Isuzu Trooper Brake Master Cylinder Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

customer ratings

(55)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

customer ratings

(55)

Brake Master Cylinder Replacement Estimate for Isuzu Trooper

Isuzu Trooper Brake Master Cylinder Replacement costs $423 on average.

CarServiceEstimateShop/Dealer Price
1991 Isuzu TrooperV6-2.8LService typeBrake Master Cylinder ReplacementEstimate$381.87Shop/Dealer Price$468.84 - $698.25
1988 Isuzu TrooperL4-2.6LService typeBrake Master Cylinder ReplacementEstimate$371.87Shop/Dealer Price$457.26 - $685.48
1989 Isuzu TrooperL4-2.6LService typeBrake Master Cylinder ReplacementEstimate$371.87Shop/Dealer Price$457.26 - $685.48
1996 Isuzu TrooperV6-3.2LService typeBrake Master Cylinder ReplacementEstimate$1045.37Shop/Dealer Price$1296.06 - $2009.11
1984 Isuzu TrooperL4-2.2L DieselService typeBrake Master Cylinder ReplacementEstimate$724.27Shop/Dealer Price$897.77 - $1390.31
1991 Isuzu TrooperL4-2.6LService typeBrake Master Cylinder ReplacementEstimate$371.87Shop/Dealer Price$457.26 - $685.48
1985 Isuzu TrooperL4-1.9LService typeBrake Master Cylinder ReplacementEstimate$729.27Shop/Dealer Price$902.62 - $1395.04
1990 Isuzu TrooperV6-2.8LService typeBrake Master Cylinder ReplacementEstimate$376.87Shop/Dealer Price$462.49 - $690.90
Show example Isuzu Trooper Brake Master Cylinder Replacement prices

Brake Master Cylinder Replacement Service

What is the brake master cylinder and how does it work?

The brake master cylinder has a piston that pressurizes fluid in the brake lines to each wheel cylinder as you apply force to the brake pedal. That pressure moves the pistons that are in the wheel cylinders. As the pistons in those wheel cylinders move, they force the brake pads or shoes tightly against the rotors or drums allowing the car to stop quickly.

The size of the pistons in the master cylinder and in the wheel cylinders are carefully selected when designing a car. This allows drivers to apply moderate pressure on the brake pedal when stopping, but creates tremendous pressure applied at the wheel cylinders. A car can then stop quickly even at high speeds. Depending on how much force is applied to the brake pedal, the pressure in a car’s brake lines will typically be in the range of 800 PSI to 2,000 PSI.

Master Cylinder

When to replace the master cylinder?

  • External fluid leaks. There should be no fluid visible on the external surfaces of any portion of the master cylinder or the plastic fluid reservoir.
  • Low, slowly falling, or spongy brake pedal. Faulty internal seals on the piston can cause internal leaks and also seepage of brake fluid into the power assist brake booster. Internal leaks will typically be accompanied by a low pedal, a spongy brake pedal, or a pedal that slowly sinks as you maintain pressure. In all cases, you will experience reduced braking abilities.
  • Discolored brake fluid. No brake fluids, other than those specified for the year, make, and model, are fully compatible with a car’s internal rubber seals in the master cylinder. Discoloration of brake fluid can also occur due to moisture and particulate contaminants in the fluid.
  • Warning lights on the dash. If the brake system warning light illuminates, there are several potential causes but failure of the master cylinder is in the list of causes that would have to be investigated.

How do mechanics replace the brake master cylinder?

  • On vehicles with power brakes, the master cylinder is bolted to the metal housing of the power brake booster. There is usually an electrical plug connecting to a brake fluid level sensor on the master cylinder reservoir and that plug must be disconnected.
  • Once all steel brake lines are disconnected from the master cylinder, the master cylinder is unbolted from the brake booster and removed from the vehicle.
  • The new master cylinder must be bench-bled to expel air from internal passages that contain the piston. Then the new master cylinder is bolted to the brake booster and the brake lines are reattached. The electrical plug for the fluid level sensor is reconnected.
  • Whenever a new master cylinder is installed, brakes lines to wheel positions must be bled to remove air, old fluid and contaminants. If your vehicle is equipped with anti-lock brakes, the mechanic may use a bidirectional scan tool during brake bleeding to actuate the ABS pump, thus ensuring that all air is removed from the complex valving in the ABS system.
  • All brake line connections that were removed during the master cylinder replacement are inspected for any leakage and the vehicle is road tested to ensure normal operation of the brakes.

