What is the role of the Canister Purge Valve and Vapor Canister in the fuel evaporation control system on Jeep Wrangler?

This system is employed to capture and contain fuel that volatilises from the fuelling system in a manner that the volatile hydrocarbons do not leak into the environment. It is made of a canister containing charcoal, a canister purge valve, a rollover or pressure relief valve and other hoses and tubes. In case the fuel tank pressure rises to 3psi, as a result of evaporation, the pressure relief valve opens thus allowing the fuel vapour to be channeled to the evaporative canister where it is absorbed by charcoal. For use, as the engine warms up, these vapors are either led to the intake manifold or the air cleaner for burning. Purge valve of canister depends upon the intake manifold vacuum; some models use coolant temperature switches, or computer controlled solenoids to offer the purge. Vents the fuel filler cap in case of occurrence to excessive pressure or vacuum used by the relief valve. To service the foregoing components as well as the fuel filler cap gasket and inspect the hoses and lines with a view of identifying any signs of damage on them. Signs that indicate problems are foul smells of fuel coming from under the bonnet or from the back of the car. The purge valve is checked with a vacuum pump and the purge solenoid is checked with battery voltage. For replacement, remove the negative battery terminal, get to the correct position and unscrew the canister purge valve or the EVAP canister and for reassembly, assemble them in the reverse manner. On some models, the leak detection pump can be detached from the bracket; on automobiles fitted with Fuel Tank Pressure sensor, remove the battery, release fuel tank pressure, and remove Fuel Tank Pressure sensor; when replumbing, do not forget to check on or lubricate the O-ring on the sensor.

Genuine Jeep Wrangler Canister Purge Valve

Vapor Canister Purge Valve EVAP

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9 Canister Purge Valves found

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Jeep Wrangler Purge Control Valve
Part Number: 4627694AB
$50.10 MSRP: $71.70
You Save: $21.60 (31%)
ADD TO CART
Product Specifications
- Other Name: Valve-PURGE Control
- Replaces: 4627694AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2025 Jeep Wrangler | Rubicon 4WD, Sport 4WD, Unlimited Rubicon 4WD, Unlimited Sahara 4WD, Unlimited Sport 4WD | 6 Cyl 3.6 L GAS, 6 Cyl 3.6L, 8 Cyl 6.4 L GAS
View related parts
Jeep Wrangler Purge Control Valve
Part Number: 4627694AA
$50.10 MSRP: $71.70
You Save: $21.60 (31%)
ADD TO CART
Product Specifications
- Other Name: Valve Purge Control
- Replaced by: 4627694AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018 Jeep Wrangler | Rubicon 4WD, Sport 4WD, Unlimited Rubicon 4WD, Unlimited Sahara 4WD, Unlimited Sport 4WD | 6 Cyl 3.6L
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Jeep Wrangler SOLENOID-Duty Cycle PURGE
Part Number: 4669475AB
$84.38 MSRP: $125.00
You Save: $40.62 (33%)
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Product Specifications
- Other Name: SOLENOID Duty Cycle Purge
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1997-2004 Jeep Wrangler | Rubicon, Sahara, SE, Sport, Unlimited, X | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 4.0L
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Jeep Wrangler Valve-Linear PURGE
Part Number: 4891731AA
$83.48 MSRP: $124.00
You Save: $40.52 (33%)
ADD TO CART
Product Specifications
- Other Name: Valve Linear Purge; Purge Control Valve, Purge Solenoid, Purge Valve
- Replaced by: 4891731AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2007-2018 Jeep Wrangler | 70th Anniversary, Rubicon, Rubicon 4WD, Sahara, Sahara 4WD, Sport, Sport 4WD, Unlimited Rubicon, Unlimited Rubicon 4WD, Unlimited Sahara 2WD, Unlimited Sahara 4WD, Unlimited Sport 2WD, Unlimited Sport 4WD, Unlimited X 2WD, Unlimited X 4WD, Unlimited X RHD 4WD, X, X RHD | 6 Cyl 3.6L, 6 Cyl 3.8L
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Jeep Wrangler SOLENOID-Duty Cycle PURGE
Part Number: 68337662AC
$56.93 MSRP: $84.35
You Save: $27.42 (33%)
ADD TO CART
Product Specifications
- Other Name: Purge Control Valve, Purge Solenoid, Purge Valve
- Replaces: 68337662AB, 5281451AA, 5281451AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2025 Jeep Wrangler | Rubicon 4WD, Sport 4WD, Unlimited Rubicon 4WD, Unlimited Sahara 4WD, Unlimited Sport 4WD, Unlimited Sport RHD 4WD | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 4 Cyl 2.0L
View related parts
Jeep Wrangler Purge Control Valve
Part Number: 5281451AA
$56.93 MSRP: $84.35
You Save: $27.42 (33%)
ADD TO CART
Product Specifications
- Other Name: Valve-PURGE Control
- Replaced by: 68337662AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018 Jeep Wrangler | Rubicon 4WD, Sport 4WD, Unlimited Rubicon 4WD, Unlimited Sahara 4WD, Unlimited Sport 4WD | 4 Cyl 2.0L
View related parts
Jeep Wrangler Purge Control Valve
Part Number: 5281451AB
$56.93 MSRP: $84.35
You Save: $27.42 (33%)
ADD TO CART
Product Specifications
- Other Name: Valve-PURGE Control
- Replaced by: 68337662AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2019-2020 Jeep Wrangler | Rubicon 4WD, Sport 4WD, Unlimited Rubicon 4WD, Unlimited Sahara 4WD, Unlimited Sport 4WD | 4 Cyl 2.0L
View related parts
Jeep Wrangler SOLENOID-Proportional PURGE
Part Number: 4669940AB
$66.10 MSRP: $97.80
You Save: $31.70 (33%)
Product Specifications
- Other Name: SOLENOID Proportional Purge; Purge Solenoid, Purge Valve, Solenoid
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2006 Jeep Wrangler | Rubicon, SE, Sport, Unlimited, Unlimited Rubicon, X | 4 Cyl 2.4L, 6 Cyl 4.0L
View related parts
Jeep Wrangler SOLENOID-Duty Cycle PURGE
Part Number: 5227635
Product Specifications
- Other Name: SOLENOID, Vacuum
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1991-1993 Jeep Wrangler | Sport Utility 4WD | 4 Cyl 2.5L, 6 Cyl 4.0L

