Stubborn Plastic Hoses
I have recently cleaned my throttle body but unless you have done a vast mileage or not used fuel injector cleaner it is a waste of time as there is very little build up of carbon or muck. The clamp on the wheel house air inlet hose on my S was only mild steel and of a bolt up design. Unlike all the other tube clamps which are stainless steel. Mine was rusted and letting air leak. I broke it off and put a worm drive clamp on. No air leak and I now have a smooth and even idle once more.
The trick with the stubborn plastic hoses is to gently warm them with a hairdrier, they then pop on and off with ease. Some others have suggested lubricating them but this can lead to them popping off at a later date. Hope this helps.
Gerry
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