Throttle Position Sensor Guide for 1999-2007 Chrysler Town & Country
Experiencing poor acceleration or rough idling? Your minivan's Throttle Position Sensor might be the culprit.
- Symptoms like poor shifting and stalling are very common for a failing TPS on this van.
- This is an easy DIY repair that requires basic tools and less than an hour of your time.
- Choose a high-quality aftermarket brand like NGK or Standard Ignition for better reliability, as cheap sensors are known to cause issues.
- Always check for a Check Engine Light code (like P0121, P0122, or P0123) to help confirm the diagnosis.
Is Your Van Stalling or Shifting Hard?
A failing Throttle Position Sensor (TPS) on a 1999-2007 Chrysler Town & Country can cause problems that you might mistake for a bad transmission. Because the TPS provides critical information about engine load, a bad signal can lead to harsh shifting, delayed gear changes, or the engine revving high before it shifts. Other common signs include a check engine light, sudden stalling, rough or high idle, and hesitation or surging when you press the gas pedal. 🎬 Watch: A breakdown of common bad throttle position sensor symptoms In some cases, the vehicle may enter a reduced-power "limp mode" to prevent damage.
Check Engine Light Codes
A failing TPS will almost always trigger a Check Engine Light. Common Diagnostic Trouble Codes (DTCs) associated with a bad TPS include P0121, P0122, and P0123. A code of P0122 indicates a low voltage signal, while P0123 indicates a high voltage signal. P0121 suggests the sensor's performance is out of the expected range.
Choosing the Right Aftermarket TPS
For Chrysler vehicles of this era, the quality of electronic sensors matters. While OEM Mopar parts are often recommended, high-quality aftermarket brands can be a reliable and more affordable choice. Low-quality sensors are known to fail quickly or be defective right out of the box. It's generally best to avoid the cheapest, no-name options.
Brand Quality Tiers
- Premium Aftermarket (Recommended): Brands like NGK and Standard Motor Products (Standard Ignition) are often considered to be near-OEM quality. They use quality materials and are rigorously tested to meet or exceed original specifications. These are a solid choice for reliability without the full cost of an OEM part.
- Standard Replacement: Brands like Walker Products offer OE-replacement-style sensors that are a step up from generic parts. They are designed to restore original function and are a viable mid-range option.
- Economy Brands: Parts from brands like Global Parts and Replacement fall into the budget category. While they are the most affordable, their long-term reliability can be inconsistent. They may be suitable for a temporary fix or if budget is the primary concern.
Pro Tip: Before replacing the sensor, first inspect the wiring and connector for damage or corrosion. Also, ensure the throttle body is clean, as heavy carbon buildup can sometimes cause similar symptoms. A dirty throttle body can be cleaned, but the TPS itself is a sealed electronic part and should not be cleaned.
Cost of Replacing Your Town & Country's TPS
Replacing the TPS is a budget-friendly repair you can often do yourself. The part itself is affordable, and labor is minimal.
| Item | Estimated Cost |
|---|---|
| New Aftermarket TPS | $27 - $98 |
| Shop Labor | $50 - $100 |
| Total Estimated Cost (DIY) | $27 - $98 |
| Total Estimated Cost (Installed) | $77 - $198 |
Frequently Asked Questions
Where is the throttle position sensor located on a 1999-2007 Town & Country?
The TPS is located on the side of the throttle body, which is part of the air intake system at the top of the engine. It is a small, black plastic sensor held in place by two screws, usually requiring a Torx T25 bit for removal.
🎬 See how to find, remove, and test your sensorCan I replace the TPS myself?
Yes, this is a very DIY-friendly job. It typically takes less than an hour with basic hand tools. You'll need to remove the air intake hose to access the throttle body, unplug the sensor's electrical connector, and remove two screws.
Do I need to reset the computer after replacing the TPS?
It is a good practice to reset the computer after replacement. You can do this by disconnecting the negative battery cable for about 15 minutes. After reconnecting, let the engine idle for a few minutes to allow the computer to relearn the new sensor's parameters.
🎬 Watch this complete diagnosis and replacement walkthroughAre there any recalls for the throttle position sensor?
A search of the National Highway Traffic Safety Administration (NHTSA) database did not find any specific recalls for the throttle position sensor on the 1999-2007 Chrysler Town & Country. Always verify with your specific Vehicle Identification Number (VIN) for the most current recall information.
Helpful Videos
Technical Specifications
OEM Part Numbers: 4606193 4874371 4874371AB
The TPS for the 1999-2007 Town & Country is a three-pin potentiometer sensor. It mounts to the throttle body, typically with two Torx screws. It operates on a 5-volt reference signal from the PCM and sends back a variable voltage signal between approximately 0.5V (idle) and 4.5V (wide-open throttle).
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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.
- Chrysler Town & Country: