Question about Air Conditioning and Heat for Lexus Ls 430

1 Answer

I have a Lexus LS430 with 125k miles. Heat sometimes works then blow cold air. Sometimes it blow cold air then heat, then back to cold. What do I need to look at?

Posted by Anonymous on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Cheetah:

    An expert who has answered 20 or more questions within one hour.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

  • Expert
  • 107 Answers

Vacuum lines. Vents are vacuum actuated

Posted on Oct 09, 2014

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Diesel cabin heat assist(webasto)sometimes work and sometimes not, although the temperature is about 2 degrees.I also have a problem with the heating (passenger side blows cold air and the driver side...


I find the Diesel Cabin Heater will not operate if you have less than 100-120 miles of fuel left in the tank. Next time it doesn't work look at the miles left in the tank if if it is below this figure then top up and you will probably find it working again.

Nov 26, 2013 | 2004 Chrysler Voyager

1 Answer

I have a 1992 Lexus 400 sc and the heat blows cold,It blows fine but only blows cold. The car is in good condition, over 200,000 miles. I drove it from California last year so I never knew about the heat...


see if the feed pipes are hot ,if so then its a fault with the operating flap control ,1992 it could be a cable and not vacumn ,just cannot remember all the cars i work on sorry

Dec 24, 2010 | 1992 Lexus Sc 400

1 Answer

1998 S10 heat wont work sometimes


When you say the heat doesn't work are you meaning the fan doesn't blow out hot air or just doesn't blow out any air? if it blows cold air sometimes when you have the heat on then it could be poor circulation through your radiator or a weak water pump. make sure your radiator is clean on the inside, not too corroded or nasty inside. You can buy a radiator flush thing from wal-mart or any auto parts store. See if it helps.

Mar 01, 2009 | 1998 Chevrolet S-10 Pickup

1 Answer

Heat pump blows heat half the time and cold half the time


It sounds like it is just going into the defrost cycle. Go outside and see if it is iced up. If it is, it reverses itself to melt the ice. Heat strips should come on if unit has them

Dec 03, 2008 | Heating & Cooling

1 Answer

Heater blows cold air


With the car warmed up,feel the heater hoses,are they both warm/hot near the firewall in the engine compartment?If they are both warm/hot,then the heater core should have circulation through it and it may be a "blend door" issue in the heater a/c assembly.If they are not warm/hot then the heater core could be dirty and plugged up and needs to be flushed.
If the above does not help,a drain and vacuum of the cooling system and vacuum refill will remove any trapped air.
Sometimes,clamping off the top rad hose and holding the engine rpm at 2000 rpm will force trapped air out of the heater core.(Watch temp gauge when trying this)
Lastly,a NEW thermostat doesn't mean its working correctly.

May 18, 2017 | 2005 Lexus SC300

2 Answers

Delayed or intermittent heat


after checking the heater core hoses they were both hot I went in to look at the blend door and noticed it wasn't moving on hot or cold so I simply disconnected the lincage and moved to hot and its working ok. but its not completely repaired

Oct 27, 2008 | 2003 Jeep Liberty

Not finding what you are looking for?
Air Conditioning and Heat for Lexus Ls 430 Logo

Related Topics:

184 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lexus Vehicle Parts & Accessories Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Hugh Mckernan
Hugh Mckernan

Level 1 Expert

47 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

14406 Answers

Are you a Lexus Vehicle Part and Accessory Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...