What causes p0128 in a Jeep Wrangler?
The most common cause for P0128 in a Jeep is the engine coolant thermostat is stuck open. A simple way to diagnose this is to feel the radiator hose and monitor how hot the temperature of the coolant is when it starts flowing through the radiator hose, however, you should be extremely careful when doing this as you could be burned.
What should I do if I have a p0128 trouble code?
Your intake air temperature sensor, coolant temperature sensor and coolant fan could also signal this trouble code, so these should be inspected after you look over your thermostat and coolant level. Start with the easiest repair solution, which is low coolant levels.
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.
What does p0128 mean on a Dodge thermostat?
Since this often indicates a problem with the thermostat, regardless if you are driving a Dodge, a Ford, or a Jeep, the P0128 code is likely to appear once your coolant thermostat or temperature sensor fails. Of course, as was mentioned earlier, there are other potential causes for the code, as well.
What could cause the code p0128?
A stuck thermostat is the most common cause of a P0128 code. When the engine warms up, wax inside the thermostat expands pushing down on spring loaded valve. This causes the valve to open; flow to the bypass port is blocked and flow to the radiator is enabled.
What does the p0128 code mean?
P0128 is a diagnostic trouble code (DTC) for “Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)”.
What is check engine code p0128?
Check Engine code P0128. The Check Engine light is on with the code P0128 for the coolant thermostat (coolant temperature below thermostat regulating temperature).
What causes a p0128 code on GM?
P0128 Causes: GMC Envoy. Fixing P0128 is usually a pretty easy thing to do, since 90% of the time it’s going to be the thermostat that is throwing the code. 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.