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Symptoms of a Bad or Failing Differential Gasket
If you find traces of oil on the underside of the differential, puddles of fluid, or whining sounds, you may need to replace the differential gasket.
Symptoms of a Bad or Failing Differential Output Seal
Common signs include whining sounds and oil leaks coming from the differential.
Symptoms of a Bad or Failing Front Output Shaft Bearing
Common signs include a noisy drivetrain, excessive vibrations, and oil leaking from the transfer case in all-wheel or four-wheel vehicles.
Symptoms of a Bad or Failing Headlight Door Motor
If the headlight doors are stuck open, stuck closed, or make a grinding noise, you may need to replace the headlight door motor.
Symptoms of Bad or Failing Spring Insulators
Common signs include the vehicle bottoming out, excessive road noise, grinding noises while turning, and damage to front tires and brakes.
Symptoms of a Bad or Failing Transfer Case Output Shaft Seal
Common signs include difficulty shifting gears, grinding noises coming from underneath the vehicle, and jumping in and out of four-wheel drive.
How Long Does a Drive Belt Tensioner Last?
In order to keep the proper tension on your vehicle's serpentine belt, a drive belt tensioner is used. This is a pulley that is either mounted to an adjustable pivot point...
How Long Does a Differential / Gear Oil Last?
The differential is normally located at the rear of your vehicle and underneath the car. It is essential that it stays lubricated with differential or gear oil for it to work properly and...
How Long Does a Timing Cover Last?
A timing cover protects parts such as the timing belt, timing chain, and gears inside of your vehicle. They are made from either plastic, metal, or a combination of synthetic materials....

Related questions

Question
Security system on my new to me car has been toggled on.
Hi there. Try taking the key and putting it in the driver door and unlocking and locking the door 3 times. This will make the computer acknowledge the key and finalize the programming. For the dash sound, that could be...
Question
I put my vehicle into 4WD and heard a grinding noise. I took it out and put it in 2WD and It started to make some noise.
Hi there. Jack up the vehicle and put it on jack stands. Make sure that all 4 wheels are off the ground. Put the transfer case in 4WD, the transmission in drive, and let off the brake. Check to see...
Question
My clutch is stuck. I can still change gears but with a grinding noise.
Hey there. Your clutch is hydraulically operated. The clutch slave cylinder uses brake fluid from the master cylinder to engage and disengage the clutch. If the brake fluid level is good and the return spring on top of the clutch...
Question
I can hear the grinding sound when I stop and drive again.
Hello. The symptoms you describe are commonly associated with worn brakes. When the brakes are applied, the brake calipers compress the brake pads against the rotors to slow the vehicle. Over time, the brake pads and rotors will eventually wear...
Question
Oil pressure light and grinding noise on startup
Hi there. Assuming, the engine is not turning over. The grinding noise you hear may be the starter drive gear failing. The oil light popped up on the dash with the engine not running would be considered normal. If...
Question
Very loud grinding on acceleration worse on turns
Hi there. Typically a bad motor mount will make a clunking sounds as the vehicle begins to accelerate or decelerate. The grinding sound while acceleration and turning is a common symptom of a bad or failing wheel bearing as you've...
Question
Right turn produces noise - 2011 Toyota Camry
Hi there. It sounds like you have a wheel bearing or axle failure. A failing wheel bearing will generally produce more noise when loaded; LF when turning right and RF when turning left. An axle can produce similar noise if...
Question
Crackling, grinding noise coming from the front.
As you are guessing, yes, the noise could be due to wear or a failure in the transmission or differential. A trained mechanic will sometimes be able to "source" the noise simply on inspection, once he or she hears it....
Question
My car brakes automatically after 20km/hr with a grinding noise.
This is likely due to the wheel sensor being damaged. As you know, these sensors monitor wheel speeds and depending on the conditions will trigger the ABS or traction control system to engage. Due to the damage your car sustained,...
Question
Noisy grinding sound when turning wheels left or right
This is a common sign of worn out wheel bearings. Bearing noise can sound a lot like a brake pad dragging or grinding. It can also sound like whirring, whining or humming depending on how much sound deadening material your...
Question
GRINDING NOISE WHILE BRAKING
This may be a sign of warped brake rotors. As you may know, when you press on your brake pedal, this activates a hydraulic pressure which forces small pistons inside your brake calipers to push the brake pads against the...
Question
Grinding noise when steering left or right.
This is a common symptom of failing wheel bearings. A wheel bearing will usually fail due to pitting or small damage on the surface of the rollers or the bearing race. Both the surface of the rollers and the race...
Question
My car is making a grinding noise. Could it be the harmonic balancer?
The harmonic balance does not have a bearing in it. There are various tensioner pulleys in your serpentine belt system that do have bearings in them that can cause this type of grinding sound when they are worn out. ...
Question
Steering shakes and makes horrible noise at low speed 2011 GMC Acadia
Hi and thanks for contacting YourMechanic. From what you said and what was displayed on the video your power steering pump is making the humming noise as if the pump is lacking of oil, but the shaking of vehicle and...
Question
There is an inconsistent grinding noise when I press the brake
You may be hearing the normal metallic material in your new pads rubbing on the rotors. The material in some types of brake pads has metallic bits of metal in the brake pad when it is made. Sometimes clumps of...
Question
Hear engine grinding noise at idle only-park or drive. Then goes away above idle. Not AC or any pumps. What is it?
Hi there. In many cases, the grinding noise coming from an engine at idle and in park can be caused by a VVT solenoid or switch. Typically solenoid problems are caused by dirty oil, which clogs the screen that sits...
Question
Car will not shift into any gear. When I put car in park, it makes a grinding noise.
If the gears are not engaging and there is a grinding noise, then it is very possible that there is a failure within the transmission. The noise could be from a front pump failure or possible main shaft damage within...
Question
My car makes a grinding noise when shifting to reverse
The first thing to check is the transmission fluid level. If fluid level is okay, then the most likely problem causing a poor reverse engagement is low fluid pressure in the transmission. This could be caused by a worn pressure...
Question
When I put my car into drive it makes a loud grinding noise and doesnt move.
Hi there. The transmission may have broken the differential or a CV shaft (constant velocity shaft). If a CV shaft was to break, then all of the power will go to the broken shaft. When you said that you stopped...
Question
My car is making a crunching noise, even rolling in neutral. More so on uneven ground.
A hard grinding noise especially when braking is generally a sign there is a bad wheel bearing or there may be metal on metal contact on the brake rotor from a completely worn brake pad. If the grind is bad...

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