Showing articles & questions for topic
seals

Related articles

Is it Safe to Drive with a Leaking Axle Seal?
An An axle seal is the part of the vehicle that connects the axle to the rear differential, or the transmission. The purpose of the axle seal is to keep transmission fluid from leaking. Depending on the size of the...
What Are the Risks of Switching to Synthetic Oil in Older Cars?
Older cars usually have to use conventional motor oil instead of synthetic motor oil. Switching to synthetic can cause engine leaks or engine damage.
What Is the Purpose of Engine Gaskets?
Engine gaskets work as seals to maintain pressure, hold fluids, and prevent debris from entering the engine. Gaskets are vital for engine performance.
How to Replace a Wheel Seal
Wheel seals are part of the wheel bearing system and keep dirt and debris away from these bearings. Replace wheel seals if grease leaks from bearings.
How to Replace a Transfer Case Output Shaft Seal
A transfer case output shaft moves torque from the powertrain to the rear wheels of a 4WD, using the transfer case output shaft seal to stay in place.
How to Replace a Differential Output Seal
Differential output seals prevent fluid from leaking out of the differential, causing the differential to overheat and cause damage to your car.
How to Replace a Camshaft Seal
Camshaft seals are round, rubber oil seals between cylinder heads and valve cover gaskets. Worn out cam seals need to be replaced to prevent oil loss.
How to Replace a Pitman Arm Shaft Seal
The pitman arm attaches to the steering box via a shaft. To prevent leaks and driveability issues, the pitman arm shaft seal is used on this shaft.
How to Replace a Power Steering Input Shaft Seal
A faulty power steering input shaft seal can cause hydraulic fluid to leak from the power steering input shaft and cause the system to overheat.
How to Replace a Pinion Seal
A pinion seal keeps oil in the differential and keeps water, dirt, and debris out. A failing pinion seal will leak which can ruin the differential.
How to Replace a Front Output Shaft Oil Seal on Most Cars
The oil seal on the front output shaft is faulty when there are unusual noises or leaking coming from the transfer case.
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 to Replace a Crankshaft Seal
Engine oil leaks are prevented by the crankshaft seal. Replacing one requires several tools, such as a dead blow hammer and a strap wrench.
How to Replace Axle Seals
Axle seals fail when there is a visible leak or a major puddle of gear oil underneath the vehicle. In some cases, the axle may pop out entirely.
Symptoms of a Bad or Failing Pinion Shaft Oil Seal
Common signs include leaking, low fluid in the differential, and grinding noises when the vehicle is running.
Symptoms of a Bad or Failing Pinion Seal
Common signs include a leaking pinion seal, low fluid in the differential, and a whining noise while the vehicle is in motion.
Symptoms of a Bad or Failing Front Output Shaft Oil Seal
If your car has all- or four-wheel drive and there is noise or fluid leaking from the transfer case, consider replacing the front output shaft seal.
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 Crankshaft Seal
If your car is reaching high mileage or is experiencing oil leaks, it may be time to replace the crankshaft seal.
Symptoms of a Bad or Failing Camshaft Seal
Visible signs of oil leakage and smoke coming from the engine bay can point to a failing camshaft seal.

Related questions

Question
Water pump needs replacing
Hello, a coolant leak should be repaired sooner than later to avoid engine damage. To check for leaks, the cooling system needs to be pressurized and inspected. If the coolant pump is found to be leaking then it will need...
Question
Smell gas
This vehicle may be leaking from the fuel pressure regulator; GM has issued a recall for the regulators not having a proper seal. The leaking you describe may, or may not be related to the recall. If the leak is...
Question
Rear main seal leaking
Hi there. The only way to fix a rear main seal is to remove the transmission, pull out the old seal with a seal puller, and install a new one. It is an extensive procedure and needs to be performed...
Question
Rear main seal leak.
The rear main seal is located in between engine and the transmission. Usually when seals start going out it's because of a pressure issue with the crank case. If the PCV or positive crankcase ventilation system gets clogged up, or...
Question
Rear differential noise
The noise is not coming from the pinion seal, but the pinion bearings are bad and this is why the pinion seal is leaking. You will need to have the rear end bearings and seals replaced. If you'd like to...
Question
My car Is leaking transmission fluid.
If the output shaft seal (where the seal engages the inboard CV segment) is leaking even though the seal is new the possible causes of the leak are: wrong seal; seal is cocked in the bore, not properly positioned or...
Question
leaking brake fluid
The first thing to check is to see if you are getting low on brake fluid? The only two possible leaks that it can be where fluid comes out of the brake drum will be brake fluid or rear axle...
Question
Engine oil leak
Hello! There are several seals that are likely leaking on a vehicle of that particular age, such as the valve cover gasket, tube seals, distributor seal, crank seal, or camshaft seal. The leaking of one seal will commonly drain down...
Question
1998 Toyota Corolla won't accelerate
A low fluid level will cause the transmission to not go into a drive gear fully. The differential seals from the transaxle can leak, and cause fluid level to drop. If these seals are leaking, they will need to be...
Question
I need to drop the rear of my 1979 351 W crankshaft to replace a rear main seal, but how much can I drop it?
Once you remove the rear bearing cap and loosen the other caps by one to two turns on the bolts should be just enough to lower the crank to get out the rear seal.
Question
What's the cost on a repair for a value seal replacement
Hello, thank you for writing in. The cost of replacing your valve seals is going to vary by the technicians available in your area, and the availability of parts. Unfortunately, accessing the valves can be very difficult and its can...
Question
Can I temporarily fix a burnt exhaust valve seal on my 2002 Subaru Legacy
Hi there. If you have a failure in one or more valve seals then that can cause the engine to burn a lot of oil. If this is the case then the valve stems need to be replaced and possibly...
Question
I have a blown main shaft seal on my 95 Honda accord lx
The crankshaft on your car engine has an oil seal in the front and rear of the block. If the seal at the front of the block, that is behind the crank pulley, is leaking that seal is relatively easy...
Question
05 XL-7 CAN FRONT CRANK SEAL BE REPLACED WITHOUT REMOVING TIMING COVER?
The seal has to be accessible (that is visible and there is enough room to pry it out) on removal and, as well, there has to be enough space to press it back in using an appropriate seal installation tool....
Question
Seeping rear right axle seal
Hello, thank you for writing in. Apologies for the difficulty in obtaining a quote. Smart Cars are a little harder to price out, and our website may not have been automatically able to do so. The average price range for...
Question
Replaced rear seal and now I Only have first gear and my speedamater don't work.
If you replaced the tail shaft seal behind the yoke and had to remove the driveshaft, then it is possible that the transmission vehicle speed sensor VSS is not installed correctly or the harness has been damaged. This will make...
Question
I have a very slow leak coming from the transfer case.
The most common leak from the transfer case is the rear output shaft seal. Of course, the condition of the bushing and/or bearing at that location will have to be verified because excessive play will make it impossible for the...
Question
Can I replace valve stem seals without removing the head?
Replacing valve stem seals without removing the heads will typically require a couple of specialty tools to accomplish. On a given cylinder, you will want to be sure that both of the valves are closed. Then you remove the spark...
Question
I am seeing smokes from my muffler in 57 degrees weather?
The repairs that were performed would not be implicated as a cause in any engine smoking that is visible in the exhaust. Some smoke at start up can be normal, particularly white smoke from condensation. However, continuous smoking after the...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question