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Sometimes a Renault Clio may not start because of problems with its crankshaft position sensor. It will turn over but won't fire up.
The crankshaft position sensor is used by the cars ECU to determine where the crankshaft is at any given time, then it can decide when and what spark plug to use, and what injector needs to spray, if the sensor is faulty, it has no way of knowing what to do and therefore will not start.
Its quite an easy component to get to, its found just below the air filter housing, and is held in with 2 10mm bolts and an electrical connector, a quick clean usually gets it fixed.
About 2 years ago the clio was having problems with this constantly and was having no start problems quite often, i was regularly cleaning the sensor as it was getting covered in oil, it turned out that the oil was leaking through the air filter housing as the crankcase breather was blocked, when cleaning the throttle body i also cleaned the crankcase breather.
In this video i replicated the problems i had by simply unplugging the sensor, although it was a bit dirty, it was still working fine, when there was an oil leak the sensor used to get covered in muck.
This is the throttle body cleaning video here:
• Renault Clio 1.2 16v D...
Although i don't show cleaning out the crankshaft breather pipe or PCV valve in the video, when you have the inlet manifold off its easy to clean it out.
Anyhow its a simple fix that should help if you need to get your car started.
Equipment used to make video:
GoPro: amzn.to/2SBe9H4
Main Camera: amzn.to/2skwuxl
SD Card: amzn.to/39m2xNM
Computer: amzn.to/39lIXl2
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