Can someone tell me where the ground is supposed to be. Right now I have a wire going from the casing to a chassis ground. It works fine, but I'd like to know how it originally grounded. The only ground wire I see is for the relay, and it works fine, but the blower motor dosent work unless I ground the casing to the chassis.

Problem is, I ripped all of the HVAC equip. out last year (thats why I cant remember where the ground is) and now its starting to get cold and I need a heater pretty soon so... This is the only thing I have left.

Any help is appreciated.

 

I'm missing something here. You pulled out all the HVAC stuff, does that include the heater motor? I would think that when you mount it the screws securing it would ground it to metal - or is the heater box plastic?

My Firebird never had A/C so I can't compare mine.

 

You have it wired correct. Normally there is a little metal tab sticking off (screwed to) the motor casing and a spade type plug goes on it then to a chassis ground.

 

Thanks for the replys guys. Deadbird is right, some how I misplaced the metal tab and just forgot about it. I was junk yarding the other day looking for an A/C delete car to snag the heater box from (couldnt find one BTW), and spotted the little tab on a car. I kicked myself in the *** after I saw how it hooked up.

Side note. The only S10 I found with A/C delete was wrecked right at the heater box, rendering it useless. Oh well, I'll find one sooner or later.

Thanks.

 

I am having problems with my blower motor not working at all and I think its the ground or the relay. Could someone please post a picture of the ground for the blower motor the previous posts refer to?