Standard Ignition TX38 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor Overview

Standard Ignition TX38 is an engine coolant temperature sensor built for accurate temperature measurement and reliable engine management feedback. It uses a bolt-on attachment, a round female plug-in connector, and a 2-blade male terminal layout for direct service replacement on listed applications.

Compatible With 1984-1986 Dodge, Plymouth, and Mitsubishi vehicles including Dodge Caravan, Dodge Aries, Dodge Colt, Dodge Conquest, Dodge Power Ram 50, Dodge Ram 50, Plymouth Conquest, Plymouth Voyager, Mitsubishi Cordia, Mitsubishi Tredia, and Mitsubishi Mighty Max. The TX38 is a practical choice when servicing older fuel and cooling system diagnostics on these platforms.

Key Features

• Engine coolant temperature sensor for temperature signal input to the engine control system
• Bolt-on mounting for secure installation
• Round female connector with plug-in design
• 2-blade male terminal configuration
• Tight thermistor response tolerances for accurate temperature readings
• 100% factory tested before shipment
• Broad application coverage for select Dodge, Plymouth, and Mitsubishi models

Detailed Description

Standard Ignition TX38 is engineered to deliver consistent coolant temperature feedback, which is critical for proper engine operation, fuel control, and cooling system monitoring. Standard Ignition controls the manufacturing process from component selection through final assembly, and the sensor design is built around tight thermistor response values to maintain measurement accuracy. This part cross-references Bosch 12031 for the same application. The TX38 is listed for 1984-1986 Dodge and Plymouth passenger and light truck applications, as well as Mitsubishi Cordia, Tredia, and Mighty Max coverage in the same model years.

What This Sensor Helps Address

• Incorrect coolant temperature readings on the dash or engine management system
• Hard starting or poor cold-engine fuel control caused by faulty temperature input
• Rough idle or drivability issues tied to inaccurate coolant temperature data
• Cooling fan or enrichment strategy problems related to sensor signal errors
• Check engine concerns linked to coolant temperature sensor failure

Installation Notes and Tips

• Verify connector style, terminal count, and bolt-on mounting before installation.
• Inspect the harness plug and terminals for corrosion, looseness, or heat damage.
• Confirm the engine application and note-specific fitment, including 1984 Mitsubishi Cordia and Tredia listings marked to 12/83.
• Use the vehicle service information for proper sensor location and torque procedure.
• Check the cooling system condition before replacing the sensor to avoid repeat faults.

Quality Assurance

Standard Ignition states that each coolant temperature sensor is factory tested for performance verification. The TX38 is manufactured under controlled processes to support consistent part operation and dependable service on the listed Dodge, Plymouth, and Mitsubishi applications.