Heaters not blowing and its cold!

[95six.five]

Okay so in this new truck the blower isnt working. No matter what i have the settings on. And i'm pretty sure the controls are fine. So can anyone help me out on how to troubleshoot this?

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[99'Subourbon]

Having my heater repaired atm - Does it blow air at all? IF so, it's cold? Check 2 things; 1st check for coolant leaks. Left side of engine bay, behind intake box. There is a Y and a T fitting that are plastic and dryout - look for leaks around here. 2nd check the actuator/solenoid that's pinned up against the firewall, it could be stuck but you should be able to manually adjust it.

 

[95six.five]

No, its not blowing air at all. Heat, a/c or vent. None whatsoever

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[sewlow]

Ummm...fuse?

 

[99'Subourbon]

Check the leads to the blower motor, is it getting power? No, Check the A/C control module. Yes, bad blower motor.
A/C Control Module getting power? Yes, replace A/C Control Module. No, Check the Fuse.

Don't take this literal - it's how I would check mine and should give you an idea what to look for.

Good luck.

Err Edit: Blower motor is visible on the passenger side under the dash. Right most round looking black thing. To get it out, take the glove department out.

 

[95six.five]

Okay, ive got a wire thats burnt in half down by the blower motor. Its a black wire coming from up in the dash with 2 other wires and what appears to be the other end goes into the large wiring harness.

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[sewlow]

Black is usually 'ground'.

 

[95six.five]

Yeah thats what i thought. The end coming from up in the dash has power coming through it but the end in the wire harness doesnt. So im confused.

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[99'Subourbon]

Black is usually 'ground'.

That would be the case if its a single wire. If its the power cable(s), that are shrink wrapped black, with a plug on the end, it isn't. The ground should have tab on the end of the wire, that gets screwed to a tab on the blower motor. The power cable should be a connector male/female thingy.

 

[95six.five]

I've got a purple wire with a male/female connector and i've also got a black one with one similar but not the same.

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