Cruise Control Does Not Disengage When Brake Is Applied; Cruise Control Re-Engages When Brake Is Released; Carburetor Does Not Return To Normal Idle; Cruise Control Does Not Control At Selected Speed - Pontiac TRANS AM 1977 Service Manual

ACCESSORIES
9-5
CRUISE CONTROL DOES NOT DISENGAGE WHEN
BRAKE IS APPLIED
CAUSE CORRECTION
Improper brake release switch adjustment.
Defective brake release switch.
Faulty regulator.
Adjust brake release switch.
Replace brake release switch.
Replace regulator.
CRUISE CONTROL RE-ENGAGES WHEN BRAKE IS
RELEASED
CAUSE CORRECTION
Faulty engaging switch. Replace engaging switch.
Terminal No. 1 grounded. Replace or repair wire harness.
CARBURETOR DOES NOT RETURN TO NORMAL IDLE
CAUSE CORRECTION
Faulty Cruise Control linkage cable.
Replace cable.
Improper accelerator linkage adjustment. Adjust accelerator linkage.
Weak or disconnected throttle return spring. Connect or replace spring.
PULSATING ACCELERATOR PEDAL
CAUSE CORRECTION
Speedometer cable or drive cable kinked. Replace cables if necessary.
CRUISE CONTROL DOES NOT CONTROL AT
SELECTED SPEED
CAUSE CORRECTION
Faulty vacuum servo or vacuum hose.
Replace vacuum servo or vacuum hose.
Faulty regulator. Replace regulator.