Problem Reports
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1990 Toyota Land Cruiser Problems
Check Engine Light Due to Restricted EGR System
The EGR System tends to get restricted or blocked with carbon after 100,000- 125,000 miles which will cause an emissions test failure for NOX. If the EGR system is equipped with an EGR temperature sensor it will trigger a Check Engine Light for improper EGR flow. The repair is to clean out the EGR passages and the EGR Temperature sensor. Our technicians tell this repair is pretty straight forward and takes about 1-1.5 hours. It is also wise to verify the EGR system components i.e. the Transducer, EGR Valve and VSV Solenoid at this time.
Engine Won't Crank Due To Starter
If the vehicle will not crank over, the most common problem is the starter, which tend to fail at about 100,00-125,000 miles. Sometimes it is only the starter solenoid contacts, but often the complete starter (including solenoid) needs to be replaced.
Input Shaft Seal to the Steering Gear May Leak
At higher mileages (125,000-150,000) the input shaft seal to the power steering gear may leak. It is recommended to replace the steering gear with a quality rebuilt or new unit rather than attempt to re-seal the original unit.
Service AC system at 150,000 miles or every two to three years
Usually by 150,000 miles the AC system will need some attention, especially in climates where it is used often. Our technicians tell us that it is best to service the AC system every 2-3 years. This keeps the moisture in the system at a minimum which extends the life of the components.
Replace Oxygen Sensor When Servicing EGR System
Over the time the exhaust gas recirculation (EGR) system may become plugged with debris, the oxygen sensor may also be getting slow or 'lazy' around this time. When servicing or cleaning the EGR system, it is a good idea to replace the oxygen sensor because it works in tandem with the EGR system.
Front Brake Rotor Wear Can Cause Pulsations
Front brake rotors can wear causing a pulsation felt in the brake pedal. Our technicians tell us this condition is best corrected by replacement of the front rotors and brake pads.
Power Steering Leak
At higher mileages (125,000 -150,000) the power steering pump may begin to leak on the 6 cylinder vehicles and could require replacement.
Automatic Transmission May Not Shift Correctly at High Mileages
At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to be replaced. Typically the transmission does not need to be completely overhauled.
Regularly check valve clearance so valves don't become too tight
It is important to regularly check the valve clearance as the exhaust valves may become too tight. This will lead to valve failures, which are expensive to repair.
Replace ignition key by 100,000 miles
Replace coolant and thermostat every 60,000 miles
Our technicians tell us that it is important to change the coolant with factory coolant and replace the thermostat every 60,000 miles. The will help protect the head gasket, otherwise the head gasket can deteriorate and be stressed to the point of failure.
Bleed rear level sensor for correct rear brake operation
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