Jeep Upper cylinder clean

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Jeep Upper cylinder clean

Why Does My Jeep Need an Upper Cylinder Clean?

There are a few ways an upper cylinder clean can be carried out on a Jeep

  • Spray the cleaner into the throttle body where it gets sucked into the intake manifold
  • Pump the cleaning agent into a vacuum hose or pipe that enters into the Jeep’s intake manifold 
  • Remove the spark plugs and spray the cleaner into the spark plug holes

All methods can be done separately or performed together within the same upper cylinder cleaning task. There are various cylinder cleaners available and your mechanic will determine the best cleaner and method for your Jeep.

Carbon build-up on Jeep cylinders can cause pre-ignition, due to the heat of the carbon deposits, it leads to an engine misfire. When Jeep engines are firing at the wrong time it’s not healthy and can cause the following problems.

The Jeep will eventually respond poorly, idle roughly, noticeable engine knocking and loss of power on acceleration. Fuel consumption could increase and the Jeep’s engine light may come on. Some of these signs can be subtle and easily go unnoticed, that’s why it’s a good idea to add an upper cylinder clean to your Jeep’s service on a regular basis.

An upper cylinder clean will generally cost in the tens of dollars up to the hundreds, it depends on how dirty it is, the time taken to clean and the type of Jeep. An upper cylinder clean is a quicker and cheaper alternative to pulling an engine apart to be cleaned. In some cases, a can of spray might not fix the problem and the Jeep’s engine might need to be pulled apart, which can cost into the thousands.