Standard Ignition TS-423 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for OE-Style Cooling Control

Standard Ignition TS-423 is an engine coolant temperature sensor built for direct replacement in select Chevrolet, Suzuki, Pontiac, and Geo applications. It uses a screw-on attachment method, a single rectangular plug-in connector, and a 3-blade male terminal layout for a secure electrical connection.

Compatible With 1995-2008 Chevrolet Tracker, Suzuki XL-7, Suzuki Grand Vitara, Suzuki Vitara, Suzuki Esteem, Chevrolet Metro, Suzuki Swift, Pontiac Firefly, Suzuki Sidekick, and 1997 Geo Metro mounted to the thermostat housing. Standard Ignition TS-423 is a practical choice when you need accurate coolant temperature input for engine management and gauge operation.

Key Features

• Engine coolant temperature sensor for cooling-system and engine-control applications
• Screw-on attachment method for a threaded mounting style
• 1 rectangular plug-in connector with female connector gender
• 3 male blade terminals for the electrical interface
• Brass and plastic construction with gold and gray finish
• 12-volt electrical specification
• Direct interchange reference for common OE-style replacement needs

Detailed Description

The TS-423 is designed to report coolant temperature to the vehicle’s control system so the engine can manage fuel delivery, idle strategy, and temperature-related functions. This sensor is used across a wide range of compact and midsize import and domestic platforms, including Chevrolet Tracker and Suzuki Grand Vitara applications, making it a relevant search match for drivers replacing a faulty coolant temp sensor on these vehicles. Standard Ignition TS-423 also cross-references Walker Products 211-1051 for the same application.

Common Problems This Sensor Can Help Address

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting when the engine is cold
• Rough idle or unstable warm-up behavior
• Fuel mixture issues caused by inaccurate temperature input
• Cooling fan or engine management concerns tied to bad temperature data

Installation Notes and Tips

Verify the connector style, terminal layout, and threaded mounting location before installation. On the 1997 Geo Metro application, the sensor is mounted to the thermostat housing. Inspect the connector for corrosion and confirm the sealing surface is clean before threading the sensor into place.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. TS-423 is built to match the listed connector, terminal, and mounting specifications for the covered applications.