Why does my GM car heater not shut off?
In some cases in cold weather the blower motor may not run, or if it does, it may not shut off when you turn off the vehicle. The TSB applies to the following vehicles with automatic temperature control: GM has identified the blower motor control module as the cause for the failure.
Is the heater on my GMC Sierra still working?
From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I have a 2003 GMC Sierra and just today when I shut my vehicle off I noticed the heater was still moving air.
Why does my car blower motor not shut off?
If you have a vehicle with climate control system and a variable speed blower motor and the blower motor won’t shut off and stays on HIGH with the car turned off and the key out, chances are the blower motor motor control processor is toast or the HVAC control module is damaged.
What to do if your heater won’t stop running?
To fix the problem, replace the blower motor control module. Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. They include wiring diagrams and technical service bulletins. In most cases, their diagrams are right from the factory manuals. Which one should YOU choose?
In some cases in cold weather the blower motor may not run, or if it does, it may not shut off when you turn off the vehicle. The TSB applies to the following vehicles with automatic temperature control: GM has identified the blower motor control module as the cause for the failure.
From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I have a 2003 GMC Sierra and just today when I shut my vehicle off I noticed the heater was still moving air.
If you have a vehicle with climate control system and a variable speed blower motor and the blower motor won’t shut off and stays on HIGH with the car turned off and the key out, chances are the blower motor motor control processor is toast or the HVAC control module is damaged.
To fix the problem, replace the blower motor control module. Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. They include wiring diagrams and technical service bulletins. In most cases, their diagrams are right from the factory manuals. Which one should YOU choose?
Why does my Chevy Silverado blower not turn off?
This 2004 Chevrolet Silverado came in with the complaint that the blower motor will not turn off even with the key off. This is relatively common problem of the the full sized Chevrolet, GMC and Cadillac trucks with auto a/c controls. The first step is to lower the passenger side hush panel under the dash.
What to do if your climate controlled blower wont shut off?
If your climate controlled blower processor is shot, be prepared to spend mucho bucks for a replacement. But before you start throwing expensive parts at the problem, you’ll have to do some checking. Start by testing the gray/black wire at the blower motor control processor. First, try grounding the wire. Then try removing it.
Why does the Chevy Avalanche blower keep blowing?
The auto climate control fan speed is controlled via PWM with a solid-state driver. Completely different system, and different issue. I am running into a similar issue. 2003 Avalanche, fan keeps blowing even after engine is off, fan turns on and off intermittently. Dual climate control.
Why does my Silverado Sierra have no fan?
The failure mode on these is one or two of the resistors blow and you end up with just a few of the fan speeds or as previously mentioned the connector burns up and you have no fan speeds. Powered by phpBB © phpBB Group. phpBB Mobile / SEO by Artodia .
What are the signs of a bad heater motor?
Common signs include the car’s heater not working or getting stuck on a certain speed, or something getting jammed in the blower motor. 1. Blower motor stuck on one speed 2. Blower motor does not work on certain settings 3. No air from the vehicle’s vents Average rating from 130,908 customers who received a Vehicle Engine Cooling Inspection.
Why did my Chevy Silverado blower plug burn up?
Most aftermarket companies, NAPA CARQUEST ADVANCE will have replacement plugs you can splice in for about half the price of a GM plug kit, and they burn up because GM cheaped out on the size of the terminals and they get hot, when they get hot they loose tension which causes them the get really hot and melt the plastic plug.
When to troubleshoot a GMC Suburban heater core?
Over time, the heater core may fail. When this happens, you won’t get any heat in the passenger cabin and you’ll need to replace the core. However, before replacing the heater core, you should troubleshoot the heater core for your GMC Suburban. Turn the engine on. Turn the fan speed setting to the highest setting.
What kind of car heater won’t stop running?
Heater fan won’t run, Heater fan won’t stop running – GM products, Ranier, Escalade, Avalanche, Silverado, Suburban, Tahoe, Sierra, Yukon, Envoy GM has issued a technical service bulletin (TSB) #06-01-39-002B to address problems with the front blower motor.
Why does my GM front blower not shut off?
GM has issued a technical service bulletin (TSB) #06-01-39-002B to address problems with the front blower motor. In some cases in cold weather the blower motor may not run, or if it does, it may not shut off when you turn off the vehicle. The TSB applies to the following vehicles with automatic temperature control:
Why does my blower motor not shut off?
All of sudden the fan motor started running on high speed and will not cut off of high no other way than the ground off the battery, could not find on fuse panel the fan fuse. helpful? To clarify, are you talking about the engine cooling fan (under the hood), or the blower fan (for heat and A/C)?
What to do if your YouTube heater is stuck?
Heater Blower Stuck on after key is off…FIXED! – YouTube Heater Blower Stuck on after key is off…FIXED! If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
How to fix Chevy GMC Truck heater blend door?
1999 – 2004? Chevy GMC Truck Heater Blend Door Stuck Easy Fix How-to – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.
1999 – 2004? Chevy GMC Truck Heater Blend Door Stuck Easy Fix How-to – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.
Why is my rear AC blower not turning off?
Click to expand… The three minute delay smells of the recalibration when the Keep Alive Memory is lost in the HVAC CM-Aux. Makes me think the HVCA CM-Aux is the problem even before pulling the fuse.