Question about 1997 Pontiac Sunfire

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A/c blower does not work. I allready put a new blower in it, and i've checked the fuses inside the vehicle. The blower was working, but it just stoped.

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You may have a bad blower speed resistor. This is what gives you the low/med/high speeds and they sometimes fail causing a loss of some or all of the speeds.

Posted on Jun 02, 2010

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Posted on Jan 02, 2017

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Put in a new blower motor and resistor in my 99 GMC Jimmy and still have nothing I need help


Did you check the right fuse ,not all just the blower motor fuse .An did you check for B+ voltage at the fuse ? Here is a video on testing blower motor circuit .

Oct 02, 2016 | GMC Cars & Trucks

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I hooked the battery post up backwards an it caused all sorts of things to happen the one I need help with is when I go to turn on my heater/AC none of it works at all it don't blow or anything..


It's amazing the car even runs. Reverse polarity on a car battery will usually fry the ECU, which is the computer that runs everything from the engine timing to smog control. Consider yourself lucky.
You must have had the Blower motor in the On position and tried to start the car after the battery hookup.
First start at the fuse for the Blower motor, which may be under the drivers side dash or in the engine compartment. (you did not specify the vehicle make)
If the fuse is OK, then the relay may be fried. relays are usually under the hood inside the big fuse/relay box. Look at the fuse/relay legend (map) inside the cover and locate the relay for the Blower motor. It may just have a 'fan blade' symbol. Exchange it for a relay of the same type and style in the same box. Put the 'new' relay in the blower motor socket. Turn the key to the 'On' position (just before 'Start') and test the blower motor. Turn the key off. If it worked, take the bad relay to a car parts store and buy a new one. It'll cost between $10 and $50. I know, doesn't seem worth it.
If that doesn't fix it, return the relays to their original position and go to the parts store and buy a repair manual for your year, make and model. Locate the section on Heat/AC and replace the Blower Motor Resistor. That's probably the culprit. Short of that, take it to the dealer or a good repair shop, that you trust. It can be an involved repair job.

Jul 05, 2014 | Cars & Trucks

2 Answers

Heater fan not working


Smack it and see if it comes on. If it does then the motor brushes are bad. If it does not come on, check the fuses. If the fuses are ok, check the voltage on the plug to the motor.

Feb 06, 2014 | 2001 Dodge Durango

1 Answer

Impala blower fuse


Hi Victor, I'm glad to help!
First Victor, let's make sure its not the blower motor. Run power and ground from the battery to the blower motor and see if it works, if it doesn't replace the motor. If it does work. NOTE: Most vehicles, when the blower motor quits works its because the blower resister is bad. The fuse that powers the motor is usually a 30 amp fuse, on some vehicles its under the hood on others its in the fuse box inside the vehicle. Before going through all this first check power and ground at the blower motor connector to see if your loosing POWER or GROUND. Because you need to know which one your loosing. BUT, if I were working on it and knowing what I know about blower motors not working I'd replace the BLOWER RESISTER first. Hope this helps and have an awesome day Vivtor.

Jan 09, 2014 | Cars & Trucks

1 Answer

My turns signals and Heater blower just went out completely - Cabin fuses look OK - Suspect fusible link in engine compartment fuse box


Its faulty blower motor resistor. The low and medium speed on blower motor is controlled by resistor and its actual speed is high. So because resistor is not working, blower motors actual speed which is high is working.


It can be faulty blower motor or faulty blower motor resistor. Get the blower motor inspected. If it's faulty it has to be replaced.


=======

For blower motor testing and replacing, check the link below: ----

Blower motor Testing/replacing for all vehicles?

http://repairhelpcenter.blogspot.in/2012/02/blower-motor-replacing-for-all-vehicles.html

------------

These will help.

Thanks.

Dec 14, 2012 | 1992 Nissan Sentra 4 Door

1 Answer

I don't have signal lights, my heater blower inside of vehicle don't work checked all my fuses they were good and tried top set the computer


sounds like it could be a bad flasher and for the fan there is a fan relay i would suggest checkin that out

Dec 07, 2012 | 1994 Ford Explorer Limited

1 Answer

1995 Isuzu p/u truck keeps blowing out the 20 amp fuse on the heater.


sound's like a earthing problem , try a continuity test from blower LIVE to chassis , if get continuity then def got a wiring problem , very difficult to diagnose without seeing vehicle , get a auto electrician

Jun 11, 2017 | 1995 Isuzu Pickup

1 Answer

Location of 2003 Honda accord blower motor


Check to see if u have power & ground to the blower with the fan on.if so u need A blower mtr

Aug 13, 2017 | 2003 Honda Accord

1 Answer

Heater fan not working


The three most common problems for heater fans are
  1. Burned-out blower motor resistor. This is usually located on the engine side of the firewall. Sometimes one section of the resistor is burned out but others are still good, so the blower only works on the highest speed settings. If you have a burned-out resistor, check the blower bearings to make sure they are not stiff and causing the motor to draw too much current.
  2. The blower is actually working, but either the intake vent is plugged (I've seen vehicles with the heater core completely blocked by dirt, leaves and insects that came in through the vent), or the heater door is stuck closed.
  3. The motor bearings have gone bad (see # 1). This can cause the fuse to blow, although the resistor usually fries first.
I'm not sure how your car's cabin environmental control system is fused. Check any fuse that might apply, such as Vent/AC, HTR, FAN, etc. Generally you can identify the state of a blade-type fuse by inspection without removing it. If you have a blown fuse, check the blower motor before wasting money on a new fuse that will probably blow. Like any fan, it's supposed to turn easily, and there should not be any roughness or side-slop in the bearings.

Nov 14, 2011 | 2004 Renault 181

2 Answers

I have a 2000 dodge stratus. the heat/ac blower was only working on high. i replaced the resistor and that solved the problem for a very short time and now only works on high again. what would cause the...


Thermal fuse, mike (from above) was correct. I did as instructed, and now my ac works on any level. And it actually feels alittle cooler. All you do is go to radio shack and get a thermal fuse, mine was 435 degress f,236 celcius. It cost a total of $1.94. i removed the cover below my glove box, unscrewed the blower resistor, removed the old fuse with a drill bit (it was soldered), and soldered the new one on and reverse the steps on putting it back together. it worked!

May 01, 2011 | 2000 Dodge Stratus

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