Skip the auto shop - Our mechanics make house calls

Q: Bleeding Brakes

asked by on

While bleeding the brakes with a vacuum pump, it appeared that air was seeping through the sides of the bleeder valves. Would you recommend that the bleeder valves be wrapped with teflon tape (or something like it) before bleeding?

My car has 286000 miles.
My car has an automatic transmission.

A: It is nearly impossible to bleed brakes wit...

It is nearly impossible to bleed brakes with a vacuum pump and not see bubbles. The bubbles are not actually coming from inside the brake line. Therefore, this air is something that can be dismissed. The pedal should still become firm eventually after bleeding brakes with a vacuum pump. If the air were coming from the brake line itself, very little fluid would be seen coming through the vacuum pump hose. If you see plenty of fluid coming out, the brakes are being bled properly. If you feel more comfortable with it, adding some tape will not hurt anything during this process. If you would rather have a mechanic take care of this, a certified professional from YourMechanic can come to your location to bleed the brakes for you.

Was this answer helpful?
Recommended services
Get a Quote

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Screeching noise from front wheel area when i turn the wheel

This loud screeching is going to be from the tie rod end or the lower ball joints. You can put your hand on the joints you suspect and have the steering move back and forth to see what one of...

Q: Vacuum hose unhooked brake - 1990 Dodge D150

Hello. The vacuum hose from the brake booster goes into a tube on the intake. This tube is going to be about the same diameter as the hose and may need a clamp to secure it properly. The small vacuum...

Q: battery replacement

This sounds like what they are saying is that the problem may not be the battery but rather the alternator. When the alternator is charging the battery at a rate that is higher than normal it can damage the battery....

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.