Coolant Temperature Sender ️

This precision ECT sender feeds real-time coolant heat data to the engine computer. With accurate temperature info, the ECU adjusts fuel, ignition timing, idle speed, and controls the radiator fan for smooth starts, strong power, and clean emissions.

Why you need it

A healthy sensor keeps warm-up fast, prevents fuel wash, saves fuel, and protects the head gasket. It’s essential after overheating, rough cold starts, or unexplained rich running.

How it works

Inside is a thermistor whose resistance changes with coolant heat. The ECU reads that signal (cold = high resistance, hot = low), then sets fuel mixture and fan operation. The unit seals with an O-ring/washer for leak-free performance.

When it fails ⚠️

Expect hard starts, high idle, black smoke, poor MPG, lazy fan control, boiling coolant, or a Check Engine light. Long-term neglect can foul plugs and damage the catalytic converter.

Tech tips for fitting

Work on a cold engine, relieve pressure, catch coolant, clean the port, use fresh seal, torque to spec, and top up with correct antifreeze. Clear codes and confirm live data ️.

• Atlas/Condor
• Caravan/Homy
• Atlas
• Urvan/King Van
• Safari
• Truck
• Terrano
• Cabstar
• Urvan
• Patrol
• Datsun Truck
• Cedric
• Civilian
• Caravan/Homy Van
• Caravan/Homy Coach
• Atras/Condor
• King Cab
• Pathfinder
• Pickup