Chrysler Sebring Input and Output Speed Sensor Guide (2001-2010)
Solve your transmission shifting problems and fix a dead speedometer by understanding these critical sensors.
- Your Sebring has two speed sensors (input and output); diagnose the correct one before buying.
- A dead speedometer points to the output sensor, while shifting issues alone could be the input sensor.
- The replacement procedure is different for 2001-2006 (from top) and 2007-2010 (from bottom) models.
- Stick to reputable aftermarket brands like Delphi or Standard Ignition to avoid premature failure.
Understanding Speed Sensor Failure in Your Sebring
If your 2001-2010 Chrysler Sebring suddenly starts shifting harshly, your speedometer dies, or the check engine light comes on, a failing transmission speed sensor is a likely culprit. These cars use two sensors—an input and an output—and it's crucial to know which one has failed before you buy a replacement. A faulty sensor can make your car unpredictable and unsafe to drive.
Input vs. Output Sensor: Which One Is Bad?
Diagnosing the right sensor is key. While both can cause similar shifting problems, some symptoms are unique:
- A failing Output Speed Sensor (OSS/VSS) will almost always cause an erratic or completely dead speedometer. 🎬 Watch this video to see a speedometer failure in action. Since the car's computer doesn't know how fast you're going, it may also disable cruise control and cause harsh shifting.
- A failing Input Speed Sensor (ISS) won't affect the speedometer but will cause serious shifting problems. The transmission may delay shifts, slam into gear, or get stuck in one gear (often called "limp mode").
Known Issue for 2007-2008 Sebring Models
Chrysler issued a recall (H07) for some 2007-2008 Sebring models for a corroding electrical connector. Symptoms can include engine stalling, no-start conditions, and cruise control failure, which can be mistaken for a bad speed sensor. It's worth checking if your vehicle was affected by this recall, as the fix is free at a dealership.
Choosing the Right Aftermarket Speed Sensor
When buying a new aftermarket sensor, quality matters. The market is filled with options, but they are not all created equal. Sticking with a reputable brand can save you from doing the job twice.
- Premium Brands (OEM Quality): Brands like Delphi and Standard Ignition (SMP) have a strong reputation for producing reliable sensors that meet or exceed original specifications. They are a trusted choice for a long-lasting repair.
- Reliable Value Brands: Walker Products and Holstein offer a good balance of quality and price. They are solid options for owners looking for a dependable part without the premium price tag.
- Economy Brands: Brands like URO Parts, Global Parts, and Skyward are typically the cheapest. However, forum users have reported issues with fit and long-term durability for URO Parts on more critical components. These are best avoided for a part that is essential for transmission function unless you are on a very tight budget.
Pro Tip: Before ordering, get your car's computer scanned. A generic P0700 code just means there's a transmission fault. You need a scanner that can read transmission-specific codes (like P0720 for the output sensor) to confirm which sensor has failed.
Cost of Replacing a Sebring Speed Sensor
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $14 - $108 |
| Shop Labor | $60 - $120 |
| Total Estimated Cost (DIY) | $14 - $108 |
| Total Estimated Cost (Shop) | $74 - $228 |
Installation Differences by Generation
The replacement process is different depending on your Sebring's year.
- 2001-2006 Models: The sensors are on top of the transmission and can be accessed from the engine bay. You will need to remove the air filter box to get to them. 🎬 See this walkthrough for replacing sensors on older Sebring models. The input sensor is closer to the engine, while the output sensor is toward the driver's side wheel. A 1-inch socket is typically required.
- 2007-2010 Models: The sensors are located on the side of the transmission and are accessed from underneath the car. You'll need to remove the driver's side wheel and splash shield. The output sensor is the more forward of the two. 🎬 Watch how to replace the output sensor on 2007-2010 models. This job usually requires a 25mm wrench or socket.
Important: These sensors have plastic threads and should only be snugged down, not overtightened. Always make sure the old O-ring comes out with the old sensor to prevent leaks.
Frequently Asked Questions
Can I drive my Sebring with a bad speed sensor?
You can, but it is not recommended. A bad sensor can cause unpredictable shifting, stalling, and an incorrect speedometer, which are all safety risks. It's best to get the sensor replaced as soon as possible to avoid potential damage to the transmission.
Are the input and output speed sensors the same part?
Sometimes, but not always. While they may look identical, they can have different internal electronics. Mopar often lists separate part numbers for the input (4800878) and output (4800879) sensors. It is critical to order the specific sensor you need for your vehicle's year and transmission type.
What is "limp mode"?
Limp mode is a safety feature. When the transmission computer detects a serious problem, like a failed speed sensor, it may lock the transmission in a single gear (usually 2nd or 3rd) to protect it from further damage. This allows you to "limp" the car to a safe location or repair shop.
Do I need to reset the computer after replacing the sensor?
It's a good practice. After replacing the sensor, the check engine light may turn off on its own after a few drive cycles. However, to be sure, you can clear the codes with a scan tool or by disconnecting the battery's negative terminal for about 15 minutes.
Helpful Videos
Technical Specifications
OEM Part Numbers: 4800878 (Input Sensor) 4800879 (Output Sensor) 04800878 04800879 5078554AA
The 2001-2010 Chrysler Sebring models with the 4-speed automatic transmission (41TE) use two distinct speed sensors. The Input Speed Sensor (ISS) and Output Speed Sensor (OSS) are magnetic pickup sensors that generate an AC signal. While they appear similar, they often have unique part numbers and are not interchangeable. The 2007-2010 models with the 6-speed (62TE) transmission may use a different sensor assembly. Always verify the part number with your vehicle's VIN.
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.
- Chrysler Sebring:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Understanding Speed Sensor Failure in Your Sebring
- Input vs. Output Sensor: Which One Is Bad?
- Known Issue for 2007-2008 Sebring Models
- Choosing the Right Aftermarket Speed Sensor
- Cost of Replacing a Sebring Speed Sensor
- Installation Differences by Generation
- Frequently Asked Questions
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