating and blown heads. Same like the V4 van engines. 1974.

  • @Diesel-powered
    @Diesel-powered 2 месяца назад +1

    Never beat a small block chevy

  • @youknowit888-kt4en
    @youknowit888-kt4en 2 месяца назад +1

    The GM 3.6 V6 says between 2005-2010 but it's still trash to this day. And GM fixed the Northstar V8 right before they killed it. 2005 and up are good 2 go!

  • @BigRedTower
    @BigRedTower Месяц назад

    They all have the same weaknesses. Almost like they were designed to be unreliable and boost auto sales.

  • @Wizard6
    @Wizard6 Месяц назад

    I had a Pinto with the 2.8 v6 that I was UNDERWHELMED with in 78 pinto hatchback. Plugs were hard to change, The Oil Pressure with required you to lift/remove the engine out cause it was up front right on top of the left motor mount and constantly leaked. The valve covers constantly leaked and were very hard to change, too many hoses and wires to remove to get to the valve covers. It also ran thru water pumps and you had to drop the rack and pinion to change the starter. The silver paint was terrible and faded to gray in 2 years. It also liked to use oil if you ran it over 60-65 on the highway. My least favorite engine and haven't owned a Ford since!!!!! If I ever buy a Ford again, Please arrest me and put me in an insane asylum, cause, I've lost my mind. Had a Mustang II with a 2.3 4 cylinder that taught me about " Piston Slap in 76 ". I'm surprised it didn't show up on the worst engine top 20!!!!

  • @christianemmanuelf.domingo793
    @christianemmanuelf.domingo793 2 месяца назад +1

    Welp now that u detect the problem, make, sell improved after market parts to make said unreliable inventions reliable again

  • @djpalindrome
    @djpalindrome 2 месяца назад +2

    So were most of these turkeys a direct consequence of government smog and fuel-mileage dictates?

  • @STScott-qo4pw
    @STScott-qo4pw 2 месяца назад

    GM 283 cu inch v8. Couldn't kill it. 1966 parisienne. 😊
    VW 1.7 litre inl 4. Constant distributor failure. Junk. 3 distributors in 2 yrs on Dodge Omni.

  • @davidoneill2466
    @davidoneill2466 2 месяца назад

    Great example of why electric propulsion IS the future of transportation….

  • @johnkeen2345
    @johnkeen2345 2 месяца назад +1

    Where's the PSA / Mini engine? Now they are 💩 on a different level...

  • @casey896
    @casey896 2 месяца назад

    How many times can you hear the word “however” being said in this video??

  • @jasonhumphry5836
    @jasonhumphry5836 2 месяца назад

    Just about every fact for the 350 oldsmobile diesel section is wrong

  • @Hoggdoc1946
    @Hoggdoc1946 2 месяца назад +1

    In the first couple of minutes, this video is full of photos of engines that are not even the engine they're talking about. This is another one of those sites or channels that puts up crap like this to get viewers and make money with piss poor content.

  • @stephenkiszenia79
    @stephenkiszenia79 2 месяца назад

    Ford 2.5 liter is the greatest engine ever.

  • @wymple09
    @wymple09 2 месяца назад +2

    Several of these engines get an undue bad rap. I've seen a lot of Northstars, 2,2 Chevies, and 3.6 and iron Dukes with well North of 250K. Just keep the oil changes up to date. The worst on this list are the 2.8 Ford & the 1.3 Ford. Chrysler's 2.7 was a bad joke by design.

  • @tolis3310
    @tolis3310 2 месяца назад

    Strange, not a single Italian or French engine in this list...

    • @youssefsabiri3860
      @youssefsabiri3860 2 месяца назад

      Italian engine ?!! 😂 they are very reliable by the way. Most of The french yes, they are bad

  • @toddjensen692
    @toddjensen692 2 месяца назад

    I disagree with the order

  • @DeejayMC25
    @DeejayMC25 Месяц назад

    gm 1.4 turbo

  • @heystuwie7778
    @heystuwie7778 2 месяца назад

    The 3.6 gm v6 shows Cadillacs 3.6tt 😂 there are not the same timing is revised and heads are different

    • @heystuwie7778
      @heystuwie7778 2 месяца назад

      Although the block is the same? One wonders if the turbos bolt on

  • @Tartneznok
    @Tartneznok Месяц назад

    The VW EA188 part shows that you have no clue what you are talking about. The 1.9 TDI variants are one of the most reliable engines of all time. Of course there are bad models like the 2.0 TDI, but that doesn't make it "least reliable". The focus on this video seems to be mostly on American engines, so maybe you didn't have all the same engines as Europe.

  • @zabryant01
    @zabryant01 Месяц назад

    Wow what a list this is. It didn’t even include the Hyundai-Kia 2.4 theta 2 gdi engine. The worst engine they’ve made and one of the worst ever made in history.

  • @AustinDemeyere
    @AustinDemeyere 2 месяца назад +1

    Rich piana

  • @budphillips5968
    @budphillips5968 Месяц назад

    This is why I only buy Honda

  • @rodneyrichardson8286
    @rodneyrichardson8286 2 месяца назад

    It seems these car companies have learned lessons of their past.their still producing junk.

  • @lise1255
    @lise1255 2 месяца назад

    It seems American motors are overrepresented among badly designed motors. - And Americans wonder why American cars don't sell in Europe 😂.

  • @MadMadSanClash
    @MadMadSanClash 2 месяца назад

    ا👍👍👍👏👏👏❤️❤️❤️✋️✌️⚘️🥰🥰🥰

  • @MadMadSanClash
    @MadMadSanClash 2 месяца назад

    ا❤❤❤❤❤❤😮😮😮👏👍🎉

  • @merryme9766
    @merryme9766 2 месяца назад

    Engineering of grease monkeying 20 30 40 doll ours of decadence Lange Sang Sign....😮

  • @andrewhixson2235
    @andrewhixson2235 Месяц назад

    Alot of Ford engines on this list. Just saying.

  • @Xenon_Proto
    @Xenon_Proto Месяц назад

    Look little bro I know you might blow ass at riding scripts, but anything… ANY THING is better than this ai slop.

  • @christophermarshall5765
    @christophermarshall5765 2 месяца назад

    Mostly GM engines. What a surprise……. NOT!!

  • @negropolis4042
    @negropolis4042 2 месяца назад

    This engine all american american engine rubish ugly old petrol drink. Where saab engine where audi 1.8t engine toyota 1uzfe.

    • @1Barsamian
      @1Barsamian 2 месяца назад

      I in light of designs that came out of Britain, from aircraft (and even some of the early vaunted RR engines - throwing hot turban blades) to archaic car engines and transmissions, I don’t think British folks should be complaining about an engineering design from anybody else. I’ll be the first to admit, US General Motors, Ford and Chrysler/Stilantis make garbage, however, Leyland and Vauxhall are much worse. And Rolls-Royce, considering what you pay for it, is just insane. Tell the other companies in the world to compete in the market, did you do this by buying Japanese.

  • @Wuggieee
    @Wuggieee 2 месяца назад +1

    Sb chevy is number one for being trash

    • @a3300000
      @a3300000 2 месяца назад +1

      🤦‍♂️