Jeep Wrangler Canister Purge Valve

Fuel vapor is stored by the Jeep Wrangler Canister Purge Valve so it can be burnt rather than vented, preventing the release of smog-inducing hydrocarbons. Located between the charcoal canister and the intake manifold, the Canister Purge Valve opens under engine vacuum to pull in fresh air through the canister and sweep trapped vapor into the combustion chambers. Early Jeep Wrangler models had a basic vacuum-controlled unit. Later Wrangler versions changed to an electronically commanded Canister Purge Valve that the engine computer cycles during self-tests. The electronic style adds wiring, a solenoid, and feedback from a tank pressure sensor so the module can spot leaks and illuminate the check engine lamp if target vacuum never appears. A loose fuel cap often mimics this fault. The modern Jeep Wrangler engines now use a precisely metered Canister Purge Valve to satisfy stricter standards, but the core mission remains the same. Jeep systems seal hoses and caps to enable the Canister Purge Valve to work quietly, which means lower emissions on every drive. Over the years, Jeep owners seldom notice its task.

Looking for affordable and high-quality auto parts? Then you have already arrived at the proper online shop. We offer all Jeep Wrangler Canister Purge Valve at great affordable prices. Moreover, all genuine Jeep Wrangler Canister Purge Valve come with a manufacturer's warranty. In the long run, you would realize you have saved a lot of trouble and money with OEM parts from here.

Jeep Wrangler Canister Purge Valve Parts Questions & Experts Answers

Valve-Linear PURGE
4891731AA
Q: What is the role of the Canister Purge Valve and Vapor Canister in the fuel evaporation control system on Jeep Wrangler?
A:
This system is employed to capture and contain fuel that volatilises from the fuelling system in a manner that the volatile hydrocarbons do not leak into the environment. It is made of a canister containing charcoal, a canister purge valve, a rollover or pressure relief valve and other hoses and tubes. In case the fuel tank pressure rises to 3psi, as a result of evaporation, the pressure relief valve opens thus allowing the fuel vapour to be channeled to the evaporative canister where it is absorbed by charcoal. For use, as the engine warms up, these vapors are either led to the intake manifold or the air cleaner for burning. Purge valve of canister depends upon the intake manifold vacuum; some models use coolant temperature switches, or computer controlled solenoids to offer the purge. Vents the fuel filler cap in case of occurrence to excessive pressure or vacuum used by the relief valve. To service the foregoing components as well as the fuel filler cap gasket and inspect the hoses and lines with a view of identifying any signs of damage on them. Signs that indicate problems are foul smells of fuel coming from under the bonnet or from the back of the car. The purge valve is checked with a vacuum pump and the purge solenoid is checked with battery voltage. For replacement, remove the negative battery terminal, get to the correct position and unscrew the canister purge valve or the EVAP canister and for reassembly, assemble them in the reverse manner. On some models, the leak detection pump can be detached from the bracket; on automobiles fitted with Fuel Tank Pressure sensor, remove the battery, release fuel tank pressure, and remove Fuel Tank Pressure sensor; when replumbing, do not forget to check on or lubricate the O-ring on the sensor.

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