C4 Corvette Brake Pressure Modulator Valve Rebuilding Service

1986, 1987, 1988, 1989, 1990, 1991

This is a rebuilding service offered by Corvette Salvage for a C4 Brake Pressure Modulator Valve, which can be installed on any of the following Corvette models:

Year	Body & Trim
1991	Base, ZR-1
1990	Base, ZR-1
1989	Base
1988	35th Anniversary Edition, Base
1987	Base
1986	Base, Indianapolis 500 Pace Car

 

The C4 Brake Pressure Modulator Valve (BPMV) is a component in the braking system of 1986 to 1991 Corvettes responsible for controlling the hydraulic pressure to the wheels during braking. The BPMV is part of the Anti-Lock Brake System (ABS) and helps prevent the wheels from locking up during hard braking, which can cause a loss of control of the vehicle.

The C4 BPMV works by sensing each wheel’s wheel speed through sensors located at each wheel. When the system detects a wheel slowing down faster than the others, indicating a possible lock-up, it reduces the hydraulic pressure on that wheel to prevent it from locking up.

The BPMV is also responsible for controlling the pressure on the brake system when the ABS is activated, which can occur in emergency braking situations. The valve helps to rapidly pulse the brake pressure to prevent wheel lock-up and skidding.

Suppose the C4 Brake Pressure Modulator Valve fails or malfunctions. In that case, it can result in reduced or ineffective braking performance, increased stopping distances, or loss of control of the vehicle during hard braking. Replacing a faulty BPMV requires a qualified mechanic and may involve bleeding the brake system to ensure proper function.

Proper maintenance of the ABS, including regular inspections and brake fluid changes, can help prevent potential malfunctions and extend the life of the C4 Brake Pressure Modulator Valve.

 

This C4 Brake Pressure Modulator Valve Rebuilding Service will include the following:

• Rebuilt Electric 12 Volt Motor
• Cleaned and Reseated Valves
• New O-Rings Installed
• New Stainless Steel Valve Springs Installed
• Bench Testing of the Valves

 

The Corvette Salvage Crew has written a guide with the necessary steps to perform BEFORE installing the rebuilt Brake Pressure Modulator Valve. Failure to follow these steps will result in a voided warranty for your unit.

Download the C4 Corvette Brake System Cleaning Guide, Revision 2.1

 

GM Part Numbers: 12506759, 14105966, 14084081

 

C4 Brake Pressure Modulator Valve 1986-1991 Warranty Coverage Policy

(This Warranty Coverage Policy only applies to customers who purchased the additional six-month, 1 year, two-year, or five-year warranty option at the time of the rebuilding service purchase.)

This product warranty shall be the exclusive remedy for the following defects or failures:

• Electric Motor Failure
• Solenoid Failure

This product warranty does not cover the two relays attached to the Brake Pressure Modulator Valve.

NOTE: Failure to follow the C4 Corvette Brake System Cleaning Guide BEFORE product installation will result in a voided warranty. To view the cleaning guide, click here.

When submitting a warranty claim, the Brake Pressure Modulator Valve must contain a defect in workmanship or material. The warranty does not extend to normal wear and tear; damage due to environmental conditions including rain, snow, hail, salt, or natural disasters; deterioration due to accident or collision; or damage caused by other faulty parts.

The Brake Pressure Modulator Valve must not be damaged due to incorrect installation upon return. Damage caused by abuse, misuse, improper repairs or maintenance, improper installation, alteration, or modification will not be covered by the warranty.

If something goes wrong with your unit, please submit a Warranty Help Ticket by clicking here. Please note when submitting a claim, the customer is responsible for all shipping costs. (The estimated shipping cost to have a Brake Pressure Modulator Valve shipped ONE way within the continental United States is $25.00. This results in a minimum potential shipping cost of $50.00.)

 

General Warranty Limitations

The following provisions apply:

• The warranty is limited only to the original purchaser and is non-transferable.
• Under NO circumstances will our liability exceed the amount of the original sale.
• Each warranty does not cover any labor costs or incidental, indirect, special, or consequential damages such as, but not limited to, physical injuries or property damage, loss of time, loss of use of the vehicle, inconvenience, air freight charges, rental vehicle charges, towing charges or accommodations resulting from a defect in or failure of the part.
• The original sales invoice must accompany all warranty claims.
• The warranty does not cover lost or stolen packages. Because the customer is the shipper, they are the only ones who can file any lost claim with the shipping company. Therefore, the customer must coordinate and process the claim through the shipping company.

 

We do not authorize any person to vary this warranty’s terms, conditions, or exclusions. If any provision of this warranty should become invalid or unenforceable because of any laws, the remaining terms and requirements shall remain in full force and effect. To the extent allowed under local law, the remedies provided in this C4 Brake Pressure Modulator Valve 1986-1991 Warranty Coverage Policy are the customer’s sole and exclusive remedies.

 

The following has been pulled from our Terms & Conditions.

CORE CHARGE POLICY

Corvette Salvage requires a core charge deposit when specific used and rebuilt parts are purchased. When purchasing an item with a core charge attached to it, the following two conditions must be satisfied for the core charge deposit to be returned:

• 60 days from the purchase of the original item, the original core must be returned to the Corvette Salvage facility. Shipping costs for core returns are the customer’s responsibility. Cost Of Delivery or Postage Due packages will be refused
• The returned core must pass rebuilding inspection tests. Corvette Salvage reserves the right to determine if a part is rebuildable. If a part is deemed not rebuildable, return shipment will be at customer expense.

Core returns can be shipped to the following address:

Dino’s Corvette Salvage, LLC

3545 Hwy 43 North

Picayune, MS 39466

Weight	11.00 lbs
Dimensions	9.40 × 8.60 × 8.40 in
Generation	C4 (1984-1996)
Year	1986 ('86), 1987 ('87), 1988 ('88), 1989 ('89), 1990 ('90), 1991 ('91)
Body Type	Convertible (1YY67), Coupe (1YY07)
Product Condition	Rebuilt
Manufacturer	Bosch
Rebuilding Service Options	I want my original unit rebuilt., Ship me a rebuilt unit.
Warranty Coverage	No Warranty Coverage, 6 Months Coverage, 1 Year Coverage, 2 Year Coverage, 5 Year Coverage