2587066011 Toyota VALVE ASSY, EGR VACUUM MODULATOR, Price: 101.64$, Weight: 0.435kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Toyota |
2587066011 |
VALVE ASSY, EGR VACUUM MODULATOR |
8 |
0.435 |
|
101.64$ |
Originals
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Toyota |
VALVE ASSY, EGR VACUUM MODULATOR
|
8 |
0.5
|
2-3
|
84.70$
|
Compatibility
| Description | Model | Options | Prod Period | Diagram |
|---|---|---|---|---|
| FJ,FZJ,HDJ,HJ,HZJ,KZJ,LJ,PZJ,RJ7# | FZJ75LV-MRK | ATM,MTM: MANUAL TRANSMISSION; Building Condition: COMPLETELY BUILT UNIT; Driver's Position: LEFT-HAND DRIVE VEHICLES; Body: HARDTOP(HARDTOP OR FRP TOP); Grade: STANDARD TYPE; Fuel Induction: ELECTRIC FUEL INJECTION SYSTEM; Gear Shift Type: MTM, 5-SPEED FLOOR SHIFT; Engine: (1FZFE) 4500CC EFI; Destination: FOR GENERAL COUNTRIES(EXCEPT FOR GCC,ARL,SA) | 09.1999 - 06.2001 | View |
EGR Vacuum Modulator Valve Assembly
This valve assembly is a key piece of the EGR control system on many Toyota engines. It is needed to manage vacuum signals so the EGR valve opens smoothly and only when the engine conditions are correct. By keeping exhaust gas recirculation stable, it helps lower NOx emissions, supports clean combustion, and can improve drivability during light throttle cruising.
How it works ⚙️
The modulator receives engine vacuum and “meters” it using internal diaphragms and calibrated ports. It then sends a controlled vacuum output to the EGR valve. Under load changes, it cushions sudden vacuum spikes, preventing the EGR from snapping open or shut. This steady control reduces hesitation and keeps air-fuel behavior more predictable.
What happens if it fails ❗
If the unit sticks, leaks, or the diaphragm tears, the EGR may open too much or not at all. Too much EGR can cause rough idle, stalling, and weak acceleration. Too little EGR can trigger higher combustion temperatures, pinging/knock, increased emissions, and a check engine light. Vacuum leaks can also create unstable idle and poor fuel economy.
Common symptoms
- Rough idle or stumble on light throttle
- Knocking under load
- Loss of power, higher fuel use
- Emission test failure / warning light
Compatibility ✅
- Toyota Land Cruiser