No air on driver vent only

[_nickjoseph]

If it’s obviously frayed or loose then it’s worth fixing. Otherwise that blower ground goes to G105.

For reference, I get 12.2V on mine with ignition on/engine off whether I ground it to the blower ground or to the horizontal bar behind the glovebox. You have nearly 0.5V difference when you ground to the ground wire. That seems high to me.

Checked the ground. Isn’t dirty and is tight. I took the wires off the motor and tested them. Truck off they’re at 12.5 with it on they’re at 13.75 but when it gets plugged in it drops down to 12

 

[east302]

Which wires were that?

 

[_nickjoseph]

Which wires were that?

The purple and black that plug on to the blower. They read way higher unplugged. Is that how urs is? They drop down from 13.75 to 12 when plugged in with blower on high truck on

 

[east302]

Is that lowest 12V backprobing it? Mine was 12.2V regardless of ground and 12.6V on the red wire (battery feed) at the high speed relay connector.

 

[_nickjoseph]

Is that lowest 12V backprobing it? Mine was 12.2V regardless of ground and 12.6V on the red wire (battery feed) at the high speed relay connector.

I didnt check it at the relay I checked it where it goes on the motor

 

[_nickjoseph]

Is that lowest 12V backprobing it? Mine was 12.2V regardless of ground and 12.6V on the red wire (battery feed) at the high speed relay connector.

Took out my motor and tried to spin the cage and it would barely move. Think it’s shot?

 

[east302]

I don’t remember how freely they spin, but think some resistance is normal. If it’s the original blower (will have a sticker that has a date and “Rochester” on it) then it may be worth a shot.

 

[_nickjoseph]

I don’t remember how freely they spin, but think some resistance is normal. If it’s the original blower (will have a sticker that has a date and “Rochester” on it) then it may be worth a shot.

I’ll try a new one and check voltage at it and see if it helps

 

[_nickjoseph]

I don’t remember how freely they spin, but think some resistance is normal. If it’s the original blower (will have a sticker that has a date and “Rochester” on it) then it may be worth a shot.

New one spins way easier but voltage at 12.4 with truck on. Could it be the relay or something cause I’m stuck

 

[east302]

I’ll compare mine this evening, but I’d think it should be a little under 14V (say 13.5?) or pretty close to your alternator output voltage.