OBD Guide

P26FA

Coolant Pump C Overspeed/Air in System

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–111 (est.)

Symptoms

  • Engine overheating
  • Unstable engine operation
  • Coolant leak
  • Coolant pump noise
  • Check Engine light comes on

Causes

  • Coolant pump malfunction
  • Air in the cooling system
  • Damage to pump wiring or connectors
  • Low coolant level
  • Engine control module malfunction

How to Fix

  1. Check coolant level
  2. Repair coolant leaks
  3. Bleed the cooling system to remove air
  4. Check the functionality of the coolant pump
  5. Replace the coolant pump if necessary

Related codes

Error P26FA by Vehicle Brand