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Weak Blower Motor

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Old 07-25-2018, 05:58 PM
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Weak Blower Motor
For whoever posted some of the solutions to the common blower motor problems thank you. So far I have installed a new blower motor, checked voltage at motor it's getting 12v, cut hole in heater box and cleaned out the leaves, checked the cores they seem to be clean. I have the blower wired directly to the battery with a switch. Yet it still blows air like it's on low. Any other suggestions? Thanks
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Old 07-25-2018, 06:09 PM
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I second this weak blower motor post. I get that it's only cooling a small space, but it's pathetic - even on High.
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Old 07-25-2018, 06:34 PM
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It's possible that you have an accumulation of leaves and twigs in your heater box which is obstructing the air flow. There is a sticky dealing with this.
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Old 07-25-2018, 08:14 PM
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Before you go and tear it apart, check and make sure the motor is turning in the correct rotation.

This is an easy mistake.

Also check the air box for any obstruction, I have sucked microfiber towels and plastic bags in though the floor inlet.
Jim
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Old 07-25-2018, 08:15 PM
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Inside the cab passenger side below the glove box I cut a hole and cleaned out all the leaves there was a ton in there. Is there another spot leaves can accumulate?
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Old 07-25-2018, 08:16 PM
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Originally Posted by Jim Lane
Before you go and tear it apart, check and make sure the motor is turning in the correct rotation.

This is an easy mistake.

Also check the air box for any obstruction, I have sucked microfiber towels and plastic bags in though the floor inlet.
Jim
where is the air box?
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Old 07-25-2018, 08:52 PM
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Originally Posted by Jim Lane
Before you go and tear it apart, check and make sure the motor is turning in the correct rotation.

This is an easy mistake.

Also check the air box for any obstruction, I have sucked microfiber towels and plastic bags in though the floor inlet.
Jim
Well thank you Jim! The wiring was backwards haha it blows like a banshee now whoo hoo! I recently bought the truck and the previous owner wired it up like that. I didn't think to check it cause he ran the wires really nice and even used the same color code for the wiring as the fan (more than I would do haha).
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Old 07-25-2018, 10:17 PM
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Awesome.
Glad I could help.
Seems when you get a part from overseas the wiring color code means nothing.
The rotation is usually indicated on the blower wheel.
Good luck on your adventures.
Jim
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Old 07-26-2018, 08:48 AM
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Originally Posted by Jim Lane
Awesome.
Glad I could help.
Seems when you get a part from overseas the wiring color code means nothing.
The rotation is usually indicated on the blower wheel.
Good luck on your adventures.
Jim
You are right about foreign wiring. In Mexico, they will use whatever color for whatever circuit. It is unwise to draw any conclusions by the color of the wire...Mark
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Old 07-26-2018, 09:22 AM
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This tread is a perfect example, of what makes DTR a welcome place. Lantz is obviously new to this forum with 4 posts to his credit, and because of Jim Layne’s helpful tip, Lantz is a happy guy right now. This is how I’ve always known this forum to be. There’s no way one would even think of checking rotation first, but Jim Layne did. Saved Lantz a ton of wasted time and frustration.
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Old 07-26-2018, 10:12 AM
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Originally Posted by bigragu
This tread is a perfect example, of what makes DTR a welcome place. Lantz is obviously new to this forum with 4 posts to his credit, and because of Jim Layne’s helpful tip, Lantz is a happy guy right now. This is how I’ve always known this forum to be. There’s no way one would even think of checking rotation first, but Jim Layne did. Saved Lantz a ton of wasted time and frustration.
I agree! I've learned everything I know about diesels and my old truck from this forum!😁
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Old 07-26-2018, 11:50 AM
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Being a long time spectator off and on here as well as other forums I fully expected the "use the search feature" line. But I got a nice welcome from you guys here that saved my bacon, thanks again!
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Old 07-26-2018, 01:50 PM
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I had an access port cut a few years ago, but I’ll have that wiring reversed now! thanks, Jim Lane
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Old 07-26-2018, 03:27 PM
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Originally Posted by maybe368
You are right about foreign wiring. In Mexico, they will use whatever color for whatever circuit. It is unwise to draw any conclusions by the color of the wire...Mark
Electrons are so stupid. They don't care what color the insulation is or even if there IS any. Sometimes electrons don't even need wires.
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