Obdaryn

P026ECharge Air Cooler Coolant Pump A Performance

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
  • Needs a drive cycle to confirm a fix
How the car detects it
Some engines cool the charge air with a coolant-to-air cooler in its own low-temperature circuit with an electric pump. P026E means that pump is electrically sound but does not deliver as commanded – judged from feedback by the pump electronics or from the missing temperature drop. FCA documents it on the 2017 Alfa Romeo Giulia and 2018 Stelvio with the 2.0 turbo, together with P024A, and fixed it with a software update; thresholds are not published. Air in the circuit or low coolant lets the pump run dry; hot charge air then costs power.
What you may notice
  • Check engine light on
  • Loss of power in heat or under load
  • Follow-up code P026A possible
  • Level in the auxiliary coolant tank drops
Likely causes
  • LikelyAir in the low-temperature circuit or low coolant (pump runs dry)
  • LikelyPump faulty internally (bearing, impeller, electronics)
  • PossibleSoftware or calibration
  • RareWeak supply or ground, corroded connector
Inspection (ITP)
Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
Repair
Medium · Often possible to do yourself.Typical cost: €30 – €600

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.