1991 LEXUS LS400 Electrical System Problems
1 NHTSA complaint on file
Electrical System Issues in the 1991 LEXUS LS400
1 electrical system complaint has been filed with NHTSA for the 1991 LEXUS LS400. Of these, 0 involved a crash, 0 involved a fire, and 0 resulted in injury.
1
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
All Electrical System Complaints
ITS WELL KNOWN THAT THE POWER STEERING/ALTERNATOR SETUP ON THE 1990-1994 LEXUS LS400S ARE POORLY DESIGNED. THE POWER STEERING PUMPS ARE KNOWN TO SPRING LEAKS. THEY ARE LOCATED DIRECTLY OVER THE ALTERNATOR CHARGING SYSTEM AND THE LEAKING FLUID SHORTS OUT THE ALTERNATOR, LEADING TO FAILURE. I HAVE HAD TWO OF THESE AND BOTH WERE LEAKING AND AFTER RESEARCHING, ITS HARD TO FIND A 1990-94 LS400 ON THE ROAD THAT DOES NOT HAVE A LEAKING POWER STEERING PUMP. THE PUMP SEALS SHOULD HAVE BEEN BETTER MANUFACTURED, PLACED IN A DIFFERENT CONFIGURATION, OR A "ALTERNATOR GUARD" PLACED OVER THE ALTERNATOR TO KEEP THE FLUID FROM SEEPING INTO THE ALTERNATOR CAUSING THE PREMATURE FAILURE. I HAVE SEEN A COUPLE OF THESE WITH FIRES IN THIS AREA AND CAN UNDERSTAND IT BEING A POSSIBILITY WITH THE POWER STEERING OIL LEAKING DOWN INTO THE ALTERNATOR. SO, NOT ONLY DO THE PUMPS LEAK EXTERNALLY (THEY ALSO...
Other 1991 LEXUS LS400 Problem Areas
Service Brakes Hydraulicantilocktraction Controlelectronic Limited Slip
3 complaints
Unknown Or Other
3 complaints
Air Bagsfrontal
2 complaints
Engine And Engine Coolingenginegasoline
2 complaints
Vehicle Speed Control
2 complaints
Wheels
2 complaints
Air Bags
1 complaint
Fuelpropulsion System
1 complaint
Parking Brakeconventional
1 complaint
Seat Belts
1 complaint
Service Brakes Hydraulic
1 complaint
Service Brakes Hydraulicfoundation Components
1 complaint
Service Brakes Hydraulicfoundation Componentshoses Linespiping And Fittings
1 complaint
Steering
1 complaint
Steeringlinkagestie Rod Assembly
1 complaint
Structurebodydoor
1 complaint
Tires
1 complaint
Tirestreadbelt
1 complaint