Any resulting engine damage would take a period of years most likely, but the chance is there. P0128 Description The thermostat is a component that blocks the flow of coolant to the radiator until the engine has warmed up. The manufacture designs the engine to run at a specific operating temperature for the most efficient operation. In most cases, whenever the code P0128 is present, the thermostat is replaced. If the plug wires are out of sequence, the explosion occurs at the wrong time. .
P0128 code definition Coolant Thermostat Coolant Temperature Below Thermostat Regulating Temperature What the P0128 code means The P0128 code means that the engine coolant is not getting warm enough, fast enough. Now don't ask yourself; What should you do with P0128 code? The role of the Error Code P0128 is to track the amount of time it takes for the engine to reach and maintain its right operating temperature. P0128 Engine Trouble Code Meaning of P0128 engine trouble code is a kind of powertrain trouble code and when your car's 'P0128 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. P0128 is not a very serious code. This is due to a leak in the seal or the thermostat open stuck. The primary purpose of coolant is to provide constant lubrication to various internal parts.
For more information about these error codes, check out our website. If your are for a different car, select that vehicle series before searching for the diagnostic codes because not all used by one manufacture are used by the other makes. Car manufacturers require coolant for several reasons. What are the symptoms of the P0128 code? When the thermostat opens, very hot coolant should start to flow and quickly warm the radiator hose up. However, it is common for the engine to take a longer time to warm up after cold starts. Anyone else running the 170 and throwing codes? This past weekend I switched out my Jet 180 Thermo for the ValuCraft 170 thermo.
Is the engine coolant temperature sensor connector free from corrosion and plugged in properly? The distinction between the two will help verify the code. If the hose gets hot all of sudden like it should, then the next thing to check is the reading you are getting from the coolant temperature sensor. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. The next step is to see if the engine temperature sensor is working correctly. My thermostat will be going back to stock when I change the anti freeze if not sooner.
We buy all our scanners from them and think you should too! Using tap water instead of distilled water will also cause problems in the long run. We are not responsible for any actions you take on your vehicle. Third Step If the readings you get in the Coolant Temperature will not go beyond 160° — 170° F in the span of 15 minutes, then try to put your foot on the brake, shift to Drive and then press the throttle for around two to three minutes and see if the readings increase. You will also notice the engine temperature needle dropping when driving at higher speeds along with a check engine light in the console. The intent of the P0128 code is to indicate a faulty thermostat.
The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. I thing Im just going to leave in the stat since I like the car running 174-181. It opens or closes to allow coolant to circulate inside the motor. I did this after my 0128 code was coming in every few days. Also, make sure you verify the readings of your Intake Air Temperature sensor are right, not too hot or too cold in relation to both air temperature and under-hood air temperature.
How much does it cost to fix P0128 Fault Code? What repairs can fix the P0128 code? The list of automotive Makes at the right edge of the screen. If the above items check out good, replace the thermostat Thanks Goat. The resistance across the sensor terminals should change with the temperature according to the chart that you can find in the. Its just funny how 6 degrees difference from my Jet 180 to this has made codes start poppin. How to Fix The obvious and easy solution is to replace the thermostat. This will cause the Fuel System to go back to warm up mode, which is a richer mixture.
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. It might have something to do with age or high mileage, but one of the primary reasons is accumulated rust and debris in the thermostat. If you have any doubt as to repairs on your vehicle, please contact your technician. Read more about What this means is the engine is unable to reach the proper operating temperature after starting the motor. If this is the case, the connectors will typically deteriorate and cause a poor connection.
Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. What causes the P0128 code? During the warmer months, the ambient temps will help the vehicle warm up normally, whereas the cold weather will make it harder for the engine to warm up. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. These values will help determine whether the vehicle was being driven on a freeway or slower speeds. I heard Ghost mention his threw codes 3 times then stopped doing it. The vast majority of the time, they would be right.
Generally speaking, the hose should be barely warm until the thermostat opens. Replacing the thermostat often solves the. The thermostat is close during cold starts to help the engine warm up. In very rare cases, there can be a problem with the supply voltage that is supplied by the Engine Control Module. Start the engine and take note of how the Coolant Temperature values change with the heater turned off.