Why is my car shaking while in park
Top 5 Reasons Your Car is Shaking or Vibrating - Symptoms and Fixes Included
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hey how's it going do it yourselfers so
I get this question a lot in the comment
section which is hey ratchets my car is
shaking what the hell is wrong so today
I'm going to cover the top five main
reasons why your car may be shaking so
make sure you stay tuned and then watch
the entire video alright so coming out
at number five and in order to get the
basics out of the way your car may be
shaking if your engine has a misfire or
worse if you have a multi cylinder
misfire now sometimes if you have a
misfire you get a check engine later if
you have a multi cylinder misfire your
check engine light will actually start
to flash but you may not always get a
check engine light if you have a misfire
especially if it just started happening
now symptoms of you of a misfire that's
causing your car to shake well if it's
misfire that's related to your ignition
problem it will usually show under load
like if you're behind the red light and
you're trying to get going and you step
on the gas but you feel a bit of a
hesitation or you know bit of a miss for
lack of a better term then that could
indicate a problem with your engine
having a misfire which is causing your
car to shake or hesitate so yeah if you
feeling hesitation or vibration inside
the cabin when you're putting the car
under load whether you're trying to
floor the gas but trying to get going
from a dead stop where you're going up
hill we're trying to race someone on the
freeway and you feel that hesitation and
vibration then that could be due to a
misfire and you need to get that checked
out before you move forward all right
coming up number four feeling vibration
whenever you press on the brake pedal
alright so if you feel vibration inside
the cabin only and only if you press on
the brake pedal then you more than
likely have uneven wear on your brake
rotors and/or your brake pads this could
be due to a few reasons maybe the piston
inside the brake caliper is sticking not
working properly maybe the slide pins I
have lost the lubrication not allowing
for the engagement and disengagement of
the brake pads but again whatever the
reason is if the shaking is only
happening when you apply your brakes the
problem is with your brake pads and it's
usually up front because you do most of
the braking with your brakes on the
front wheels yeah there's only a certain
amount of tolerance allowed on the brake
rotors before they warp too much and
then cause that vibration you feel so if
you have that problem you need to get
the rotors checked measured make sure
it's within that specification and if
it's not you need to either machine them
or replace them along with
your brake pads and the hardware for
your brake caliper
all right so card number three you feel
vibration at highway speeds between
let's say 55 to 75 miles per hour now if
that's the case 80 to 90 percent of time
is due to your tire being out of balance
see when tires are made and when they
come out of the factory the material
that makes this tire let's say that
rubber is not exactly perfectly spread
out throughout this tire you might have
a maybe a small bulge or maybe a little
bit more material thickness in one
corner and then when you're going at
high speeds and this tire is spinning
very fast that extra weight in that site
will pull the tire and cause vibration
so you're gonna have to get these tires
balanced before you put them on the car
so yes at the tire shops they place
these tires with the wheels on the tire
balancer and then they add these weights
that you see here in order to have the
tire be more even as far as weight goes
all around but again that's only eighty
to ninety percent of the time that if
you feel shaking inside the cabin at
highway speeds
it's due to a tire that's not balanced
the other ten or twenty percent is a bit
tricky but a way to understand this
properly pretty much anything that spins
outside of your transmission if it's out
of balance or damaged it's gonna cost a
king at those speeds so let's say if you
have a severely damaged wheel that's
gonna cause shaking but if you have a
damaged tire maybe this tire has been
sitting flat for a long time it's
bulging and out of shape and out of
sorts in one area that's gonna call
shaking no amount of tire balancing is
gonna get rid of that if you're a
front-wheel drive this CV axle sometimes
it has to be balanced other times if
it's damaged or missing the weight on it
is gonna cause shaking as well or if you
have a real wheel drive like this truck
if you have a damaged or out of balance
driveshaft that's gonna cause shaking as
well now here's a funny one if you have
an older car with those steel wheels
that use the plastic hubcaps that goes
around the entire wheel but at the
plastic hubcap is broken let's say in
half but still on the wheel because the
the metal framing is not damaged that
could cause vibration at highway speeds
