Question about 1991 Lexus LS 400

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Where is the starter soenoid located on a 1991 Lexus LS400?

My Lexus LS400 is not starting, only clicks when I turn the key. I replaced the alternator a year ago and I know its not the battery. I am trying the simpler things first as I have heard that the starter is a pain to get to...so, I am thinking maybe the starter solenoid or a cable? Does anyone have any ideas? I appreciate your help.

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If the solenoid is clicking when you turn the key its very unlikely to be a relay fault, the relay controls the feed to the exciter wire which must be working for the solenoid to be clicking. If you haven't ruled out the battery completely do so by attaching jump leads, if that makes no difference you ideally need to check for a volt drop between engine and battery earth terminal and also main starter feed to battery positive, (the latter can be a problem with difficult to access starter motors tho.) if all wiring is ok its most likely the motor itself, if you can get to it give it a tap with something and see if it makes any difference. If it starts after a tap then its most likely the starter motor.

Posted on Nov 01, 2017

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SOURCE:

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Posted on Jan 02, 2017

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  • 41 Answers

SOURCE: I have a 1998 Lexus LS400 with a clicking sound

You may have corrosion inside your battery cables or a loose connection somewhere.

If you have a voltmeter connect one lead to the POSITIVE post of the battery and the other to the POSITIVE post on your starter while you have a friend crank the engine
WATCH YOUR HANDS!

This is called a voltage drop test and you should see less than 0.5v on the multimeter while you are trying to start it, if you have high resistance (corrosion bad connections) you will see a higher voltage. 0.5v is the MAX you should see.

Do the same test on the ground side of the circuit, connect to the NEGATIVE battery terminal and the starter case, your voltage reading should be 0.1v or less

Posted on Feb 24, 2009

mkv0525
  • 358 Answers

SOURCE: R & R 1991 Lexus Ls400 Gear shift knob

slide the lower part of shifter handle down and you will find two screws, but there is 2 wires coming in from center console for overdrive button.you have to remove the center console cover and remove the 2 wires from connector and then pull up threw handle.when you go back together you will have to guide them back threw the handle.

Posted on May 21, 2009

MNfisherman
  • 11896 Answers

SOURCE: Replace/fix starter on 1991 Lexus LS400

Not too bad. Not much room, just enough to drop the starter. It is probably easier to go up through exhaust if you can get your exhaust shield off the manifold .

Posted on Aug 07, 2009

  • 2 Answers

SOURCE: 1996 Lexus ES300 replacing starter

the starter is in the wright side of the motor under the cruis controls. remove the black cover and youll see it....

Posted on Nov 12, 2009

Rickygittins
  • 715 Answers

SOURCE: recently replaced starter, car turns over but won't start

Anti-Deterrent ECU:
This is also possibility especially someone else drive your car. This is very common if you lend your car to someone. The symptom of this condition is "No noise or sound at all" when ignition key is turned. If this is faulty, the symptom will be the complete ignition kill. Therefore, you will not heard and clicking sound or engine turning at all. If this is the problem, you can easily reset the Anti-Deterrent by using your key. Stand out side of the car and close all doors. Insert the key into the driver side door and turn the key to clockwise and counterclockwise for three four cycles. Basically, you are lock, unlock for 4 times and this procedure will reset the anti-deterrent ECU. If this happen to you, its quite scary at first, but the solution is very simple.

Posted on Dec 07, 2011

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1 Answer

How do you replace 1995 lexus ls400 alternator?


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Insure the drive belt is turning the alternator properly. When it is wet outside the belt will slip quite a bit more if it is not tensioned properly. Also ....the ground from the battery post to the engine block needs to be checked to insure a great connection. Any resistance in the ground cable OR the positive cable from the alternator to the positive post of the battery will cause your issue....dampness will make these issues worse.
Would check output of alternator when damp/wet outside...and find a tech that KNOWS how to perform a voltage drop test on the battery cables and the alternator output wire that goes back to the battery.

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My 1999 Lexus ES300 wouldn't start this morning. There's no sound when trying to turn over...no clicking are anything. When I listen under the hood there's a slight click in the alternator


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A few days ago my car wouldn't start and just made a clicking sound. So I assumed it was my battery, I got a jump to get home and it took about 2 jumps and then my car died right by my house. I took the...


While your car is running, measure the voltage at your battery terminals. If the alternator is wotking, it should measure over 13 volts, since the battery is really low. On a healthy battey the voltage is around 14.5 volts when the engine is running. If the car is running and you measured 12.6 volts or less, change the alternator. I have actually worked on a lexus ls400 with exact same problem. I had rebuilt the alternator myself to save the customer on parts. Because altenator is not cheap on lexus. There is an ace hardware by my shop where they carried some carbon brush, all you got to do is file it down to fit, and solder them. Of course you have to open the alternator to do that. The brushes cost about a few bucks. You can buy these at auto parts too but not for that particular alternator. Auto parts like to make money and would rather sell you the whole thing. LOL

Jun 29, 2009 | 1991 Lexus LS 400

2 Answers

Recently replaced starter, car turns over but won't start


Anti-Deterrent ECU:
This is also possibility especially someone else drive your car. This is very common if you lend your car to someone. The symptom of this condition is "No noise or sound at all" when ignition key is turned. If this is faulty, the symptom will be the complete ignition kill. Therefore, you will not heard and clicking sound or engine turning at all. If this is the problem, you can easily reset the Anti-Deterrent by using your key. Stand out side of the car and close all doors. Insert the key into the driver side door and turn the key to clockwise and counterclockwise for three four cycles. Basically, you are lock, unlock for 4 times and this procedure will reset the anti-deterrent ECU. If this happen to you, its quite scary at first, but the solution is very simple.

May 05, 2009 | 1991 Lexus LS 400

1 Answer

Will not start by key


bad ground or blown fuse

Aug 30, 2008 | 1990 Lexus LS 400

1 Answer

My 1991 lexus ls400


The most likely problem is your alternator, the alternator charges your battery while the engine is running, if the alternator is bad you have a dead battery, but you can check with a volt meter to ensure that is your problem. Start your car (use a battery charger or jump to start it if you need to) and put your meter on the battery post's. If your reading 13volts or so your alternator is working and maintaing voltage, however if your reading starts dropping to 10 or less(may take a few moments to drop) then it's probably your alternator. You can also check your battery's voltage before starting your vechile, if the voltage increases after you start the vechile then it seem to be charging. Alternators can be repalced somewhat easily, it's only two boltsm however you do have to remove the fan belt, and re-route after installing the new alternator. If you have some expirence working on cars you can do this yourself in your driveway.
Good luck

Here's a start for you, hope this helps

Jul 18, 2008 | 1991 Lexus LS 400

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