OEM Cruise Control Servo Assembly for 1996-2005 Buick, Chevrolet, Oldsmobile, & Pontiac

What to Look for When Buying This Part:

• Compatibility with your vehicle's year, make, and model.
• Physical condition (if buying a used part). Check for cracks, damage, or corrosion.
• Functionality (if possible, ask if the part has been tested).
• Warranty or return policy.

Quality Indicators:

What's Typically Included:

• The cruise control valve itself
• Sometimes includes mounting hardware (check with the seller)
• May or may not include vacuum lines or electrical connectors (check with the seller)

Difficulty Level:

• Moderate

Estimated Time:

• 1-2 hours

Special Tools Needed:

• Basic hand tools (screwdrivers, wrenches, pliers)
• Vacuum line pliers (optional, but helpful)
• OBD-II scanner (to clear any diagnostic trouble codes)

Critical Steps and Tips:

1. Disconnect the negative battery cable before starting any work on the electrical system.
2. Locate the cruise control valve. It is typically mounted in the engine compartment, often near the throttle body or intake manifold.
3. Disconnect the vacuum lines and electrical connector from the old valve.
4. Remove the old valve from its mounting bracket.
5. Install the new valve in the reverse order of removal.
6. Reconnect the vacuum lines and electrical connector.
7. Reconnect the negative battery cable.
8. Clear any diagnostic trouble codes using an OBD-II scanner.

DIY or Professional Installation:

• DIY is possible for mechanically inclined individuals. However, if you are not comfortable working on your vehicle's engine or electrical system, professional installation is recommended.

Compare: Used OEM, New Aftermarket

Used OEM:

• Offers the best value by providing genuine factory parts that have been tested and inspected. You get the quality of the original part at a significantly lower price.

New Aftermarket:

• Provides brand new parts built to meet or exceed OE specifications. This is a good option if you prefer a new part and want a longer warranty.

Parts Commonly Replaced or Checked:

• Vacuum lines
• Cruise control cable
• Throttle cable
• Brake light switch
• Cruise control module

Why Replacing Related Parts Prevents Repeat Failures:

• Replacing worn or damaged vacuum lines prevents vacuum leaks that can cause the cruise control system to malfunction. Checking the brake light switch ensures the cruise control disengages when the brakes are applied. Replacing related parts can address underlying issues and prevent future problems.

How Long This Part Normally Lasts:

• 7-10 years or 100,000-150,000 miles

Factors That Affect Longevity:

• Environmental conditions (heat, humidity)
• Driving habits
• Regular maintenance
• Quality of the replacement part

Budget vs Mid-Range vs Premium Options:

• Used OEM: $30 - $75
• New Aftermarket: $50 - $120

Labor Cost Considerations:

• Professional installation labor costs typically range from $75 to $150, depending on the shop's hourly rate and the complexity of the job.

Total Job Cost Estimates:

• DIY (Used OEM): $30 - $75 (part only)
• DIY (New Aftermarket): $50 - $120 (part only)
• Professional Installation (Used OEM): $105 - $225 (part + labor)
• Professional Installation (New Aftermarket): $125 - $270 (part + labor)

Known Issues:

• Vacuum leaks are a common problem in these older vehicles, which can affect the cruise control system.
• The cruise control cable can become stretched or damaged over time, leading to erratic cruise control operation.

TSBs or Common Complaints:

• Check online resources for any Technical Service Bulletins (TSBs) related to the cruise control system for your specific vehicle.

How to Confirm Proper Operation:

• Start the vehicle and engage the cruise control system.
• Verify that the cruise control light illuminates on the dashboard.
• Accelerate to your desired speed and set the cruise control.
• Ensure that the vehicle maintains a consistent speed without fluctuations.
• Test the cruise control disengagement function by tapping the brake pedal.

What to Look/Listen For:

• Smooth and consistent speed maintenance.
• No unusual noises or vibrations from the cruise control system.
• Proper disengagement of the cruise control when the brake pedal is applied.

Q: What does a cruise control valve do?
A: The cruise control valve controls the flow of vacuum to the cruise control actuator, which in turn controls the throttle to maintain a set speed.

Q: How do I know if my cruise control valve is bad?
A: Common symptoms include the cruise control not engaging, disengaging unexpectedly, or the vehicle speed fluctuating while cruise control is active.

Q: Can I drive my car if the cruise control valve is bad?
A: Yes, you can still drive your car, but the cruise control system will not function properly.

Q: Is it difficult to replace a cruise control valve?
A: Replacing a cruise control valve is a moderately difficult task that can be done by a mechanically inclined individual with basic hand tools.

Q: Where is the cruise control valve located?
A: The cruise control valve is typically located in the engine compartment, often near the throttle body or intake manifold.

OEM Part Numbers:

• GM: 12567859, 12575408, 25315091, 25315092, 25344189

Fits Years: 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005