Q: Air won't blow

asked by on June 04, 2016

I have a 2003 Chevy trailblazer. The air in the front like heat and ac blows, but it's a really low blow even if it's turned all the way up. Could it be the blower motor?
My car has an automatic transmission.

Air is not coming out of vents Inspection $94.99 - $114.99 Get a Quote

This is a very common problem for your type of vehicle. Most likely what has happened is that the blower motor is going bad. As a result of that, it is drawing too much current. What is likely to be found as well as the bad blower motor is that the connector may be melted, causing a bad connection.

I believe that replacing the bad blower motor and the blower motor resistor assembly should fix your problem. The connector that is melted is part of the blower motor resistor. The blower motor resistor is also a high failure rate part for your vehicle, so replacing it will save you some headaches down the road, most likely.

If you need more assistance, feel free to make an appointment with one of the mechanics at YourMechanic. They can come to your home or office to diagnose your issue and perform any repairs.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I use the child restraint tether anchors?
Depending on your exact model, your vehicle is equipped with either two or three child restraint tether anchors. Many child restraint systems rely on tethers. The anchors in your car are on the back wall of the cabin. Attach the...
Leaky oil valve
My guess is that you mean you have a leaking valve cover. This is a pretty straightforward repair that can be handled by a professional, such as one from YourMechanic. They can come to your home or office to inspect...
Slight overheat low coolant
I would suggest having the system pressure tested when the system is cold and do not forget to check the radiator pressure cap also for any leaks. Have the system pressure tested and it should not leak any pressure in...
Fuel pump relay will not kick in
There are a number of "switch connections" that all have to be successfully closed/connected in order for the fuel pump relay to be energized. These include: whatever security mechanism may allow/disallow a "Start" sequence, the ignition switch itself, a Neutral...
Will a 2001 dodge diesel motor change out with a 2005 computer and all the components?
Changing the engine will determine what type of engine you have. If you have a CPP 24 valve Cummins engine, then the engine will swap just fine as they fit the 1998 to 2005 models. However, if your vehicle requires...
Car turns off when im at complete stop but not when parked
Hello, thank you for writing in. Finding the cause of your issues is going to be a process of elimination. There are several components you are going to want to check and test if possible. First, have your vehicle scanned...
2006 BMW X5 White Smoke From Exhaust
My guess is the valve stem seals are bad. This is a very common problem with BMW vehicles the same era as yours. As the seals age and harden, they allow oil to seep past the valves and into the...
Loss of brake power/pressure once ABS is activated
If the pedal is sinking to the floor, you have a problem with trapped air in the hydraulic system, a leak, bulging hoses to the 4 wheel positions (the flexible rubber hoses) and/or a faulty master cylinder. To have the...
Squeaking from the front driver side
What you are describing sounds like a bad or worn out ball joint. A ball joint is designed to pivot through multiple planes. Of course, because the ball joint constantly pivots at different angles, it tends to wear out more...

Related articles

2012 Chevrolet Equinox vs. 2012 GMC Terrain: Which One Should I Buy?
The mid-size crossover SUV category offers the comfort and size of an SUV, but on the platform of a car, giving it the look and feel of a large hatchback. The unibody construction typical of passenger vehicles is used instead...
The Best Used Cars to Buy If You’re a Plumber
Plumbers Plumbers need to carry around all manner of tools and supplies. If you’re plumbing a large building, or even a decent sized home, you’re going to need a vehicle that has quite a bit of cargo capacity. A car...
How Long Does an AC Compressor Belt Last?
For For the air conditioning system in your car to work properly, it has to pressurize refrigerant. That is the function of the AC compressor. The compressor itself gets a signal from the AC relay, and is operated by a...