Coolant Temperature Sensor - XEMS35 - CI

This coolant temperature sensor (part number XEMS35) from CI is a high-quality replacement part. I...

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My Motor WorldCi Ignition Xems35 Coolant Temperature Sensor
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Product Information

Full details

This CI Coolant Temperature Sensor (XEMS35) is for vehicle owners and mechanics needing a reliable replacement part for their Ford or Mazda vehicles. Its key benefit is ensuring accurate engine temperature readings for optimal performance and preventing overheating. A potential caveat is that it does not include a cable, which must be sourced separately if needed. The sensor features a durable black angular housing, a 1/8" x 27 NPTF thread, and a standard 2-pin connector, offering direct compatibility with various OEM and aftermarket part numbers.

All features

Model Part NumberXEMS35
BrandCI

Extended Product Information

FAQs

What is the thread size of the CI XEMS35 Coolant Temperature Sensor?

The sensor features a 1/8" x 27 NPTF thread size.

Does this sensor come with a cable?

No, the CI XEMS35 Coolant Temperature Sensor does not come with a cable. The cable must be sourced separately if required.

What type of connector does this sensor have?

It has a standard 2-pin connector.

Which vehicles is this sensor compatible with?

It is compatible with vehicles requiring OEM part numbers like FORD 1057836 and MAZDA 1E0418760, and aftermarket cross-references include BorgWarner (BERU) ST014 and ELTA AUTOMOTIVE EV0051. Always confirm with your vehicle's specifications.

How do I install the coolant temperature sensor?

Installation involves ensuring the engine is cool, disconnecting the electrical connector, removing the old sensor, installing the new XEMS35 sensor with appropriate thread sealant, reconnecting the electrical connector, and refilling/bleeding the cooling system.

What does the black angular housing signify?

The black angular housing is part of the sensor's construction, designed to protect the internal components and ensure a secure fit within the engine's cooling system.

Where can I find compatible replacement cables?

Replacement cables can often be found through automotive parts suppliers. You will need to match the connector type and length requirements for your specific vehicle.

Troubleshooting

Engine temperature gauge not working or inaccurate

Check the electrical connection to the sensor. Ensure the sensor is correctly threaded and tightened. Verify compatibility with your vehicle. If the issue persists, the sensor may be faulty, or there might be a wiring or gauge problem.

Check Engine Light (CEL) is on with temperature-related codes

Scan the vehicle for diagnostic trouble codes (DTCs). Common codes relate to sensor circuit range/performance or signal issues. Ensure the sensor is properly installed and connected. If the code points to the sensor itself, replacement may be necessary.

Coolant leaks around the sensor

Ensure the sensor was tightened to the correct torque specification. Check the threads on both the sensor and the engine block for damage. Reapply thread sealant if necessary and retighten.

Cooling fan not engaging or staying on constantly

An inaccurate reading from a faulty coolant temperature sensor can cause the ECU to mismanage the cooling fan. Replacing the sensor may resolve this issue if it is the root cause.

Pros and Cons

Pros

  • High-quality replacement part designed for reliability.
  • Ensures accurate engine temperature monitoring.
  • Durable construction suitable for engine bay conditions.
  • Standardized threading and connector for easy installation.
  • Broad cross-reference compatibility simplifies part identification.

Cons

  • Does not include a connecting cable, requiring separate purchase if needed.
  • Requires specific knowledge of vehicle compatibility for installation.
  • Installation may require specialized tools for access and removal/installation.

Setup, Compatibility & Care

Compatibility Check:

Before installation, verify that your vehicle's make, model, and year are compatible with the CI Coolant Temperature Sensor XEMS35. Cross-reference the part number with your vehicle's existing sensor or consult an automotive parts database. The sensor is compatible with OEM references such as FORD 1057836 and MAZDA 1E0418760, and aftermarket references like BorgWarner (BERU) ST014 and ELTA AUTOMOTIVE EV0051.

Installation:

  1. Ensure the engine is completely cool before beginning.
  2. Locate the existing coolant temperature sensor on the engine block or cylinder head.
  3. Disconnect the electrical connector from the old sensor.
  4. Carefully unscrew and remove the old sensor. Be prepared for minor coolant spillage; have a rag and container ready.
  5. Apply a small amount of thread sealant (if recommended for your application) to the threads of the new XEMS35 sensor.
  6. Screw the new sensor into the port by hand to avoid cross-threading, then tighten with an appropriate wrench to the manufacturer's specified torque.
  7. Connect the electrical harness to the new sensor.
  8. If the sensor came without a cable, ensure your existing or new cable is properly connected.
  9. Refill any lost coolant and bleed the cooling system according to your vehicle manufacturer's instructions.
  10. Start the engine and check for leaks around the sensor.

Care:

This is a sealed electronic component. Avoid applying excessive force, harsh chemicals, or high-pressure cleaning directly to the sensor. Regular checks for coolant leaks around the sensor housing are recommended as part of routine maintenance.

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