MajorCommonEngine

Toyota Land Cruiser 100: 1HD-FTE Injection Pump Governor Weight Wear

1HD-FTE Injection Pump Governor Weight Wear 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 $1,800 to $4,800 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
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 High-pressure fuel pump yet. We would rather show none than show a picture of a different part.

What goes wrong

The mechanical governor assembly inside the Denso distributor-type injection pump on the 1HD-FTE engine uses centrifugal flyweights that wear progressively over time, disrupting fuel delivery regulation at idle and low engine speeds. Worn governor weights fail to accurately modulate pump output causing the idle to hunt, surge, or flutter between approximately 600 and 1,000 rpm. This fault is exacerbated by infrequent fuel filter changes and use of low-quality diesel. A full injection pump rebuild by a diesel injection specialist is required; replacement with a remanufactured unit is the more reliable long-term solution.

What you would notice

Rough or hunting idle that fluctuates rhythmically when fully warm
Engine surging at low RPM in traffic or when stationary
Poor and inconsistent throttle response from rest
Increased fuel consumption without explanation
Idle instability worsening after extended highway runs

How to check it

Where to look. Injection pump mounted on driver's side of cylinder head, internally in governor housing at rear of pump

Drive the vehicle until fully warm (minimum 15 minutes), then sit at idle in a quiet environment and observe RPM stability. A faulty governor causes a noticeable rhythmic hunt rather than a steady idle. Request injection pump service history and any rebuild documentation from a diesel injection specialist. If a workshop inspection is possible: Have idle RPM checked with a diagnostic tool.

Parts involved: High-pressure fuel pump.

What it costs to put right

$1,800 to $4,800 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 injection pump been rebuilt or replaced, and by whom?”
“Does the engine idle smoothly and steadily when fully warmed up?”
“What has been the fuel filter replacement interval?”

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 injection pump governor weight wear serious on a Toyota Land Cruiser 100?

We rate it major and common on the Toyota Land Cruiser 100. The mechanical governor assembly inside the Denso distributor-type injection pump on the 1HD-FTE engine uses centrifugal flyweights that wear progressively over time, disrupting fuel delivery regulation at idle and low engine speeds. Worn governor weights fail to accurately modulate pump output causing the idle to hunt, surge, or flutter between approximately 600 and 1,000 rpm. This fault is exacerbated by infrequent fuel filter changes and use of low-quality diesel. A full injection pump rebuild by a diesel injection specialist is required; replacement with a remanufactured unit is the more reliable long-term solution.

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

$1,800 to $4,800 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.