The sensors are supposed to click, thats how they work, they emit a sound and pick it back up, much like a bat.
Sometimes the loom will get damaged and have a broken wire, if there original fit then ids fords diag tool will give the user which sensor or circuit is not working.
Yes buying a sensor and taking pot luck might find the fix, then it may not.
Saab = gm = not ford lol
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD
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