P0128 code. Thermostat. Worth replacing? - Jeep Wrangler Forum
Jan 27, 2023 · The P0128 code indicates that the engine coolant temperature is below the thermostat regulating temperature. While the CEL might disappear on its own and the Jeep might seem to be …
DTC P0128 Can't Clear - Jeep Wrangler Forum
May 29, 2018 · The P0128 code indicates that the engine coolant temperature is below the thermostat regulating temperature. The most common solution is to replace the thermostat, often along with the …
Permanent P0128 Fault Code - Jeep Wrangler Forum
Apr 4, 2023 · The P0128 code on a Jeep JK indicates the engine isn't reaching the required operating temperature within a specified time. The most common cause is a faulty thermostat. Replacing the …
P0128 - Thermostat failure - Jeep Enthusiast Forums
Dec 14, 2011 · Short version P0128 Thermostat Rationality P0128 JEEP Description Indicates that the thermostat monitor has not achieved the required engine operating temperature within a specified …
P0128 went away before it could be fixed - Jeep Wrangler Forum
Nov 10, 2021 · The P0128 code indicates that your engine coolant temperature is below the thermostat regulating temperature. The code may disappear temporarily if the issue isn't consistently detected …
p0128 code 'coolant temp below thermostat - Jeep Wrangler Forum
Dec 21, 2016 · The P0128 code indicates that the coolant temperature is below the thermostat regulating temperature. The most common cause, especially on a Jeep Wrangler JK, is a faulty …
P0128 code - Jeep Wrangler Forum
Dec 14, 2023 · The P0128 code indicates that the engine is not reaching the required operating temperature within a specified time. The most common solution is to replace the thermostat, ideally …
P0128 Code and bad cylinder head? - Jeep Wrangler Forum
Aug 22, 2018 · The P0128 code (coolant temperature below thermostat regulating temperature) on a 2012 Jeep Wrangler JK can cause drivability issues such as loss of power, bogging down during …
Error Code P0128 - Jeep Wrangler Forum
Jan 11, 2022 · To clear the code, try disconnecting the battery for a few minutes. Some codes require multiple successful drive cycles to clear. If the problem persists, consider the coolant temperature …
Fault Code P0128 advice - Jeep Enthusiast Forums
Apr 18, 2018 · Fault Code P0128 advice Jump to Latest 18K views 12 replies 6 participants last post by cranbiz Nov 7, 2018 A