What is the function of the Positive Crankcase Ventilation (PCV) system and PCV Valve on Jeep Comanche?

The PCV system consists of a PCV valve, a fresh air-filtered inlet, and vacuum hoses. The PCV valve restricts flow when the intake manifold vacuum is high, but allows excessive blow-by gases to flow back into the air cleaner under abnormal conditions. Fuel-injected vehicles use a Crankcase Ventilation System (CCV) that doesn't use a vacuum-controlled valve. Instead, it uses a molded vacuum tube connected to a grommet on the rocker arm cover, which contains a calibrated orifice that meters crankcase vapors. A new air supply hose from the air cleaner is attached to the rocker arm cover, allowing fresh air to mix with the crankcase vapors and be consumed during combustion.

Genuine Jeep Comanche PCV Valve

Position Crank Ventilation Valve

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2 PCV Valves found

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Jeep Comanche Valve-PCV
Part Number: 33001239
Product Specifications
- Other Name: Valve, PCV
- Replaces: J8132309
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1986-1990 Jeep Comanche | 4 Cyl 2.5L
View related parts
Jeep Comanche Valve-PCV
Part Number: J8132309
Product Specifications
- Other Name: Valve, PCV
- Replaced by: 33001239
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1986-1987 Jeep Comanche | 4 Cyl 2.5L

Jeep Comanche PCV Valve

The PCV Valve is necessarily installed in Jeep Comanche Automobiles that aids in the reduction of emission and boosting up the performance of the vehicle's engine. The PCV Valve directs the crankcase generated combustion byproduct gases back into the combustion chambers, thus protecting the environment and can also thwarts the formation of detrimental oil sludge on the engine's internal parts. As a result of the relation to the intake manifold vacuum situations, PCV Valve is capable of reducing gas flow when the engine is idle and at the same time increasing the flow of blow-by gases when the engine is under load. Furthermore, the PCV Valve has a role of flame arrestor and also helps in the enhancement of the engine power due to increase in the compression. The PCV Valve must always be inspected and maintained on a regular basis to avoid getting a large bill to sort out the Vehicle problems.

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Jeep Comanche PCV Valve Parts Questions & Experts Answers

Valve-PCV
33001239
Q: What is the function of the Positive Crankcase Ventilation (PCV) system and PCV Valve on Jeep Comanche?
A: The PCV system consists of a PCV valve, a fresh air-filtered inlet, and vacuum hoses. The PCV valve restricts flow when the intake manifold vacuum is high, but allows excessive blow-by gases to flow back into the air cleaner under abnormal conditions. Fuel-injected vehicles use a Crankcase Ventilation System (CCV) that doesn't use a vacuum-controlled valve. Instead, it uses a molded vacuum tube connected to a grommet on the rocker arm cover, which contains a calibrated orifice that meters crankcase vapors. A new air supply hose from the air cleaner is attached to the rocker arm cover, allowing fresh air to mix with the crankcase vapors and be consumed during combustion.