rev up your engines, Jack see says Scotty
I got an 05 Nissan Altima runs great but the underside has bad rust
there's even a hole in the passenger side floor panel, is there any way to
control the rust what can I do, okay unfortunately like Neil Young sand rust
never sleeps and it doesn't once, rust starts, the metal actually rusts from
the inside out, it's rotting away, now where the hole is you could cut out the
hole, and have a guy weld in a piece of steel or aluminum pan so you don't have a hole
there and if you want you could try having somebody sand it all down the
underside the rusty parts and then spray it all with rust preventatives and under
coating and stuff and it'll slow it down but really the undercoating stuff is
best on a brand new vehicle when it's made like most new cars are made with
special paint that's electrostatically put in when the frame and the body goes
into a giant little lake of paint and the electrostatic charge of ones
negative once positive and it sticks even goes inside the frame, so then you
don't worry about rusting, but on older cars once they start rusting it's pretty
much you can't do that much to stop it, because it started, like I said you sand
it down get it coated but it'll still keep falling apart, once it rusts starts it's
pretty much the end of a vehicle, south-korean says hey Scotty I got a
2007 Chrysler 300 SRT what do you think about that, they are fun to drive they're
stinking fast cars I got customers with them and I love it when I work on them
to road-test them because they are screamers, but that said they're
extremely expensive to repair when they break, it's not automatic that's one of
the weakest points of those things and as for the engine it's a very strong
engine but you do want to take care of it, don't listen to the garbage that people
tell you that you can change your oil every 10,000 miles, I would change the oil on
that every 5,000 miles religiously with synthetic oil make it last as long as it
can because when an engine or transmission does break, it's more money than
the car is worth to fix it in most cases if you have an automatic, sky high says
is a turbo cooldown necessary on a diesel engine, they always used to tell
you to cool them down because they wanted things to last a long time and
that was a good idea, see here's the thing, you're driving your car the turbo
spins faster than anything the exhaust gas spins it then it Rams air into the
engine, most modern cars have turbos that are either oil cooled or oil and water
cooled, so they run at a pretty decent temperature that you're
not gonna really have any problems with it just shutting off when you're done
driving, unless you're racing around like a
lunatic and if you are driving as hard as you can, then I'd let it cool down for
a minute or two before I'd shut it down, now the reason they told the really old
cars like in a 60s and 70s to let the turbo cool down was because a lot of
those were naked turbos, they didn't have water cooling and a lot of them didn't
have engine oil cooling, and so they would get really hot and if you didn't
let them idle and cool down a little bit, they would warp and they would wear out
faster, but on most really modern ones that are oil or water cooled you really
don't need to cool it down when you shut them off, unless like I said you're
racing around like a maniac, minty Channel says Scotty I'm thinking about
buying a 90s Ford f150 5-speed 4 wheel drive what's your opinion what
should I look out for, okay if it's in good shape they can be an excellent truck
because it's the 5-speed the 5-speed makes the big deal of difference the
things that wear out on those are the automatic transmission you get a
standard and you want a four-wheel-drive truck, hey, now it's a ninety so you know it's
pushing 30 years old, you want to always pay a mechanic like me to check it out
before you buy it, so they can check the transfer case they
can check the engine, they can see it depends on what 90s, if it was pre 95 the
scan tools don't do much but if it's 96 up, the scan tools can tell you an awful
lot, so you'd want it checked out with a scan tool it was 95 or newer, but they
can be excellent trucks you know it will have a little bit of wear but you can always
fix them because parts are available for them and they were pretty well built
especially with a standard transmission, ghost 88 says Scotty my 07 Corolla got
mechanically stopped at two hundred ninety nine thousand nine hundred ninety
nine miles on speedometer the dealer wants 580 to replace it, should I go to my
local or mechanic replace it one from another, yes I mean we mechanics do the
time, go to a junkyard buy used one and put it in, those things are so
expensive if you want to buy a new one they cost a ton of money and in my case
the ones that I normally fix for my customers, I go to a junkyard I can get a
whole dash for older ones for like 70-80 bucks I just popped the dash out takes 20 minutes
and pop the new dash in and away you go, George says Scotty greeting
from Moldova by Audi a3 makes a grinding noise when steering and sharp corners
left and right, even when stationary I turn it all the way what could
be the problem, first thing you want to do is have a mechanic look at your power
steering pump, make sure it's full fluid we actually have gauges we can hook up
to it and we can see if the pumps going out and when it gets to all the way to
the edge you turn hard, if it has to work hard and it's wearing out it can make
noises so have that checked too, the other thing is you want to check since you
said it'll do it sometimes even if it's sitting on the ground you turn it all
the way, you want to have a mechanic check the power steering rack because if
the racks going out, when you go the whole way to the edge it strains and if
the racks wearing a lot of times it'll make horrible noises either way it's an
expensive endeavor to fix on an Audi I mean if it's drives okay otherwise and
you have steering that doesn't bind it go smooth, as long as the fluid is full I
probably live with that particular problem, because the racks and the power
steering pumps on those Audis cost a small fortune, so if you never want to
miss another one of my new car repair videos, remember to ring that Bell,!