What size is the coolant temperature sensor on a Chevy 350?
The coolant temperature sensor on a Chevy 350 engine is typically a 3/8-inch or 10mm sensor. This sensor is responsible for monitoring the temperature of the engine coolant and providing that information to the vehicle's computer, which uses it to optimize engine performance and fuel efficiency.
Understanding the Coolant Temperature Sensor
The coolant temperature sensor, also known as the engine coolant temperature (ECT) sensor, is a critical component in the engine management system of a Chevy 350 engine. This sensor is located in the engine block or the cylinder head, and it measures the temperature of the engine coolant as it circulates through the engine.
The sensor converts the coolant temperature into an electrical signal, which is then sent to the vehicle's computer, known as the engine control unit (ECU) or powertrain control module (PCM). The ECU uses this information to adjust various engine parameters, such as fuel injection, ignition timing, and engine cooling fan operation, to optimize engine performance and fuel efficiency.
Coolant Temperature Sensor Size
The most common coolant temperature sensor size for a Chevy 350 engine is 3/8-inch or 10mm. This size refers to the diameter of the sensor's threaded portion, which is the part that screws into the engine block or cylinder head.
It's important to use the correct size sensor for your Chevy 350 engine, as using the wrong size can lead to improper fitment and potential issues with the engine's performance and operation. If you're unsure of the correct sensor size for your Chevy 350, it's best to consult your owner's manual or a professional mechanic.
Symptoms of a Faulty Coolant Temperature Sensor
- Rough idling or stalling: A faulty coolant temperature sensor can cause the engine to run rough or stall, especially when the engine is cold.
- Poor fuel economy: If the sensor is not providing accurate temperature information to the ECU, the engine may not be able to optimize fuel delivery, leading to decreased fuel efficiency.
- Check engine light: A problem with the coolant temperature sensor will often trigger a check engine light, which can be diagnosed using an OBD-II scanner.
- Engine overheating: In some cases, a faulty coolant temperature sensor can cause the engine to overheat, as the ECU may not be able to properly control the engine cooling system.
If you suspect an issue with your Chevy 350's coolant temperature sensor, it's important to have it diagnosed and repaired by a qualified mechanic to ensure the proper operation of your engine.
What size is the GM coolant temperature sensor thread?
coolant temp sensor. G.M. sensors are 3/8 npt. Bosch CHT sensor thread is 10mm x 1.
What size is the thread on a Chevy 350 temp sensor?
They are usually 3/8" NPT.
What are the symptoms of a 350 TBI coolant temperature sensor?
The engine is idling rough, and very high. Idle is rough when cold, and around 1500 rpm. The idles smooths out when warm, but only settles down to about 1300, roughly twice what it should be. Less and less frequently, the idle settles to around where it should be, and all symptoms go away.
What size thread is a GM IAT sensor?
3/8" - 18
Thread Size: 3/8" - 18 NPTF.
What is the code for coolant temperature sensor Chevy?
The coolant temperature sensor measures the engine's temperature and sends that information to the ECM. If it's faulty or not working correctly, it can cause the engine to run too cold and trigger the P0128 code.
Where is the temperature sensor on a 350 Chevy engine coolant?
This is what the temp sensor looks like, it is either in the middle of the right cylender head, up on the intake manifold or mounter in the right side of the radiator side tank.
Where is the temperature sensor gauge?
The coolant temperature sensor will be located directly behind the coolant pipe. In most modern cars and vehicles, this is present behind the right cylinder head that is located right underneath the air intake pipe. Will a malfunctioning Coolant Temperature Sensor cause a check engine light?
What are the threads on the IAT sensor?
The sensor has 3/8" NPT threads and a threaded weld on bung. The bung has a 7/8" step and 1" main body diameter.
What are the symptoms of a faulty coolant temperature sensor?
How to Spot a Faulty Coolant Temperature Sensor
- Irregular reading of the dashboard gauge (should be 88-90°C when the engine is warmed up)
- Overheating engine (highlighted by dashboard gauge)
- Check Engine Light alert on dashboard.
- Rough engine sound while idling.
What size thread is a LS temp sensor?
Factory LS cylinder heads are machined with metric M12-1.5 coolant sensor ports, so your factory Small Block Chevy sensor won't thread in to them. This adapter allows you to keep your original sensors and integrate them into your swapped LS engine.
