Showing articles & questions for topic
LS400

Related questions

Question
I have replaced radiator watepump ect still running hot
If you did not replace the thermostat then you should replace it and then refill the system after bleeding out all the air in the system. Check to make sure the fans come on when the temperature goes up. If...
Question
Will bad brake calipers cause excessive vibrating in steering wheel while driving?
This may very well be caused by the uneven wear on the front tires. When uneven tread is subjected to various road conditions or braking power, this will definitely cause a vibrating or shaking feeling. This may also be caused...
Question
ENGINE OVER HEATING
It sounds like you may have a defective thermostat if you haven't checked it yet. If it still overheats after fixing the thermostat then check the radiator next. Make sure the radiator flows in all of the fluid properly. Lastly,...
Question
I belive its my alternator put 3brand new batteries in the car and still want start
Hey thanks for writing in about your 1990 Lexus LS400. A no crank condition such as this will not be the alternator. You either have a bad starter or a bad connection. The most effective tool to diagnose this condition...
Question
Car not moving when pressing the gas pedal
The first thing to check would be the shifter cable and adjustment, and check the computer for transmission codes, especially range sensor codes. If the computer does not know the car is in “drive”, it will not activate the proper...
Question
The engine ticking on a '95 Lexus LS 400
The first thing you'd want to do is get someone to check the valve lash--it may need the valves adjusted. Those things have pretty bullet-proof engines but they do have the valve adjustments on them that are little, stainless steel...
Question
Need to no how to bypass lamp failure sensor for tail & brake lights to work
Hello. Bypassing the lamp failure sensor involves locating the correct signal and ground wires and splicing them together to bypass the circuit. The actual cutting and splicing process is rather simple, however, you must make sure that the correct wires...
Question
What would be a price estimate of replacing a timing belt but not the the component kit?
The timing belt on your vehicle is recommended to be changed every 60,000-90,000 miles. If a timing belt fails, the engine will stop running, and you may damage the engine. To get an idea of the cost involved to replace...
Question
When completely stopping, jolt from ABS locking
If you are having the ABS engage when you are slowing, then the speed sensor for one of the wheels is not reading correctly and is in need of replacing; the bearing that got replaced is going to be the...
Question
Car keeps dying
There are usually two different issues that cause the engine to stall or reduce RPM in situations like this. The first thing I'd look at is the idle control valve or sensors that monitor the fuel system. The second item...
Question
How to reset worn brake indicator
You will have to replace the brake pad sensors when you replace the worn out brake pads. The light will then will go out on its own. If the light does not go out, then you have a short in...
Question
Trouble starting car after sitting for 2 hours
You may be having a problem with one of the battery cables or connections. A mechanic can do what is called is a voltage drop test on the starter and all the cables to see if one or more cables...
Question
Accelerating doesn't produce increase in RPM
The throttle opening is controlled by the engine computer and if the computer sees a problem in the system it will limit the throttle opening. You need to have the computer tested to see the codes that can cause this....
Question
Noise in power steering and wheel difficult to handle
The power steering is not giving enough pressure from a leak or a defective pump or rack and pinion, depending on if whether it is leaking. If the pump works better when warm, then you may need to have the...
Question
My car won't start no crank the lights and everything r good battery good changed the starter relay and a couple other fuses.
Hi there. It sounds like the starter may have failed. Many times when a starter fails, it gives no warning or signs leading up to the failure. Make sure the battery and alternator is healthy with proper testing, not a...
Question
My check engine light came on and my car was diagnosed as needing a catalytic converter. Now, my car won't start.
Hello, thank you for writing in. The catalytic converter can cause a vehicle not to start. This would be an extreme situation where part of the catalyst inside has broken off and is clogging the entire exhaust pipe. Tap on...
Question
Replaced the radiator but now my can is running hot. Never had this problem until the radiator was replaced
There area number of things that can make your car run hot such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know, the coolant fan switch helps to maintain the proper coolant...
Question
How to take air out of cooling system Lexus ls400 1997?
Hi there. First check the cooling system for the right amount of coolant and top it off if its low. Then run the cooling system until the engine is hot at operating temperature. Shut off the engine and let it...
Question
Electrical problems
Hello. The voltage regulator is the component that adjusts and maintains the electrical system's output, making sure that there is enough power generated to meet the system's requirements. When it fails or has an issue it can cause symptoms similar...
Question
I have removed the alternator, and did not remove the fan clutch or radiator. The belt tensioner on my 1997 Lexus LS400 does not
Hi there. The belt tensioner that you want to replace requires removal of the alternator and timing covers. These components overlap onto the tensioner. Caution is needed as I'm sure this vehicle has brittle plastic pieces and wiring harnesses. If...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question