Electric Radiator Fan Recommendations for a 2003 GMC Sonoma  

Question:

Expert Reply:

Adding an electric fan or fans is subject to how much space you have in the engine compartment. The first thing I would check is if your 2003 Sonoma has a fan driven by a serpentine belt (a belt that turns the pulleys of several components) or if it has its own belt.

If the fan is attached to the pulley for the water pump, you will not be able to remove it though the blades may be able to be removed. So if you find that your fan or blades can be removed and you can add an electric fan, I would look to see what area has the most space for a fan. If mounted in front of the radiator, you will need a pusher fan that pushes air through the radiator. These are the most efficient. If you have to mount the fan on the other side of the radiator, you will need a puller fan.

For a pusher fan, I recommend # D18214 with 2,100 CFM which is sufficient for your truck. This fan can actually be used as a pusher or puller fan. For a puller fan, I recommend # D16116 with 2,024 CFM which is more than enough for your Sonoma. I have included some FAQ articles linked below that explain a little more about radiator fans and electric fans.

expert reply by: Michael H

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