Two
The 1991 Lexus ls400 has a timing belt.
The key battery for the ls400 is PN# br1216 www.lextechautomotivellc.com
One
bottomof dash drivers side
probably mph or kph
4
1991 Lexus ls400 hard steering at ilde rack &pump have been replace all screencleaned or removed.
There are many different reasons this could happen. I have heard causes from clogged catalytic converters to bad MAF sensors so I wouldn't even guess. The LS400 is a complicated car which means you need a car-specific board. I use lexusownersclub.com for detailed Lexus information. I will vouch for the quality of the technical expertise and the quality of the people. vbd
Yes.
Yes these are the same from 90 to 94 models www.lextechautomotivellc.com
In the 1991 Lexus LS400, the amplifier (amp) is located in the trunk, specifically on the left side behind the trunk liner. Accessing it may require removing some trim or panels. This amplifier is part of the vehicle's premium sound system, enhancing audio output for a better listening experience.
Walk outside, get down and look under the vehicle and count them.