OBD-II code · Powertrain (generic, extended)
P24A8 EGR Cooler Coolant Pump Performance Stuck Off
The pump is electrically intact but does not deliver flow when commanded - typically a worn impeller or seized rotor.
Is it safe to drive with P24A8?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPump impeller worn or rotor seized
- Less likelyCarbon or debris buildup preventing free movement
- Less likelyComponent wear with age - mechanical play
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 1–3 h
- Emissions test
- Likely to fail
- Parts involved
- Egr Cooler Coolant Pump
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.