Call Of The Week - Ron Ananian, The Car Doctor


Vehicle: 2008 Honda Ridgeline


Issue: Blower fan and AC stop working after restarting the car (typically after refueling)


Behavior:


 
No blower, no AC compressor



Comes back on after driving or waiting


Happens intermittently

Most Likely Cause:


Blower Motor Power Transistor (Resistor Module)


Controls blower speed and provides ground


Common failure point on this vehicle


Failure prevents both blower and AC compressor from working 

Recommended Action:


Replace the blower motor power transistor


Located under dash, by blower housing


Use OEM or Denso for reliability

Optional Diagnostics:


Check for 12V at white/blue wire (blower power)


Test blue/black wire for ground (from transistor)


Bypass transistor ground to confirm blower motor works

Visit us at https://www.cardoctorshow.com
Check out our Web Site for T-Shirts & Clothing!
Follow Us On Instagram  -   @ronananian   
Visit our You Tube Channel for auto repair tips and videos 
Call Into The Car Doctor Hotline 24/7 (855)560-9900   
Live Call In Show Saturdays 2-4PM Eastern Time 


Visit us at https://www.cardoctorshow.com

 

Call Of The Week - Ron Ananian, The Car Doctor
<ul data-start="82" data-end="371">
<li data-start="82" data-end="119">
Vehicle: 2008 Honda Ridgeline
</li>
<li data-start="120" data-end="218">
Issue: Blower fan and AC stop working after restarting the car (typically after refueling)
</li>
<li data-start="219" data-end="371">
Behavior:
</li>
<li data-start="219" data-end="371">
&nbsp;
No blower, no AC compressor
<ul data-start="239" data-end="371">
<li data-start="273" data-end="315">
Comes back on after driving or waiting
</li>
<li data-start="318" data-end="344">
Happens intermittently
</li>
</ul>
</li>
</ul>
<hr data-start="373" data-end="376">
Most Likely Cause:
<ul data-start="405" data-end="617">
<li data-start="405" data-end="617">
Blower Motor Power Transistor (Resistor Module)
<ul data-start="463" data-end="617">
<li data-start="463" data-end="508">
Controls blower speed and provides ground
</li>
<li data-start="511" data-end="551">
Common failure point on this vehicle
</li>
<li data-start="554" data-end="617">
Failure prevents both blower and AC compressor from working&nbsp;
</li>
</ul>
</li>
</ul>
<hr data-start="814" data-end="817">
Recommended Action:
<ul data-start="847" data-end="1004">
<li data-start="847" data-end="1004">
Replace the blower motor power transistor
<ul data-start="899" data-end="1004">
<li data-start="899" data-end="945">
Located under dash, by blower housing
</li>
<li data-start="970" data-end="1004">
Use OEM or Denso for reliability
</li>
</ul>
</li>
</ul>
<hr data-start="1006" data-end="1009">
Optional Diagnostics:
<ul data-start="1041" data-end="1213">
<li data-start="1041" data-end="1096">
Check for 12V at white/blue wire (blower power)
</li>
<li data-start="1097" data-end="1154">
Test blue/black wire for ground (from transistor)
</li>
<li data-start="1155" data-end="1213">
Bypass transistor ground to confirm blower motor works
</li>
</ul>
Visit us at&nbsp;<a href="https://www.cardoctorshow.com">https://www.cardoctorshow.com</a>
<ul>
<li>Check out our Web Site for T-Shirts &amp; Clothing!</li>
<li>Follow Us On Instagram&nbsp; -&nbsp; &nbsp;@ronananian&nbsp; &nbsp;</li>
<li>Visit our You Tube Channel for auto repair tips and videos&nbsp;</li>
<li>Call Into The Car Doctor Hotline 24/7 (855)560-9900&nbsp; &nbsp;</li>
<li>Live Call In Show Saturdays 2-4PM Eastern Time&nbsp;
Visit us at&nbsp;<a href="https://www.cardoctorshow.com">https://www.cardoctorshow.com</a>
</li>
</ul>
&nbsp;

With over 40 years of repairing cars and 27 on the radio helping you repair them, Ron Ananian, The Car Doctor, is an expert at everything automotive. Call us at 855-560-9900.

With over 40 years of repairing cars and 27 on the radio helping you repair them, Ron Ananian, The Car Doctor, is an expert at everything automotive.  Call us at 855-560-9900.

Ron Ananian The Car Doctor

Ron Ananian, The Car Doctor, is a nationally recognized automotive expert, master technician, and trusted voice in car repair and consumer advice. For more than 30 years, Ron has blended real-world shop experience with straight-talk radio, helping drivers understand their vehicles and the industry with clarity, humor, and honesty. As host of the long-running Ron Ananian, The Car Doctor radio show—heard nationwide across major networks—he brings diagnostics, storytelling, and practical wisdom together in a way only a seasoned mechanic can. Whether it’s a tough trouble code, a buying decision, or a behind-the-scenes look at shop life, Ron delivers the insight listeners rely on.

Ron Ananian, The Car Doctor, is a nationally recognized automotive expert, master technician, and trusted voice in car repair and consumer advice. For more than 30 years, Ron has blended real-world shop experience with straight-talk radio, helping drivers understand their vehicles and the industry with clarity, humor, and honesty. As host of the long-running Ron Ananian, The Car Doctor radio show&mdash;heard nationwide across major networks&mdash;he brings diagnostics, storytelling, and practical wisdom together in a way only a seasoned mechanic can. Whether it&rsquo;s a tough trouble code, a buying decision, or a behind-the-scenes look at shop life, Ron delivers the insight listeners rely on.

Ron Ananian The Car Doctor™

Call Of The Week - May 17, 2025 - Ron Ananian, The Car Doctor - 2008 Honda Ridgeline - Intermittent No Blower Motor Operation - (855)560-9900 24/7 Hotline

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/564b7342-f9b2-4759-9307-b2e20003f5e9/transcript

Advertisement