rev up your engines, All says Scotty greetings from Lebanon, why are
blown head gaskets a popular problem why are companies still doing wrong, okay the
reason that happens is because they're making cars cheaper than they used to
to save money, let's say you get a really old car, the
head bolts those are the bolts that hold the head onto the block and a head
gasket is in the middle, let's say they used to have 20 head bolts, cost more
money to put 20 head bolts in and design it, then they decide instead of 20 head
bolts let's only put in 14, well that means the head bolts are further apart
so the head gaskets have less clamping pressure in between them and they have a
more readily chance of blowing the head gasket because there's less clamping
pressure and it's just cheaper engineering is basically what it is, and
that's why engines that didn't use the blow head gaskets would blow head
gaskets presently, because they were making them cheaper just to save money
when they produce the things, continents Scotty I have a 2012 Mazda cx-9
sometimes the transmission jolts and won't completely shift gears what could
it be, but also is it a good car what are your thoughts on it
no unfortunately they're horrible cars as they age, they've got problems both
with a variable valve timing system and the engine, but the big thing is they
have horrible automatic transmissions, yours is starting to go out, it's typical
on those, that's why I tell people, don't buy a Mazda, if you have to buy a Mazda
get a standard transmission, the standard transmissions are relatively bulletproof
I got customers with Mazdas with standard trannys and they have two 300 thousand
miles and they still run okay, but their automatics are garbage, if I were you I'd
warm the thing up and trade it in get rid of it get a Toyota or get a Honda
because it's gonna bankrupt you in the short run, if you do have to finally
rebuilt that transmission in that thing, it's gonna cost you anywhere
between three and six thousand dollars to have it done correctly
John Maurice says Scotty I apologize in advance, what are you apologizing for
I'm answering people's questions it's what I'm
here for, I got a 2019 Jeep Grand Cherokee with a 5.7 Hemi and an 8-speed
transmission made in Germany what should I do to make sure it will last ten plus
years, okay change the oil a lot in the engine, realize that ZF transmission now it's a
German ZF transmission they're actually pretty well made transmissions
and the hemi engines if you don't overheat them and you don't do too many
burnouts in them, they can last a really long time, you know that's one of the
better design ones that they ever had, superhot fire says Scotty what can I
do to increase horsepower without wearing out my engine, I have a small
racing turbo and a catback exhaust it's the Mercedes Benz C 300, well you've
already did all you should possibly do in that thing, realize those things are
endless money pits to begin with and now you put a turbo and a cat back exhaust
on it, I mean be happy with what it does the C 300 is not a race car and you got
some more boost, you put too much boost in it you'll blow the engine, those aren't
raising engines they're not made for racing, you get enough power that you
have and to top it off with what you're doing you're gonna burn the transmission out,
all the ones I ever saw those Mercedes had automatic transmissions and you'll
burn it out if you have too much power going to that transmission, the
transmission wasn't made for that power realize any time you want serious power
and you're really going to build up a vehicle, you have to do the engine and
the transmission, because if you do the engine and you don't touch the tranny,
the trannys gonna burn itself out in very little time if you put a ton of
horsepower on it, if I were you I'd be happy with what you have, I realize that
you know that those things are money pits anyways
and the more you build them up, the more things are gonna break as they age, Jerry
g says I got a 2015 v6 Dodge Challenger 8-speed Auto and it was hard downshifts
from coming to a stop I didn't climb or till, I took it to dealer did a software
update but it's still doing the same thing, yeah you know that's a problem
with those cars, those eight speeds they had a lot of problems with and all the
time even though their manufacturers having the same problem with their
eight-speed automatics, rather than saying oh geez we got to rebuild all
these things we didn't make them right, they come up with some bs software
update and say that's gonna fix it, a lot of times it doesn't, I would take it back
I would force them to go on a road test and say, see it's not working right, hey
it's their problem they didn't build the cars right, but a lot of times you won't
get too far with them, they'll just say, well we put in the update that's all we
can do, my advice is vote with your money, never
buy another one of those products, when they sell you this junk, don't buy
another one, that's the advantage of our capitalist system, nobody forces you to
buy any particular car, you can buy whatever one you want to buy and if you
see one has problems, never buy another one from that manufacture if they don't
stand behind them, everybody can make mistakes and if they stand behind them
great, but half the time they just lie and say, well yeah I'll do that and maybe
they do but they're not supposed to, so if you never want to miss another one of
my new car repair videos, remember to ring that Bell!