Renault 21 Upper cylinder clean
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Renault 21 Upper cylinder clean
Does my Renault 21 need an upper cylinder clean?
A Renault 21 upper cylinder/engine clean removes carbon deposits and other contaminants from the air intake and combustion chamber, without having to pull the engine apart to do so. An upper cylinder clean can improve a Renault 21’s performance, so it runs at it’s best.
Carbon build-up, grime and contaminants are part of a Renault 21 engine. If left to keep building up it can eventually lead to drivability issues and the engine will run rough and become less reliable. Over time this can lead to engine damage, if the Renault 21 continues to misfire.
There are various ways to clean a Renault 21’s upper cylinders by spraying upper cylinder cleaning into the throttle body, attaching a line to a vacuum hose to the intake manifold and/or spraying into each cylinder via the spark plug holes.
A professional automotive mechanic can carry out a Renault 21 upper cylinder clean. They have the tools, knowledge and experience to know what cleaner is best for your Renault 21 and the best method to get the best results.
