What does p0128 mean on a Jeep Cherokee?

What does p0128 mean on a Jeep Cherokee?

Scan your Jeep to verify P0128 is the only code present. If other codes are present, they must be addressed first. Check coolant level and condition. If there is excessive rust and poor coolant condition this can clog up the cooling system or cause the thermostat to stick.

What are the symptoms of a p0129 code?

Symptoms of a P0129 code may include: 1 Excessively rich fuel delivery conditions 2 General lack of engine performance 3 Hesitation upon acceleration 4 Black smoke from exhaust 5 Diminished fuel efficiency

How to lower coolant temp on Jeep p0128?

-Install radiator cap. -Top off coolant level in recovery/overflow tank to the left of radiator. -Start engine (make sure AC is OFF) and let idle untill it reaches operating temperature and electric cooling fan cycles on. -Shut off engine and let cool for several hours.

When do I get a p0129 Mil code?

If the PCM detects a BPS input signal that varies from comparison data by more than the programmed limit, a P0129 will be stored and a MIL will possibly be illuminated. Symptoms of a P0129 code may include:

Scan your Jeep to verify P0128 is the only code present. If other codes are present, they must be addressed first. Check coolant level and condition. If there is excessive rust and poor coolant condition this can clog up the cooling system or cause the thermostat to stick.

What should coolant temp be on Jeep p0128?

padgett, here’s what I have to go on regarding condtions for the P0128 to set. When monitored: With the engine running, ambient temperature between 8C (17.6F) & 50C (122F), startup coolant temperature less than 50C (122F) and average vehicle speed greater than 16KPH (10MPH), untill the vehicle untill coolant temperature reaches 85C (185F).

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 is DTC p0128 can’t clear?

Continued to drive for a few more days. I still cannot get inspected (NY) because the vehicle is showing a P0128 as a “stored” code (using Foxwell NT201 OBD reader), even though the CEL is off. Any clues on how long it takes to clear a stored code?

Continued to drive for a few more days. I still cannot get inspected (NY) because the vehicle is showing a P0128 as a “stored” code (using Foxwell NT201 OBD reader), even though the CEL is off. Any clues on how long it takes to clear a stored code?

padgett, here’s what I have to go on regarding condtions for the P0128 to set. When monitored: With the engine running, ambient temperature between 8C (17.6F) & 50C (122F), startup coolant temperature less than 50C (122F) and average vehicle speed greater than 16KPH (10MPH), untill the vehicle untill coolant temperature reaches 85C (185F).

Is the Jeep Wrangler ready for an inspection?

Thermostat was replaced and I drove multiple cycles. CEL went out, and no Pending or Permanent codes exist. But vehicle is not ready for inspection because the code is still “stored”. Did you find the recommended reading relevant to this discussion?

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