Diesel Data: Automotive Repair

Temperature Control Valve

Fig. 26 - EGR Control Temperature Control Valve:






The plenum mounted temperature control valve is utilized on the ported vacuum control system. The valve reduces the recycle rate at low ambient temperature for improved driveability. The unit contains a temperature sensitive bimetal disc which senses plenum air temperature. The snap action of the disc unplugs a calibrated orifice to provide the bleed air. Calibration is protected by an air filter unit.