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Toyota Land Cruiser 100: 1HD-FTE EGR Valve Carbon Buildup and Sticking

1HD-FTE EGR Valve Carbon Buildup and Sticking is a common engine fault on the Toyota Land Cruiser 100 on the 1998–2007 cars, and we rate it major. Putting it right costs $350 to $900 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 33 documented faults on the Toyota Land Cruiser 100.

Vehicle
Toyota Land Cruiser 100
Engine
1HD-FTE
Years
1998–2007
Fuel
diesel
Gearbox
auto
System
Engine

This page covers the Toyota Land Cruiser 100 as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Toyota Land Cruiser 100 faults33 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the EGR valve yet. We would rather show none than show a picture of a different part.

What goes wrong

The 1HD-FTE 4.2L turbodiesel in the 100-series uses an EGR (exhaust gas recirculation) valve to route soot-laden exhaust back through the intake. Over time soot and carbon accumulate in the valve body causing it to stick open or closed. A stuck-open valve causes rough idle, black smoke, and power loss. A stuck-closed valve throws EGR fault codes. This is one of the most frequently reported 1HD-FTE issues on NZ/AU 100-series.

What you would notice

  • Rough idle or hunting idle
  • Black smoke from exhaust under acceleration
  • Loss of power, particularly at low revs
  • Check engine light with EGR-related fault codes
  • Diesel knock or uneven running

How to check it

Where to look. EGR valve on intake manifold, rear of 1HD-FTE engine

  1. Inspect EGR valve body and intake manifold for heavy carbon deposits.

  2. Ask whether the EGR has been cleaned or deleted - EGR delete is a common modification among 100-series owners.

  3. If a workshop inspection is possible: Connect an OBD-II scanner and check for EGR-related fault codes (P0401, P0402, P0403).

Parts involved: EGR valve.

What it costs to put right

$350 to $900 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.

Ask the seller

  • “Has the EGR valve been cleaned or replaced?”
  • “Has an EGR delete been fitted?”
  • “Are there any check engine lights currently or in recent history?”

Now check the Toyota Land Cruiser 100 you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

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.

Toyota Land Cruiser 100 buyer questions

Is 1hd-fte egr valve carbon buildup and sticking serious on a Toyota Land Cruiser 100?

We rate it major and common on the Toyota Land Cruiser 100. The 1HD-FTE 4.2L turbodiesel in the 100-series uses an EGR (exhaust gas recirculation) valve to route soot-laden exhaust back through the intake. Over time soot and carbon accumulate in the valve body causing it to stick open or closed. A stuck-open valve causes rough idle, black smoke, and power loss. A stuck-closed valve throws EGR fault codes. This is one of the most frequently reported 1HD-FTE issues on NZ/AU 100-series.

How much does it cost to fix on a Toyota Land Cruiser 100?

$350 to $900 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Toyota Land Cruiser 100 years are affected?

Our research records this fault on the 1998–2007 Toyota Land Cruiser 100. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Inspect EGR valve body and intake manifold for heavy carbon deposits. Ask whether the EGR has been cleaned or deleted - EGR delete is a common modification among 100-series owners. If a workshop inspection is possible: Connect an OBD-II scanner and check for EGR-related fault codes (P0401, P0402, P0403). Look here: EGR valve on intake manifold, rear of 1HD-FTE engine