Proportioning/Combination Valve Replacement at your home or office.

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How much does Proportioning / Combination Valve Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

YourMechanic Price
$107 to $424
Labor: $70 - $168
Parts: $37 - $256
Average dealer price
$168 to $706
Average shop price
$130 to $494
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Proportioning / Combination Valve Replacement for 2007 Chevrolet Malibu V6-3.9LYourMechanic Price$165.70Shop/Dealer Price$203.25 - $273.43
Proportioning / Combination Valve Replacement for 1999 Plymouth Voyager V6-3.3LYourMechanic Price$183.00Shop/Dealer Price$224.39 - $299.31
Proportioning / Combination Valve Replacement for 1986 Porsche 928 V8-5.0LYourMechanic Price$180.22Shop/Dealer Price$244.13 - $354.06
Proportioning / Combination Valve Replacement for 1990 Chevrolet C3500 V8-7.4LYourMechanic Price$232.09Shop/Dealer Price$287.18 - $419.67
Proportioning / Combination Valve Replacement for 1997 Porsche Boxster H6-2.5LYourMechanic Price$187.21Shop/Dealer Price$252.84 - $368.00
Proportioning / Combination Valve Replacement for 1991 Cadillac Fleetwood V8-4.9LYourMechanic Price$152.05Shop/Dealer Price$197.96 - $278.55
Proportioning / Combination Valve Replacement for 1996 Ford E-350 Econoline V8-7.3L Turbo DieselYourMechanic Price$201.62Shop/Dealer Price$247.69 - $336.58
Proportioning / Combination Valve Replacement for 2000 Plymouth Grand Voyager V6-3.3LYourMechanic Price$183.00Shop/Dealer Price$224.38 - $299.30
Show example Proportioning / Combination Valve Replacement prices

Proportioning / Combination Valve Replacement Service & Cost

What is the Proportioning / Combination Valve all about?

Your braking system relies on hydraulic pressure to operate. When you depress the brake pedal, brake fluid is pushed through the system to the wheels. Fluid pressure is responsible for actuating both disc brake calipers, as well as drum brakes. However, there are numerous components in line between the brake pedal and the brakes themselves, including the combination valve.

The combination valve is responsible for metering fluid to disc brakes, as well as fulfilling tasks done by both the pressure differential switch and proportioning valve (which is responsible for reducing the fluid pressure in the lines leading to the rear drum brakes). This is necessary because of how brakes work in terms of lockup – the more weight there is on a wheel, the more force can be applied without locking up the brakes. In rear drum brakes, the weight on the wheel is comparatively small (the weight of the engine on the front wheels is considerable).

Keep in mind:

  • In modern cars that employ combination valves, replacing the entire valve body is necessary if the proportioning valve fails.
  • There is no way to check operation on this type of valve unless it has failed completely.
  • The valve may have failed due to many reasons, including debris in the brake fluid.

How it's done:

  • The defective proportioning combination valve brake lines are disconnected
  • The defective proportioning combination valve is removed from the vehicle
  • The new proportioning combination valve is installed and the brake lines are connected to valve
  • The brake system is bled and purged of air in the system and the brake fluid is refilled
  • The vehicle is road tested for proper brake operation

Our recommendation:

Follow your automaker’s recommendations on brake system service to ensure that the fluid remains in good condition and free of debris. Have your braking system maintained by our expert mechanics to ensure that any potential problems are caught as soon as possible. Driving with a failing proportioning valve puts you at increased risk.

What common symptoms indicate you may need to replace the Proportioning / Combination Valve?

  • Rear brakes lock up easily, particularly on wet pavement

How important is this service?

While it is still possible to drive with a failed or failing proportioning valve, it’s not recommended because it decreases your safety while increasing the risk of being involved in an accident because your rear brakes lock up under even light loads. Have the entire combination valve assembly replaced immediately.

Fast and easy Proportioning / Combination Valve Replacement service at your home or office.

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Meet some of our expert mechanics

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311 reviews
Lucas
12 years of experience
My experience with Lucas was excellent! He is extremely knowledgeable, and explained things very thoroughly in a way I could easily understand. He took the time to listen to what I was talking about, and then took even more time to look very carefully and find the problem I was describing. All in all, it was a very satisfactory experience. I will ask for Lucas specifically on any other repairs I might schedule with you.
2001 TOYOTA SIENNA - PRE-PURCHASE CAR INSPECTION
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61 reviews
Cary
22 years of experience
Excellent experience!! Cary arrived early and once he got there just took care of everything. All I did was toss him my keys and signed my name. Very pleasant working with him. Would recommend him, for sure!!
2003 INFINITI G35 - OIL CHANGE
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19 reviews
Alvin
10 years of experience
Very professional, texted me the day before because there was a chance of rain. There was a mix-up about parts, so he went back and got the correct part, and was finished before the estimated time.
1999 VOLKSWAGEN JETTA - STRUT ASSEMBLY REPLACEMENT (FRONT)
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3 reviews
Edward
18 years of experience
Friendly and punctual. Car was more responsive on the test drive afterwards
1974 FORD RANCHERO - ADJUST IGNITION TIMING
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Proportioning / Combination Valve Replacement for 2007 Chevrolet Malibu V6-3.9LYourMechanic Price$165.70Shop/Dealer Price$203.25 - $273.43
Proportioning / Combination Valve Replacement for 1999 Plymouth Voyager V6-3.3LYourMechanic Price$183.00Shop/Dealer Price$224.39 - $299.31
Proportioning / Combination Valve Replacement for 1986 Porsche 928 V8-5.0LYourMechanic Price$180.22Shop/Dealer Price$244.13 - $354.06
Proportioning / Combination Valve Replacement for 1990 Chevrolet C3500 V8-7.4LYourMechanic Price$232.09Shop/Dealer Price$287.18 - $419.67
Proportioning / Combination Valve Replacement for 1997 Porsche Boxster H6-2.5LYourMechanic Price$187.21Shop/Dealer Price$252.84 - $368.00
Proportioning / Combination Valve Replacement for 1991 Cadillac Fleetwood V8-4.9LYourMechanic Price$152.05Shop/Dealer Price$197.96 - $278.55
Proportioning / Combination Valve Replacement for 1996 Ford E-350 Econoline V8-7.3L Turbo DieselYourMechanic Price$201.62Shop/Dealer Price$247.69 - $336.58
Proportioning / Combination Valve Replacement for 2000 Plymouth Grand Voyager V6-3.3LYourMechanic Price$183.00Shop/Dealer Price$224.38 - $299.30
Show example Proportioning / Combination Valve Replacement prices

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