as well all right coming out number two
feeling no vibration in the car
when the transmission is in pork butt
getting vibration inside the cabin when
it's put in Drive and if that's the case
not always but the main culprit is going
to be your motor and/or your
transmission mounts so on a setup like
this you usually have three motor mounts
you got a rear motor mount from motor
mount and then you have a side motor
mount and then on this side you have a
transmission mount and obviously there's
all of these mounts is to attach your
engine and transmission to the chassis
of your car that's kind of important so
here's an example of a motor mount here
this part goes to the motor this part
goes to the chassis and as you can see
they're connected to one another through
this rubber part around here and the Joe
of that rubber part of the motor or
transmission mount is to dampen the
vibration from your engine or
transmission so when it gets passed
through the chassis to the cabin you
feel it less so every time you put your
car and drive your engine and
transmission are applying a bit of
torque to your wheels and if this is
broken that torque is going to shake
this and then that vibration and shake
is going to be transferred to the
chassis and then you're going to feel
inside the cabin and obviously if the
car is in park or neutral no torque is
being applied therefore there's going to
be very little vibration and even if you
have bad motor mounts you're not going
to feel it inside the cabin usually now
if you suspect this problem one thing
you can do is to brake torque the engine
and then check for excessive movement
basically you turn on the car put your
foot on the brake pedal make sure your
emergency parking brakes are engaged
then you press the car and drive then
with your other foot you tap the gas
pedal and check for excessive movement
of the engine or transmission now some
movement is normal as you can see in
this video this Court does not have bad
motor or transmission mounts but if you
feel a big jolt then that could indicate
a problem with your mounts and then you
should also do the same thing in Reverse
and then again check for vibration but
in order to verify this you really must
do a visual inspection of your motor and
transmission mounts now there's
something else that's usually overlooked
that has the same exact symptoms as bad
motor or transmission mounts which is
the use of aftermarket cv axles so yeah
and this phone will drive vehicles if
you get an aftermarket CV axle the joint
up here is not built to the same
standards as the OEM ones
so yeah when the core manufacturers make
these cars and they make that CV axle
the the CV joint is really what we're
talking about actually they make that
joint with some give for lack of a
better term so that the the harshness
and the vibration from the engine is not
transferred through the CV axle to the
to the wheel hub then from there to the
strut tower to the chassis and then so
that you don't feel that inside the
cabin but when you buy an aftermarket
one is not built to the same spec and it
usually has less give for lack of a
better term again and that harshness
then if uses an aftermarket CV axle is
transferred from the engine through the
CV axle and the joint and then it goes
from there again to the wheel hub let's
say the control arms then to the chassis
then to the cabin alright up next at
number one if you feel vibration in the
steering wheel if you're going over
bumps for example or maybe even if
you're trying to accelerate from a dead
stop if your vibration in low speeds
then that usually indicates a problem
with either your inner tie rods or outer
tie rods so yeah basically your inner
tie rod is attached to your steering
rack and pinion and then the outer tie
rod is attached to your steering knuckle
and then there is a ball joints at each
end now what happens is that ball joint
the protective layer inside that ball
joint wears out and then you have too
much give in the tie rods and you have
too much give you know every time your
try to accelerate then you're gonna have
vibration they're not going to be held
firmly your steering wheel is not gonna
feel right you're not gonna feel that
responsiveness that you should feel
inset in your steering wheel and you're
gonna have vibration and in order to
verify a tie rod problem you need to
raise and support the front of your car
put your arms or hands on the three and
nine o'clock position on the wheels and
then try to rock it to the left and to
the right and then visually try to
verify that movement and a worn or bad
tie rod and and see whether it's on the
inside or inner tie rod in or on the
outside or the outer tie rod and some of
the symptoms of a bad tire rotten or
excessive or uneven wear on your tires
and again vibration lack of a steering
response or maybe even your car pulling
to the right or to the left alright guys
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watching I'll see you guys next thing
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