What Are the Cruise Control Systems Components and Operation of Cruise Control Module,Cruise Control Servo and Cruise Control Switch for Buick Century and Regal?

Cruise control maintains a set vehicle speed in normal driving conditions. It mainly uses vacuum to run a throttle servo, overseen by the Cruise Control Module (CCM). Features include cruise, coast, resume/accelerate, and "tap up/down" speed adjustments. Activation typically starts above 25 mph (40 kph). Key components are mode switches, CCM, servo unit, Vehicle Speed Sensor (VSS), vacuum supply, release switches, and harnesses. The system retains vacuum at the set position, with the controller managing three vehicle/system states. Components include the vacuum servo, EMC Controller/Actuator, Electronic Module, and VSS, supplemented by a Vacuum Accumulator for consistent performance.

Genuine Buick Regal Cruise Control Servo

Cruise Control Servo Speed

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5 Cruise Control Servos found

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Buick Regal Servo Asm,Cruise Control
Part Number: 25074629
- Other Name: SERVO, Cruise Control; Cruise Servo, Servo
$189.65 MSRP: $321.26
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Fits the following Vehicles:
1984-1985 Buick Regal | 2 DOOR, 4 DOOR, REGAL | 6 Cyl 4.3L Diesel, 8 Cyl 5.7L Diesel
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Buick Regal Servo Asm,Cruise Control
Part Number: 12335036
- Other Name: SERVO
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Fits the following Vehicles:
1986-1987 Buick Regal | REGAL | 8 Cyl 5.0L
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Buick Regal Servo Pkg
Part Number: 25074627
- Other Name: SERVO, Cruise Control; Cruise Servo, Servo
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Fits the following Vehicles:
1986-1991 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR, REGAL | 6 Cyl 2.8L, 6 Cyl 3.1L, 6 Cyl 3.8L
1984 Buick Regal | 2 DOOR, 4 DOOR | 6 Cyl 3.8L
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Buick Regal Servo Pkg
Part Number: 25074625
- Other Name: SERVO, Cruise Control; Cruise Control, Cruise Servo, Cruise Unit, Servo
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Fits the following Vehicles:
1992-1993 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR | 6 Cyl 3.1L, 6 Cyl 3.8L
1986-1987 Buick Regal | REGAL | 6 Cyl 3.8L
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Buick Regal Servo Pkg
Part Number: 25074630
- Other Name: SERVO, Cruise Control; Servo
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Fits the following Vehicles:
1984-1987 Buick Regal | 2 DOOR, 4 DOOR, REGAL | 6 Cyl 3.8L
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Buick Regal Cruise Control Servo Parts Questions & Answers

Servo Pkg
25074625
Q: What Are the Cruise Control Systems Components and Operation of Cruise Control Module,Cruise Control Servo and Cruise Control Switch for Buick Century and Regal?
A: Cruise control maintains a set vehicle speed in normal driving conditions. It mainly uses vacuum to run a throttle servo, overseen by the Cruise Control Module (CCM). Features include cruise, coast, resume/accelerate, and "tap up/down" speed adjustments. Activation typically starts above 25 mph (40 kph). Key components are mode switches, CCM, servo unit, Vehicle Speed Sensor (VSS), vacuum supply, release switches, and harnesses. The system retains vacuum at the set position, with the controller managing three vehicle/system states. Components include the vacuum servo, EMC Controller/Actuator, Electronic Module, and VSS, supplemented by a Vacuum Accumulator for consistent performance.