Question about Buick LeSabre

Open Question

Heater and ac fan won't work 1999 Chevy S10 4.3L

Changed resistor already..

Posted by Anonymous on


6 Suggested Answers

  • 2 Answers

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

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.

Posted on Jan 02, 2017

  • 64 Answers

SOURCE: 1999 honda accord ac / heater fan control

Hi! The speed control is defective.The terminal 1&2 could either b worn or burnt out.

Posted on Jan 17, 2009

  • 239 Answers

SOURCE: BMW 328i AC Not Cooling

Check the temperature control box.

Posted on Aug 15, 2009

  • 105 Answers

SOURCE: need to replace ac/heater fan resistor

The Blower Motor Resistor is located on the passenger side firewall, not far from your A/C's H-Valve (or expansion valve), going inside of the vehicle. The blower motor resistor has a 4 or 5 way black connector plugged into it and this is the only visible portion of the Resistor you will see. Remove the wiring connector and remove the 2 or 3 screws with an 8 mm or 5/16" socket (8 mm and 5/16" are the same). Once the screws or fasteners are removed, just pull the blower motor resistor out of the firewall and if you look at it, it will have various coils of wire on it, sometimes it will show burnt coils, but you can always check the various coils with an Ohm-meter.

Aside from that, install the new Blower Motor Resistor and Voilà! Your inside Blower Motor should work just fine.

A brief note here, if your fan doesn't work when the fan switch is on High, then it's not the Blower Motor Resistor, but possibly the Blower Motor itself. Should this occur, please get back to me insofar as how to replace the blower motor and why the blower motor's wires have to be twisted...even with the new blower motor fan.

Best of Luck,

"00 Buck"

"Still living on the Right Side of Dirt..."

Posted on Jun 05, 2010

  • 14 Answers

SOURCE: I have a 1999 Jeep TJ. My heater recently stopped

Hello Tom,
This problem can be trouble shot by checking: The fuse. Are you 100% sure it is good? Get a new one unless you are sure. You said you replaced the resistor but still check it again to be sure it did not cook recently. It will appear crusty,melted carbon deposits. If you bought a good NEW heater motor check it again by getting or making some cheap jumper leads and by unplugging the heater connector under the hood, connect one of the leads to the battery then to one of the posts of the heater. Connect the other jumper to to the other post and to the connector on the motor. It should whirl around and scare the heck out of you it you get the polarity right : ) now, onto something more fun and where I think your problem is. Your control panel.... Using a phillips screwdriver, remove the screws from your face plate/facia/dash moulding covering your stereo/climate control panels. Screws located under eye glass basin,in back of cigarette ash bin and below I think. It pops off and exposes the screws to your climate control module. 4 screw/nuts allow you to pull out your climate module box. Check your connections. Most likely, your selector switch is melted. Perhaps even the harness that plugs into it is melted too. Replace the blower selector switch (small screw removes it) with a new one. Autozone carries them. If your wiring is toast, make a drawing of your color wires BEFORE you cut them free (what post on the switch the wire plugged onto by aligning the plug orientation to the post orientation "mated connections") and close to the connector as possible making sure the wire is good. Get some heavier gauge wiring and splice in and solder neat and strong extensions onto the cut wires. While you are at your auto store, pick up the appropriate female plug in connectors to fit over the blower speed selector pins. Solder these onto your extensions as well and liquid tape all bare wiring. Plug them onto the correct plug to the blower motor switch. YOUR VERY DETAILED DRAWING that you made. When I did this, I made my wire extensions about 8 inches long so I had plenty of room to solder and work. Check your connections,tape them to avoid shorts and use liquid tape on the blower speed connections if there is bare wire. Turn your vehicle on run through your selector speeds. You should also replace your RELAY. It is located on psngr side under glove box. Buy a good one. Replace this even if it appears to be working as they can get worn and as your motor gets worn, allow extra juice to backfeed and kill your heater components again. I hope this helps. If all of this fails your wiring harness may be cooked but I think this is your blower speed selector switch. I will be on here to check on you the next few days to see if you need any more help. Let me know how things turned out so I can help you more if needed. This is a very common problem with this model. Take care.

Posted on Jan 11, 2011

  • 239 Answers

SOURCE: 1999 Chrysler 300m heater won't get hot fan

Is there enough anti-freeze in the system?
If so perhaps the system needs bleeding.
On the front of the engine, on top near the big upper hose goose neck and nestled between the runners of the intake manifold is a small nipple that looks like a brake bleeder (10MM). This is a cooling system bleeder, a close cousin to the brake bleeder. When opened it will purge the system of air- likely the culpret you are experiencing. on a cold or just warm engine, this can be slightly opened with a wrench and the air can be "Burped" out. Attach a 1/4" clear hose to the nipple and open the bleeder until you see all the air has left the manifold. (Run the hose into a bucket and dispose of the used anti-freeze properly.)
if that doesn't do it, maybe the thermostat is stuck in the open position. Replace it with a cold engine and use a new gasket each time.
If all else fails, the heater core may be plugged.

Posted on Nov 30, 2011

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Speedometer, cruise light , ac/heater control doesn't work

Sounds like someone needs to do some more troubleshooting first. Changing the cluster is not a simple matter since your mileage will be different. And the cluster is on a different circuit that the ac so one should not affect the other.

Jun 27, 2013 | 2002 Chevrolet Impala

1 Answer

Fan won't work on ac in 2002 chevy s10 truck

Check for any relay or fuse or seized fan.

Sep 10, 2012 | 2002 Chevrolet S-10

1 Answer

Where is heater relay switch on 2003 chevy avalance

This may be the same problem already posted. If the fan doesn't work, a LIKELY problem is the thermal fuse on the fan speed resistor has opened. You can either replace the whole resistor which is in the air plenum to be cooled by airflow, or you can replace the thermal safety fuse on the resistor that is a two lead device suspended on two protrusions above the resistor. Search Gooogle for 2003 chevy avalance heater resistor for photos of the device.

May 11, 2012 | Cars & Trucks

1 Answer

Heater won't blow

Check your blower motor resistor connection.Turn switch and fan on then wiggle the resistor pigtail fan should turn on if not replace resistor.These get to hot and usally melt the pigtail and loose their connection.

Jan 13, 2012 | 1998 GMC Savana

1 Answer

I have a 1999 camry. The fan only works on high. On high it works well so it's not a motor issue. I've checked the fuses and they are good. Any thoughts?

It sounds like the resistor block for your heater/AC fan has gone bad. Here's a link to a few I found on line for the 1999 camry to give you an idea of the cost. When the resistor block goes bad the motor defaults to its highest setting.

A local autoparts store like autozone should also carry this part. They will also probably be able to give you some advice about how to install it.

I hope this helps you out.

Oct 09, 2011 | 1999 Toyota Camry

2 Answers

Ac fan switch won't turn on fan motor, was at one point just not turning on position 4 but now none will activate the fan motor

This is very common, this sounds like the blower resistor went bad, the blower resistor is what controls the fan speeds, the is located on the heater box next to the blowermotor, its held in with two screws and slides into heater box, lets see if i can send you a photo of the blower resistor to help you locate it.johnjohn2_107.jpg

Jun 14, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

99 ford escort no fan for heat/ac

TYhis is normally due to the resistor pack controlling the fan

May 23, 2010 | 1999 Ford Escort

1 Answer

Fan quit on 87 celebrity, heat ac, etc.. fuse ok ????

Check for bad connection at heater resistor or try tapping heater motor lightly
with ignition switch on and heater switch on. Could be heater switch connection.

Apr 01, 2009 | 1987 Chevrolet Celebrity

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

62 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

76132 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides