How often do I have to replace the blower motor on my Grand Prix?
Since I purchased my Grand Prix, which had 39,000 miles on it at the time, I’ve had nothing but problems with the blower for the air conditioning, heat, and windshield defroster. Every twelve to eighteen months, I have to replace either the blower motor, blower motor relay, or blower motor resistor.
What should I do if my blower motor is not working?
If it’s good, refer to a wiring diagram for your vehicle and conduct these tests: Disconnect the electrical connector at the blower motor and jumper power and ground to the motor, bypassing all the speeds controls.
Why does my blower not work at high speeds?
Blower works on slow speeds, but not on high speed. Check for bad fuse or bad high speed relay. Swap the high speed relay with another relay with the same part number. Also, check the fuse for the control side of the high speed relay. Make sure the ground side of the high speed relay is working. Blower works on some speeds but not others
What should I do about my GM heater motor?
The GM people you contacted should have told you. The fix is to install a capacitor that will prevent voltage surges from confusing the blower control module. Heater Blower Motor: I Have a 2005 Gran Prix. the Blower Motor Won…
If it’s good, refer to a wiring diagram for your vehicle and conduct these tests: Disconnect the electrical connector at the blower motor and jumper power and ground to the motor, bypassing all the speeds controls.
Blower works on slow speeds, but not on high speed. Check for bad fuse or bad high speed relay. Swap the high speed relay with another relay with the same part number. Also, check the fuse for the control side of the high speed relay. Make sure the ground side of the high speed relay is working. Blower works on some speeds but not others
How does a blower motor work in a car?
Carmakers use these three common wiring methods to supply power and ground to the blower motor in a manual system using a blower motor resistor. In one design, the car maker supplies battery power to the speed switch, which switches the power to the appropriate connection on the blower motor resistor.
How does a motor resistor affect the blower motor?
In those applications, the motor resistor reduces power for the slower speeds and the blower motor has a permanent ground connection to complete the circuit. See the wiring diagram for that setup below.
What’s the best way to remove a blower motor?
Take your pliers and apply pressure on the hose while turning counterclockwise to break the seal. Remove the blower motor mounting screws using a Philip screwdriver. Remove the blower motor. Reverse the procedure to install a new blower motor. Make sure your engine is completely cooled before beginning this procedure.
What does a blower motor do in a car?
A blower motor distributes heating and air-conditioning coolant through your vehicle’s entire coolant system. The blower motor is an essential component for the distribution of your vehicle’s heating and air conditioning.
Why does my Pontiac Grand Prix GT fan keep blowing?
I have a 2001 Pontiac Grand Prix GT and my fan will not shut off. It will continue to blow constantly even with the car turned off. I have to unhook the battery to get it to shut down. I recently put in a new battery and it worked fine for about a day. Any ideas? :confuse: i have a 05 grand prix gt.
What was the problem with my Pontiac Grand Prix heater?
Similar Problems with 2007 Pontiac Grand Prix Heater / AC. This past summer the A/C worked but sporadically it would act like the blower was not working and shut off then come back on when it was 113 degrees outside. Then this fall it acted like no heat when I first tried the heater.
What’s the problem with my 97 Grand Prix GT?
I have an issue with the AC/heater fan that seems a little different from the other threads here. I have a 97 Grand Prix GT without climate control. No matter what settings I put the fan on, I get nothing more than just a trickle of air out of all the vents (defog, head, feet).
Since I purchased my Grand Prix, which had 39,000 miles on it at the time, I’ve had nothing but problems with the blower for the air conditioning, heat, and windshield defroster. Every twelve to eighteen months, I have to replace either the blower motor, blower motor relay, or blower motor resistor.
I have a 2001 Pontiac Grand Prix GT and my fan will not shut off. It will continue to blow constantly even with the car turned off. I have to unhook the battery to get it to shut down. I recently put in a new battery and it worked fine for about a day. Any ideas? :confuse: i have a 05 grand prix gt.
Similar Problems with 2007 Pontiac Grand Prix Heater / AC. This past summer the A/C worked but sporadically it would act like the blower was not working and shut off then come back on when it was 113 degrees outside. Then this fall it acted like no heat when I first tried the heater.
I have an issue with the AC/heater fan that seems a little different from the other threads here. I have a 97 Grand Prix GT without climate control. No matter what settings I put the fan on, I get nothing more than just a trickle of air out of all the vents (defog, head, feet).
Why does my car blower not shut off?
The blower motor wont shut off unless i pull the main fuse even with the engine off and the key out.. I think its the blower… (note that without the fix, some blowers will run continuously, some will run intermittently, and some won’t run at all. You evidently have the latter problem.)
