Throttle Position Sensor Guide for the 2002-2007 Dodge Caravan
Experiencing rough idling or poor acceleration? Your Caravan's Throttle Position Sensor might be the culprit.
- A bad TPS causes symptoms like poor acceleration, rough idle, stalling, and erratic shifting.
- Replacement is a simple, DIY-friendly job that requires basic tools and less than 30 minutes.
- Check for water leaks from the windshield cowl above the sensor, as this is a known cause of failure on similar Dodge vehicles.
- No specific calibration is needed after replacement; the engine computer will adapt to the new sensor.
Is Your Caravan's Throttle Position Sensor Failing?
A failing Throttle Position Sensor (TPS) can cause a range of frustrating drivability issues. Because the sensor's signal is critical for fuel management and transmission control, a bad sensor can make your van run poorly. Watch for several symptoms happening at once.
Known Issues & Recalls
Searches of the National Highway Traffic Safety Administration (NHTSA) database did not show any specific recalls for the throttle position sensor on 2002-2007 Dodge Caravan models. An earlier investigation into sticking throttle bodies on some 2000 model year vans was closed without requiring a recall. However, owners of similar Dodge vehicles have reported that water dripping from a worn or poorly sealed windshield cowl can land directly on the TPS and its connector, potentially causing premature failure. 🎬 Watch: How to find, remove, and test your Caravan's sensor. If you are replacing this sensor, it's a good idea to check the condition of your cowl seal.
Choosing the Right Aftermarket TPS
When replacing the TPS on your Caravan, you have several aftermarket options. While an OEM Mopar part is available, many aftermarket brands offer a balance of quality and value. They can be grouped into different tiers based on reputation and materials.
Premium Aftermarket Brands:
- Standard Ignition (Standard Motor Products): A well-regarded brand in the aftermarket, often considered a top-tier replacement. They emphasize rigorous testing to match OE performance.
- NGK (NTK): Known for ignition components and sensors, NTK is the sensor-focused brand from NGK. They promote their sensors as being designed to meet or exceed OE specifications for stable and rapid response.
Quality Mid-Range Brands:
- Walker Products: An ISO-certified company that specializes in engine management components. They state their parts are 100% tested and engineered with high-quality materials for proper fit and function.
Economy & Value Brands:
- Global Parts: This brand falls into the value category, offering a cost-effective solution for your repair needs.
- Replacement: Often a private-label or generic brand, these parts provide a functional repair at the lowest price point, suitable for budget-conscious repairs.
Typical Replacement Costs
The cost to replace a TPS can vary depending on whether you do it yourself or hire a professional mechanic.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Part | $26.96 - $43.68 |
| Shop Labor | $61 - $90 |
| Total Professional Replacement | $88 - $134 |
| New OEM (Mopar) Part | $80 - $120+ |
Pro Tip: Replacing the TPS is a simple DIY job for most home mechanics. It is held on by two screws and is easily accessible on the throttle body, potentially saving you around $75 in labor costs.
🎬 See this quick walkthrough for replacing the sensor yourself.Frequently Asked Questions
How hard is it to replace the Caravan's TPS myself?
This is a beginner-friendly repair. The sensor is located on the side of the throttle body. The process involves disconnecting the electrical connector, removing two T-25 Torx screws, swapping the sensor, and reinstalling the screws and connector. The entire job typically takes less than 30 minutes.
Does a new Throttle Position Sensor need to be calibrated?
For the 2002-2007 Dodge Caravan, a specific calibration procedure with a scan tool is generally not required after replacing the TPS. Some mechanics recommend disconnecting the battery for about 15 minutes to allow the engine computer to reset and relearn the new sensor's values, but often the system adapts on its own after a short drive.
What do the common TPS error codes mean?
Your check engine light may come on with specific codes related to the TPS. Common codes include P0121 (performance/range issue), P0122 (circuit low input), and P0123 (circuit high input). These codes point directly to a problem with the sensor's signal or the circuit itself.
🎬 Learn how to test a TPS to confirm it's actually bad.Can I just clean the Throttle Position Sensor?
No, the TPS is a sealed electronic component and is not serviceable. It works like a volume knob, and internal wear causes the signal to become erratic. If the sensor is faulty, it must be replaced. You can, however, clean the throttle body itself while you have the sensor off.
Helpful Videos
Technical Specifications
OEM Part Numbers: 4686360AC 04686360AC
3-pin rectangular connector, mounts to throttle body with two T-25 Torx screws.
We Have This Part in Stock
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.
- Dodge Caravan: