Riviera V6-231 3.8L Turbo VIN 3 4-bbl (1982)
Distributor Thermal Vacuum Switch: Description and Operation
Distributor Thermal Control Valve (DTCV)
This valve is used in the manifold vacuum line to the distributor vacuum advance to improve driveability during cold engine operation.
NOTE: Refer to the number stamped on the base of the switch or valve for calibrated switching or activation temperatures.
