Dodge Challenger Evaporative Leak Detection Pump Guide (2008-2021)
Fix that annoying check engine light caused by a faulty EVAP leak detection pump in your Challenger.
- A bad leak detection pump is a very common reason for EVAP check engine light codes on a Dodge Challenger.
- Always check that your gas cap is tight and its seal is intact before replacing any parts.
- Aftermarket brands like Dorman and Standard Ignition offer reliable, cost-effective replacements for this high-failure OEM part.
- This is a simple DIY repair that can be done in under an hour with basic tools.
Is a Bad Leak Detection Pump a Serious Problem?
A failing Evaporative Emissions System Leak Detection Pump on your 2008-2021 Dodge Challenger is not a critical failure that will leave you stranded. However, it will cause an automatic failure on an emissions test. The most common issue is an illuminated check engine light and a persistent fault code that won't go away until the part is replaced. While you can continue to drive the car, you won't be able to pass a state inspection, and you won't know if a new, more serious problem triggers the check engine light while it's already on.
Always Check the Gas Cap First
Before you spend money on a new pump, always check your gas cap. A loose or worn-out gas cap seal is a very common cause for the same EVAP leak codes (like P0456). Make sure it's tight. If the seal looks cracked or worn, replacing the gas cap is a cheap and easy first step.
🎬 Watch this quick guide on fixing gas cap related EVAP codes.Choosing the Right Aftermarket Leak Detection Pump
For the Dodge Challenger, the original equipment (OEM) Mopar leak detection pump has a high rate of failure. Because of this, choosing a quality aftermarket part is a smart and cost-effective decision. Aftermarket brands like Dorman and Standard Ignition (also known as Standard Motor Products) make direct-fit replacements that often meet or exceed the original's quality.
- Dorman: Dorman is a well-known brand that offers direct replacement parts. Their pumps for the Challenger (models 310-215 and 310-233) are a popular fix for EVAP codes, with many owners confirming the part solved their check engine light issue.
- Standard Ignition (SMP): Standard is another trusted brand that produces OE-quality replacement components. Their pumps are designed to be a reliable alternative to the more expensive factory part.
Given that the pump is a simple, non-mechanical part that fails electronically, there is little risk in choosing a reputable aftermarket brand over the more expensive OEM Mopar part.
Cost of Replacing a Dodge Challenger Leak Detection Pump
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Dorman, Standard) | $49.37 - $57.02 |
| New OEM (Mopar) | $73.00 - $94.00 |
| Shop Labor | $100.00 - $175.00 |
Pro Tip: A Simple DIY Job
Replacing this pump is one of the easier repairs you can do on your Challenger. It's located behind the rear passenger-side wheel well liner. The job requires removing the wheel and some plastic clips, unplugging the sensor, and twisting the old pump out of the charcoal canister. Most DIY mechanics can complete this in under an hour.
🎬 See a detailed walkthrough of the pump removal process.Frequently Asked Questions
Where is the leak detection pump located on my Challenger?
You can find the leak detection pump attached to the charcoal canister, which is located behind the fender liner of the rear passenger-side wheel.
What are the symptoms of a bad leak detection pump?
The most common symptom is a steady check engine light with EVAP codes like P0455, P0456, or P0442. 🎬 Learn how to test and understand your leak detection pump. In some cases, you might get a "gas cap" warning on your dashboard. A fuel smell is not common unless there is a separate leak in a hose.
Is there a recall on this part for my Challenger?
No, there is no specific recall for the leak detection pump. There was a recall (NHTSA UB4) for the entire evaporative emissions canister on some 2013-2016 models, but this did not target the pump itself.
Do I need to replace the filter or seal with the pump?
It is highly recommended to replace the rubber o-ring or seal when you replace the pump to ensure a proper seal with the canister. Many aftermarket pumps come with a new seal included. The separate EVAP system filter can also become clogged and may be worth replacing at the same time.
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Technical Specifications
OEM Part Numbers: 04861962AD 4861962AC 4861962AB 4861962AA 4891685AB 4891685AA
Also known as an Evaporative System Integrity Module (ESIM). Attaches directly to the charcoal canister located in the rear passenger wheel well.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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