Dodge Caliber (2007-2012) Evaporative Emissions Leak Detection Pump Guide
Trying to fix that annoying check engine light from an EVAP leak on your Caliber? This guide is for you.
- A bad leak detection pump is a common cause of EVAP codes P0455 and P0456 on the Caliber.
- Replacement is very easy for a DIYer, requiring no special tools and taking less than 30 minutes.
- The pump is located on the charcoal canister behind the rear passenger wheel well.
- Quality aftermarket brands like Dorman and Standard Ignition are reliable and cost-effective alternatives to OEM.
Is a Bad Leak Detection Pump Causing Your Check Engine Light?
If your check engine light is on, the Evaporative (EVAP) system is a common culprit. A failing leak detection pump is a frequent cause for EVAP-related trouble codes on the 2007-2012 Dodge Caliber. This component is responsible for verifying that your fuel system is properly sealed. When it fails, 🎬 Watch an overview of Dodge EVAP components and troubleshooting steps. it can incorrectly report a leak, even if one doesn't exist.
Common Trouble Codes
A bad leak detection pump can trigger several diagnostic trouble codes (DTCs). The most common ones you'll see on a code scanner for this issue are:
- P0456: EVAP System Small Leak Detected
- P0455: EVAP System Large Leak Detected
- P0440: EVAP System Malfunction
While these codes point to a leak, the pump itself can be the faulty part, sending a false signal. Other potential causes include a loose gas cap, a bad purge valve, or cracked hoses.
Choosing the Right Aftermarket Leak Detection Pump
For the 2007-2012 Dodge Caliber, you don't need to pay dealership prices for a reliable replacement. Aftermarket brands offer quality parts that meet or exceed original equipment (OE) specifications. The two main brands available are Dorman and Standard Ignition (Standard Motor Products).
- Dorman OE Solutions: Dorman is a well-known aftermarket brand that engineers its parts to match the fit and function of the original. They are designed as direct replacements and are built with quality materials for durability. Customer reviews for similar Dorman pumps are generally positive, often confirming that the part fixed their EVAP codes.
- Standard Ignition (SMP): Standard Motor Products has been around since 1919 and has a reputation for producing high-quality engine management parts. They often serve as an original equipment supplier to vehicle manufacturers, and their aftermarket parts are known for their reliability. Their pumps are designed to be a direct OE replacement, ensuring proper fit and function.
Pro Tip: Both Dorman and Standard Ignition are solid choices for your Caliber. Your decision can simply come down to price and availability. Both are considered reliable replacements for the original Mopar part.
Cost of Replacing the Leak Detection Pump
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Dorman, Standard) | $54 - $58 |
| Shop Labor | $60 - $120 |
| Total Estimated Cost (DIY) | $54 - $58 |
| Total Estimated Cost (Installed) | $114 - $178 |
Cost estimates are based on national averages and may vary by location and supplier.
Frequently Asked Questions
Can I replace the leak detection pump myself?
Yes, this is a very DIY-friendly job. The pump is located on the EVAP canister, which is found behind the rear passenger-side wheel well liner. The replacement involves disconnecting a wiring harness and twisting the pump to remove it from the canister. No special tools are required, and it can typically be done in under 30 minutes.
🎬 Follow this step-by-step guide to replace your leak detection pump.What is the most common sign of a failing leak detection pump?
The most common sign is an illuminated check engine light with EVAP codes like P0456 (small leak) or P0455 (large leak). You typically won't notice any change in how the car drives, but you will not be able to pass an emissions inspection.
Do I need to replace the seal with the pump?
Yes, it is highly recommended to replace the rubber O-ring or seal when you replace the pump. A new seal ensures a proper, leak-free connection to the EVAP canister. Some aftermarket pumps include a new seal.
Are there any recalls for the Dodge Caliber EVAP system?
No specific recalls were found for the Evaporative Emissions System Leak Detection Pump on the 2007-2012 Dodge Caliber after a search of the National Highway Traffic Safety Administration (NHTSA) database.
Helpful Videos
Technical Specifications
OEM Part Numbers: 4861962AB 52129221AA
This part is also known as an Evaporative System Integrity Module (ESIM). It mounts directly to the EVAP/charcoal canister. It must be installed in the correct vertical orientation to function properly, as it uses an internal gravity-based weight system.
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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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