What does the code below temp mean on a Chevy Silverado?

Chevy Silverado P0128: Coolant Thermostat – Below Temp. P0128 is a relatively common OBDII trouble code. It is triggered when your Chevy Silverado‘s coolant temperature fails to reach the proper operating temperature. It’s a generic powertrain code, which means that regardless of who manufactured the vehicle, it’ll have the same meaning (1996+).

What does the code p0128 mean on a Chevy Silverado?

P0128 is a relatively common OBDII trouble code. It is triggered when your Chevy Silverado ‘s coolant temperature fails to reach the proper operating temperature. It’s a generic powertrain code, which means that regardless of who manufactured the vehicle, it’ll have the same meaning (1996+).

What causes the p0128 code on a Chrysler 300?

Here are the most common causes of P0128: Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. When a thermostat is stuck open, it allows coolant to flow through the engine at all times.

Why does my Chevy Silverado have no heat?

Lack of heat – The biggest symptom of the P0128 trouble code in the Chevy Silverado is going to be lack of heat. When the thermostat doesn’t bring the engine all of the way up to the proper operating temp, it means that the water going through the heater core isn’t as hot. This leads to less/no heat.

Where was the 2008 Chevy Silverado 2500HD purchased?

Purchased on 02/25/08 and owned in MD until 04/26/21. Driven an estimated 24,899 miles/year. Last serviced at 319,856 miles in Hancock, MD on 11/09/20 • Vehicle serviced. Mileage: 328,270 miles Body Type: Pickup Color: Purple Engine: 8 Cyl 6.6 L

When was the last serviced Chevy Silverado 2500HD?

Last serviced at 30,119 miles in Signal Hill, CA on 04/27/21 • Vehicle serviced • Pre-delivery inspection completed • Oil and filter changed. No accident or damage reported to CARFAX.

What is the coolant temperature sensor on a Chevy?

P0128 Chevrolet Description. An Engine Coolant Temperature (ECT) sensor monitors the temperature of the coolant. This input is used by the Powertrain Control Module (PCM) for engine control and as an enabling criteria for some diagnosis.

Why is my Chevy Silverado coolant not working?

It is triggered when your Chevy Silverado ‘s coolant temperature fails to reach the proper operating temperature. It’s a generic powertrain code, which means that regardless of who manufactured the vehicle, it’ll have the same meaning (1996+).

When to set the coolant code p0128?

If the Powertrain Control Module (PCM) detects the calibrated amount of air flow and engine run time have been met, and the Engine Coolant Temperature (ECT) has not met the minimum thermostat regulating temperature, the code P0128 will set.

What should coolant temp be when car is cold?

If you have a scan tool with live data, check the engine temperature when the engine is cold, it should be close to outside temperature. Drive a car for 10 minutes and check the engine temperature again, it should be close to 180-220°F or 82-105°C. See the photo. Without a scan tool, the engine temperature sensor can be tested with an ohmmeter.

What is the diagnostic code for coolant thermostat?

P0128 is a diagnostic trouble code (DTC) for “Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

What does the code below temp mean on a Chevy Silverado?