Question about 1990 Lexus LS 400

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No heat at idle 91 lexus 400 - 1990 Lexus LS 400

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 16 Answers

SOURCE: 91 lexus ls 400 rear suspension

1992 Toyota Avalons are simuliar in design. The Y-Yard may have componiants to repair the parts needed. Go to Y-Yard.com the have a directory to look up parts.

Posted on May 28, 2008

  • 1 Answer

SOURCE: 91 LEXUS LS 400 UNABLE TO LOCATE AMP

its in the trunk on my car next to the power ant mount left side.

Posted on Sep 10, 2008

mkv0525
  • 358 Answers

SOURCE: one side of my sunroof is off track how do i fix

you will have to get the cables replaced.

Posted on Jun 10, 2009

Mustgo
  • 2359 Answers

SOURCE: my 1992 lexus ls 400 keeps stalling and idleis very low

Look for a small electric motor near the accelerator cable and near the top of the valve cover.

It's call IDLE AIR CONTROL (IAC) motor.

It's job is to increase the idle when load is added.
Example: turning on headlight,turning on AC.

Testing it is simple.

Warm up you car for 10 minutes.

Locate the IAC motor

turn on loads.....AC,headlights,etc


The motor should move the idle up


If the motor does not increase the RPM then it can be stick.

Try to give it few gentle taps to free up the gears.

It can be clean if your are up to it.


This electrical motor is very expensive. Please handle it with care.

====

The other trouble spot are

old accelerator cable

TPS Throttle position sensor

====

I will do a simple tune up and gas treatment before starting to replace any parts.


Please post reply on the comment window.


Posted on Oct 27, 2009

  • 14036 Answers

SOURCE: how to change waterpump on

DRAIN COOLANT SYSTEM.DISCONNECT THE RADIATOR INLET HOSE FROM INLET PIPE. REMOVE THE TIMING BELT FROM THE WATER PUMP PULLEY. REMOVE THE RIGHT SIDE IGNITION COIL.REMOVE THE WATER INLET HOUSING AND THERMOSTAT.REMOVE THE MOUNTING BOLTS AND STUDS. LIFT OUT THE WATER PUMP BY CAREFULLY PRYING BETWEEN THE PUMP AND THE CYLINDER HEAD. REMOVE ALL THE OLD PACKING AND CLEAN THE MOUNTING SURFACES. INSTALL NEW SEAL PACKING TO THE WATER PUMP GROOVE AND A NEW O - RING TO THE WATER BYPASS PIPE.INSTALL THE TIMING BELT AND CONNECT THE INLET HOSE TO THE INLET PIPE.THEN REFILL THE COOLING SYSTEM. RUN THE ENGINE CHECK FOR LEAKS.

Posted on Sep 03, 2011

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1992 Toyota Avalons are simuliar in design. The Y-Yard may have componiants to repair the parts needed. Go to Y-Yard.com the have a directory to look up parts.

May 28, 2008 | 1991 Lexus LS 400

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