Contents Section: Engine Electrics All sections

How to Check the Vacuum Control Valve Opel Frontera A

Vacuum Control Valve, Check

Vacuum control valve (arrowed) is located in left hand side of engine compartment.

.D. ICON01.tif0,750,75tiff;; Remove, Disconnect
Vacuum hoses from vacuum control valve.
.P. U7866.tif97,5tiff;;
.D. ICON07.tif0,750,75tiff;; Measure

Operating pressure of valve - apply vacuum of 67 kPa / 667 mbar to port 'D', then apply vacuum to port 'A' and check corresponding vacuum is present at port 'C'. Port 'B' is open to atmosphere.

.P. U7867.tif97,5tiff;;

Port 'A' vacuum

kPaPort 'C' vacuum
kPa
210 to 13.3
1053.4 to 67
.D. ICON02.tif0,750,75tiff;; Install, Connect

Vacuum hoses to vacuum control valve.