Skip the auto shop - Our mechanics make house calls

Q: Air won't blow

asked by on

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.

A: This is a very common problem for your type...

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.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: No power on purple wire in start position....new starter..runs if i jump relay

Hello. If there is no ground getting to the starter relay then the computer is not energizing it. Typically when this occurs it is due to the computer not receiving a signal from the ignition switch or from the transmission...

Q: Hold button flashing, no a/c,and temp gauge not functioning

Hello. This can be caused by a few different things. Most of the time it is caused by low refrigerant in the system, but I have seen a lot of these switches fail as well as the pressure switches in...

Q: What Is the Difference Between a Water-Cooled Engine and an Air-Cooled Engine?

There are a few main differences between a water-cooled and air-cooled engine. Air-cooled engines utilize an engine cylinder design that incorporates cooling fins all the way around the cylinder and on top of the piston cylinder head. These fins draw...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...