Pontiac Bonneville Brake fluid is leaking Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(71)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(71)

Brake fluid is leaking Inspection Service

How much does a Brake fluid is leaking Inspection cost?

On average, the cost for a Pontiac Bonneville Brake fluid is leaking Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1986 Pontiac BonnevilleV6-3.8LService typeBrake fluid is leaking InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
1989 Pontiac BonnevilleV6-3.8LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1982 Pontiac BonnevilleV6-4.1LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1970 Pontiac BonnevilleV8-6.6LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
1998 Pontiac BonnevilleV6-3.8LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
1963 Pontiac BonnevilleV8-6.4LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2005 Pontiac BonnevilleV6-3.8LService typeBrake fluid is leaking InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
1984 Pontiac BonnevilleV8-5.7L DieselService typeBrake fluid is leaking InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Pontiac Bonneville Brake fluid is leaking Inspection prices

Your brakes are the most important safety system on your vehicle. It’s all too easy to take them for granted, but if they were to fail even once, the results could be catastrophic. Most automotive brake systems are hydraulic, which means that pressurized fluid is sent through the lines from the master cylinder to the calipers and drums in order to activate the pads/shoes and slow down the car. If your brake fluid is leaking, it’s a sign that there’s something seriously wrong.

How this system works:

Your brake system is both simple and complex. There are a number of parts required to make it work properly, but the underlying concept is not that difficult to understand. Your master cylinder is the heart of the system – it is responsible for both boosting brake performance (via the brake booster onto which the master cylinder mounts), and for holding and sending brake fluid through the system.

In a nutshell, your brake system works like this: You press the brake pedal, which activates the master cylinder. It pushes fluid into the lines and down to the calipers. The fluid pressure forces the calipers to close, squeezing the rotor between the brake pads. This creates drag and friction, slowing down the car.

However, if fluid is leaking from somewhere in the system, it could mean that you’ll have insufficient fluid for proper brake operation.

Common reasons for this to happen:

  • Worn Brake Pads: If you suspect fluid is leaking because the level in the reservoir is low, it might be nothing more than worn pads. As the pads wear, more fluid is held in the system (because the caliper piston remains farther out due to the reduced pad material).

  • Damaged Master Cylinder Reservoir: Over time, the plastic reservoir attached to your master cylinder becomes brittle due to heat exposure. It can eventually crack, allowing brake fluid to seep out and down the back of the engine.

  • Damaged Bleeder Valve: Each caliper has a bleeder. These valves allow mechanics to bleed air out of the lines, but they can become damaged (or can be knocked loose or even left loose after inexpert service).

  • Damaged Brake Line: Your car has both rubber and steel brake lines that carry fluid to and from the master cylinder. Both types are prone to wear and can be punctured. If this occurs, fluid will steadily leak out of the line.

  • Failed Wheel Cylinder: On drum brakes, one of the most likely culprits is the wheel seal. These will fail over time and through normal wear and tear, eventually weeping brake fluid.

  • Failed Piston Seal: The piston in your caliper is activated by fluid, and it’s a moving part, which means a seal is necessary to keep the fluid inside while allowing the piston to move. If the seal is damaged (cracked or punctured), it will leak brake fluid.

What to expect:

A professional mobile mechanic will come to your home or office to inspect your brake system, including the master cylinder, brake lines, drums, calipers and other components. The mechanic will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will inspect all aspects of your vehicle’s brake system, including possibly checking trouble codes in the computer if the ABS light is on (set off by the brake fluid level sensor). The mechanic will trace the leak to its origin, and then advise you on the next step required to repair the problem.

How important is this service?

Without an operational brake system, your car cannot be legally or safely driven. Leaking fluid is cause for concern – if the fluid level drops below a certain level, the brakes will not work. It’s essential to have your brake system inspected during normal maintenance, and to pay close attention to the fluid level in the reservoir. Any leaks should be immediately inspected and repaired. One of our professional mechanics can inspect, diagnose and repair your brake fluid leak.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Pontiac mechanics

Real customer reviews from Pontiac owners like you.

Excellent Rating

(71)

Rating Summary
65
5
1
0
0
65
5
1
0
0

Mitchel

24 years of experience
239 reviews
Mitchel
24 years of experience
Pontiac Bonneville V6-3.8L - Brake fluid is leaking - Miami, Florida
He was very nice and helpful. EXCEPT, he was to give us a recommendation of where to bring our car for brake service and have not heard back from him and we DON'T know where we should get work done??

Michael

27 years of experience
483 reviews
Michael
27 years of experience
Pontiac Bonneville V6-3.8L - Ignition module - Santa Monica, California

Jerome

34 years of experience
206 reviews
Jerome
34 years of experience
Pontiac Bonneville V6-3.8L - Car is not starting - Hyattsville, Maryland
Knowledgeable , and good customer service

Paul

25 years of experience
261 reviews
Paul
25 years of experience
Pontiac Bonneville V6-3.8L - Car is not starting - North Las Vegas, Nevada
Diagnosed and fixed the problem. Couldn't ask for more.

Excellent Rating

(71)

Rating Summary
65
5
1
0
0
65
5
1
0
0
Number of Pontiac Bonneville services completed
781+
services done by our mechanics
TOTAL NUMBER OF EXPERT Pontiac MECHANICS
800+
experts on our platform

Recent articles & questions

P0032 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 1 Sensor 1)
P0032 trouble code definition P0032 is the code for HO2S Heater Control Circuit High (Bank 1 Sensor 1) What the P0032 code...
How to Replace a Wheel Hub Assembly
A wheel hub assembly keeps car wheels in place. Wheel bearings and wheel hubs fail when the steering is loose and screeching comes from the wheels.

Car not shifting into gear

Whether your vehicle's transmission is automatic or manual will change the diagnosis a bit. Both types of transmissions use a linkage system to connect the shifter to the transmission under the hood. Any binding or broken mechanical connection will cause...

Check Engine Light is on - P0302 and P0304. Ignition coil recently replaced.

The two Diagnostic Trouble Codes, P0304 (https://www.yourmechanic.com/article/p0303-obd-ii-trouble-code-cylinder-3-misfire-detected-by-spencer-clayton) and P0302 (https://www.yourmechanic.com/article/p0302-obd-ii-trouble-code-cylinder-2-misfire-detected-by-jamahl-walker), refer to cylinder misfiring. A faulty ignition coil, spark plug, wire, and so forth can cause a cylinder to misfire but there are other possible causes, too. Consequently, the only...

If I use the radiator flush cleaner,,will that unclog the radiator

Hello, flushing the coolant system involve removing the thermostat of the engine to do a complete job. The contaminants in the system can block the thermostat’s passage way. When you have this type of break down with coolant it...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com