When to replace windshield wiper motor and blower motor resistor?
However, two months ago when I went to the dealership to have it looked at, before I replaced the the blower motor and blower motor resistor, they said they checked the windshield wiper motor and that wasn’t the problem. What should I do or look for? Should I go ahead and replace the blower motor relay again since that part is two years old?
What should I do about my heater blower motor?
The fix is to install a capacitor that will prevent voltage surges from confusing the blower control module. Heater Blower Motor: I Have a 2005 Gran Prix. the Blower Motor Won…
How do you change a blower fuse on a Grand Prix?
The blower motor depends on a properly functioning 15-amp fuse to regulate the power flow that controls the blower motor speed. Buy a variety of fuses to keep on hand, and replace a blown fuse yourself in minutes. Sit in the passenger seat of your Grand Prix with the car turned off and the ignition key removed.
What to do if your GM blower motor is not working?
If that doesn’t work, follow the steps on page one of the instructions to completely remove the blower motor. Note: use a 5.5mm socket to remove the three screws. Note 2: Remove the rubber air tube by pinching and pulling out.
The blower motor depends on a properly functioning 15-amp fuse to regulate the power flow that controls the blower motor speed. Buy a variety of fuses to keep on hand, and replace a blown fuse yourself in minutes. Sit in the passenger seat of your Grand Prix with the car turned off and the ignition key removed.
The GM people you contacted should have told you. The fix is to install a capacitor that will prevent voltage surges from confusing the blower control module. Heater Blower Motor: I Have a 2005 Gran Prix. the Blower Motor Won…
How to change a heater relay on a Pontiac Grand Prix?
Sit in the passenger seat of your Grand Prix with the car turned off and the ignition key removed. Open the glove compartment and locate the bin on the side of the glove box. Pull the cover from the bin to expose the fuse panel inside the glove compartment.
Why does my GM blower motor resistor keep failing?
In some cases, the heat is so high that it melts the connector. This is common on late model GM vehicles. If you discover a melted connector, do NOT attempt repair. Purchase an upgraded pigtail and splice it into the harness along with a new blower motor resistor.
Where does the power go in a blower motor?
For each higher speed, power flows through one less resistor. Some car makers run blower motor power through the fan speed switch first, then through the blower motor resistor and then to the blower motor and ground. Other car makers reverse that and run power to the blower motor first and terminate ground at the blower fan speed switch.
What are the symptoms of a bad heater motor resistor?
Symptoms of a Bad or Failing Heater Blower Motor Resistor. 1 1. Blower motor stuck on one speed. A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting. The blower 2 2. Blower motor does not work on certain settings. 3 3. No air from the vehicle’s vents.
Why is my blower motor stuck on one speed?
Blower motor stuck on one speed A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting. The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed.
What happens when a blower motor resistor fails?
The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed.
How often do you have to replace a blower motor?
Every twelve to eighteen months, I have to replace either the blower motor, blower motor relay, or blower motor resistor. I just replaced the blower motor and blower motor resistor two months ago, and yesterday, the blower stopped working again. I checked the fuse, and it was fine. I replaced the blower motor relay about two years ago.
What are the symptoms of a bad blower motor resistor?
Another common symptom of a faulty blower motor resistor is a a blower motor that does not function on certain settings. If the blower motor resistors’ internal components fail it may cause the blower motor to malfunction, or not function at all on one or more of the settings.
Blower motor stuck on one speed A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting. The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed.
Another common symptom of a faulty blower motor resistor is a a blower motor that does not function on certain settings. If the blower motor resistors’ internal components fail it may cause the blower motor to malfunction, or not function at all on one or more of the settings.
What causes a bad or failing blower motor relay?
Blown fuses. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current…
What happens if a heater blower has no power?
A blower motor without power will not be able to produce any air pressure, and as a result the heating and air conditioning system will be left with no air coming from the vents.
Every twelve to eighteen months, I have to replace either the blower motor, blower motor relay, or blower motor resistor. I just replaced the blower motor and blower motor resistor two months ago, and yesterday, the blower stopped working again. I checked the fuse, and it was fine. I replaced the blower motor relay about two years ago.
The blower motor wont shut off unless i pull the main fuse even with the engine off and the key out.. I think its the blower… (note that without the fix, some blowers will run continuously, some will run intermittently, and some won’t run at all. You evidently have the latter problem.)
What are the symptoms of a bad blower motor relay?
3. Melted relay. Another more serious symptom of a problem with the blower motor relay is a burned or melted relay. Relays are exposed to high current loads and can sometimes get hot when they develop problems.