Toyota Land Cruiser 70: 1VD-FTV EGR Cooler Bypass Pipe Cracking & Coolant Loss

The 1VD-FTV EGR (exhaust gas recirculation) system includes an EGR cooler and associated aluminium bypass pipes that route engine coolant through the EGR circuit to lower exhaust gas temperatures before recirculation. These pipes and their crimped joints are subject to significant thermal cycling and vibration stress. Over time the pipes crack or the crimped joints fail, allowing coolant to escape. The leak can be slow and hard to detect visually as coolant may burn off on hot exhaust surfaces before pooling. The EGR cooler itself can also develop internal leaks allowing coolant into the intake stream. Symptoms include unexplained coolant loss, white smoke on startup, and sweet smell from the exhaust. Coolant loss can lead to overheating if ignored.

• Unexplained coolant loss without visible external puddles
• White or grey smoke from exhaust especially on startup
• Sweet antifreeze smell from exhaust or engine bay
• Coolant level dropping slowly over time
• Overheating warning if coolant loss becomes significant

1. 1

   Check the coolant reservoir level against the min/max marks and ask if coolant has ever needed topping up.

2. 2

   Inspect around the EGR cooler and its bypass pipes for coolant staining, white mineral deposits or dampness.

3. 3

   Start the engine from cold and observe for white exhaust smoke that persists beyond the initial condensation burn-off.

4. 4

   Check for sweet smell around the EGR area with the engine warm.

5. 5

   If a workshop inspection is possible: Run the engine to full operating temperature and pressure-test the cooling system to reveal any slow leak.

Parts involved: EGR valve.

$700 to $2,200 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Has the coolant level ever needed topping up between services?”
• “Has the EGR system or cooling system ever been worked on?”
• “Has the vehicle ever overheated or shown a high temperature warning?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.