P0128 Coolant Thermostat: Why the Engine Never Warms Up
P0128 means your engine is not reaching its expected temperature in the expected time. What that costs in fuel and wear, how to confirm it from cold, and the real bill.
AutoScan journal
thermostat — Fault codes explained properly, what each one usually costs to put right, and how to check it yourself before anyone quotes you.
P0128 means your engine is not reaching its expected temperature in the expected time. What that costs in fuel and wear, how to confirm it from cold, and the real bill.