Is it safe to drive with a master cylinder problem?

No, any fault in the master cylinder, which is part of the braking system creates a safety risk. A fully operational brake system is essential to quickly stopping your car. Driving a vehicle isn’t safe, if the master cylinder is leaking or has other faults, as braking distances might be longer than normal. The braking system on a vehicle is among the most important safety systems and must be fully functional to safely drive your vehicle.

When replacing the master cylinder keep in mind:

  • The master cylinder is only one component of many in a vehicle’s braking system. During replacement of the master cylinder, all vehicle braking system components should be inspected to ensure maximum braking power is available.
  • The amount of friction material remaining on the brake pads and brake shoes should be verified.
  • Brake lines and flexible rubber hoses at each wheel position should be inspected for corrosion and deterioration.
  • The power brake booster should be evaluated to ensure that power assist is working properly.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Isuzu mechanics

Real customer reviews from Isuzu owners like you.

Excellent Rating

(55)

Rating Summary
52
0
0
1
2
52
0
0
1
2

Robert

48 years of experience
51 reviews
Robert
48 years of experience
Isuzu Trooper V6-3.5L - Check Engine Light is on - Austin, Texas
Robert was a very good mechanic. He took the time to explain in detail what the problem was as well as looking for any other problems.

Francisco

10 years of experience
174 reviews
Francisco
10 years of experience
Isuzu Trooper L4-2.6L - Smoke from engine or exhaust - Portland, Oregon
Francisco was personable and seemed honest. He came up with an assessment of the issue in a few minutes and gave me a good idea of what I could expect

Walter

46 years of experience
265 reviews
Walter
46 years of experience
Isuzu Trooper V6-2.8L - Oil Change - Tulsa, Oklahoma
Very nice man! Did the job and then some.

Angelo

32 years of experience
76 reviews
Angelo
32 years of experience
Isuzu Trooper V6-3.5L - Check Engine Light is on - Plano, Texas
Angelo is very knowledgeable. Showed up on time. I am looking forward to working with him again

Excellent Rating

(55)

Rating Summary
52
0
0
1
2
52
0
0
1
2
Number of Isuzu Trooper services completed
605+
services done by our mechanics
TOTAL NUMBER OF EXPERT Isuzu MECHANICS
200+
experts on our platform

Recent articles & questions

What To Do if Your Car is Pulled Over by the Police
Getting pulled over by the traffic police while driving your car can be less stressful if you pull over quickly, stay calm, and answer all questions.
P0321 OBD-II Trouble Code: Ignition/Distributor Engine Speed Input Circuit Range/Performance
P0321 P0321 code definition Ignition/Distributor Engine Speed Input Circuit Range/Performance What the P0321 code means P0321 is an OBD-II generic code that the engine control module (ECM) detected the engine speed input sensor circuit out of range or its performance...
P0251 OBD-II Trouble Code: Injection Pump Fuel Metering Control "A" Malfunction (Cam/Rotor/Injector)
P0251 code definition Injection Pump Fuel Metering Control "A" Malfunction (Cam/Rotor/Injector) What the P0251 code means P0251 is a generic fault code...

Radiator hose busted

Hi there, the engine cooling system is a sealed system to prevent coolant from getting out into the environment. Coolant all over the top of the engine and steam when the engine is warm and stopped indicates a leak in...

My car started sputtering when i turned it on. Tried putting it in reverse and the same. Sputtering like it wants to turn off.

What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

Loses power while driving, but doesn't cut off; console goes dark.

Hi there, thank for writing in. I'd be happy to help. This could be caused by a couple of different component failures. A faulty throttle body actuator can cause this kind of loss of power. The brake and battery lights...

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