Ram 1500
P0128
The P0128 code indicates that the engine coolant temperature is below the expected temperature range for optimal engine operation. This issue is commonly found in the Ram 1500 DT (2019-Present) and can lead to poor engine performance and increased emissions.
2 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
1 affected
Cooling System
Symptoms
5 common
- •Check engine light illuminated
- •Engine runs cooler than normal
- •Poor fuel economy
- +2 more
Most Affected Generations
1 generation
DT
2
Top Affected Components
1 component
Cooling System
2
Severity Levels
1 level
medium
2
Quick Facts
2
Total Solutions
1
Affected Components
5
Common Symptoms
1
Generations
All Solutions
Showing 2 of 2 solutions for error code P0128 across all generations.