Idle Speed Control Valve (ISCV) - removal, cleaning and refitting
Removal
1 Disconnect the battery negative lead.
2 Disconnect the valve wiring plug (see illustration).
12.2 Idle speed control valve - 1.6 EFI engine
A Wiring plug B Securing bolts
3 Unscrew the two securing bolts, and withdraw the valve from the air cleaner housing.
Cleaning
4 Remove the valve as described earlier in
this Section.
5 Immerse the valve in a container of clean petrol and allow it to soak for approximately three minutes.
6 Use a clean paint brush to clean the bore, slots and piston of the valve.
7 Using a small screwdriver, carefully move the piston up and down in the bore (do not use the slots to do this), then rinse the valve with petrol and dry it, preferably using compressed air (see illustration).
12.7 Using a screwdriver to move the idle speed control valve piston - 1.6
EFI engine
8 Refit the valve as described in the following paragraphs.
Refitting
9 Refitting is a reversal of removal, ensuring
that the mating faces of the valve and air
cleaner are clean.
10 On completion, start the engine and check that the idle speed is stable, and that there are no air leaks. Warm the engine up to normal operating temperature, then switch on all available electrical loads and check that the idle speed is maintained.
See also:
Condenser (contact breaker system) - testing, removal and
refitting
Note: Refer to the precautions given in
Section 1 before proceeding.
Testing
1 The purpose of the condenser is to prevent
excessive arcing of the contact breaker
points, and to ensure that a rapi ...
Windscreen, rear window and fixed rear quarter windows - removal and
refitting
Removal
1 With the exception of the cab rear window
on P100 models, all fixed glass panels are
direct glazed to the body using a special
adhesive. Special tools are required to
remove the old gla ...
Boot lid (Cabriolet models) - removal and refitting
Removal
1 Open the boot and prop it open using a
length of wood.
2 Pull out the clips securing the gas strut and
remove the strut.
3 Working inside the boot, undo the nuts
securing the hinge ass ...