The 16V
ISCV (Idle Speed Control Valve) is a rotary valve, the others we have looked at so far have all been plunger designs.
On the 19 16V the
ISCV is mounted on the side of the head below and in front of the distributor.
Here is another picture with the airbox hose removed.
On the Mark 1 Clio 16V and Clio Williams engines the valve is on the side of the throttle body, near the radiator.
Remove the wiring plug, there's a wire clip around it to hold it onto the ICV. Two small screwdrivers can lever it open enough to remove it or simply waggle the plug side to side. There's a 10mm nut holding the clamp to the rubber mount the ICV sits in. I tend to just loosen the nut off and slide the ICV out leaving the rubber surround in the bracket. The hose goes to the inlet manifold, you can either remove the hoses from the ICV and leave them in the engine bay or remove them with it.
Here the
ISCV is stripped of the hoses, nothing amazing really.
Get the carb cleaner and spray into the pipe connections, then use a toothbrush to remove the oily residue. Use cotton buds to clean the actual moving window inside.
Here's a picture of the valve closed, this is what you want to make clean.
Here it is open.
They can be quite badly gummed up and take a bit of effort to clean, but keep at it and the valve will work properly.
Using some light oil like WD-40 on the spindle is a good idea as well, wipe the excess away with paper towel.
Linear Mode
