Symptoms
Reduced performance and a choked, flat feel on a high-kilometer common-rail diesel.
The fix, step by step
- Oily exhaust gas fed back through the EGR coats the intake in carbon on any common-rail diesel with EGR, the 1KD included.
- Remove the intake plumbing and EGR parts, scrape and clean them (or use a chemical clean), and refit with new gaskets.
- Then fit an oil separator (catch can) so oil mist is trapped before it gets back into the intake.
- Unsealed points out that blanking the EGR is illegal for road use.
Tools & part numbers
- Metric sockets
- scrapers and solvent
- new intake gaskets
- catch-can kit
Where to buy the parts
Intake clean gasket kit, 1KD Hilux/PradoHD Automotive ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Toyota Land Cruiser Prado 120 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.