My blower motor blows about 60% or so, so I ordered a replacement from Directauto on eBay. The one they sent has a single terminal connector, mine is a dual terminal with plastic snap cover. Pictured below are the new one on the left, andmy OE right. They refunded me while letting me keep the motor--which was very nice of them--but what motor do we have on our cars, and why doesn't the connector match what's on the market? My connector would seem to be clearly OE, it's integrated right into the harness. The motor is a Harrison GM corp. Here's what Directauto said in their response:

"Thank you for the information. The part numbers you provided to appear to be in the correct format, but we aren't able to locate a blower motor that will match.

We are sorry for this issue. On our end, everything shows the 700213 blower motor should be an exact fit.

At this point we will process a refund for the purchase. Please hold the part for 3 days in case we want it back. After that you can dispose of it. Let us know if you have any questions."

 

Did some quick research, and according to Rockauto, single terminal is for non AC use, and "two lead wire with 2 spade connector" was for AC equipped cars. This rings true, what says the forum? I may just use my refund to get one of these from Rockauto. Price is about the same.....

 

That blower motor will fit

however, in 87 or 88 GM changed the connector to the the 2 prong weather pack connector.

has nothing to do with if the car had ac or not.

 

The motor "fits", it's just the small matter of not being able to plug it in. LOL I wonder why Diretctauto acted like they'd never heard of it then, and could not find a match? I did find a motor on eBay that looked like mine, and there was a note in red that said "with AC", and the single terminal one does not have that note. Rockauto does the same thing. So if it's not about AC, some parts distributors seem to think it is. IDK.

 

The AC and Non-AC motors are different:

https://www.thirdgen.org/forums/cool...geable-ac.html

BTW, my AC car has two separate single connections. IIRC, the top connection is the ground and its spade connector must be transferred from the old case to the new one.

JamesC

 

The single connector is +12v, the metal of the motor housing is ground. As long as you have a ground to the fan chassis, it will work. The motors are physically the same, winding/power, no idea. I've had both, kept the single wire, no gaudy harness connector.
Other physical difference, blower wheels were different. A/c wheel is wider/deeper (not fact, just my observation).

I've the same motor as James, you can just see the chassis strap I made that grounds it to the air box bolt...

 

Yes, the AC wheel IS bigger. AC delete box isn't as deep as the AC box. I noticed that on these two motors too. Just confirmation that AC/non AC are different.

 

Isn't there a blower motor resistor that may be keeping it from running 100%? Sorry.....trying to remember.

 

Yes, there is a resistor, but generally if the resistor is bad the motor will not change speeds properly as I understand it. Mine changes speeds fine, but blows like 60% as hard as it should on all 4 speeds.

 

There's a high speed blower motor relay for the high Speed setting on the switch. Check this connector out also, It may be toast. Located on firewall harness about center of firewall

 

I found a motor at Autozone, correct type, today and installed it. I didn't even know the zone carried those motors, or I'd have checked there earlier. It was only $27. Seems like its blowing a little harder than it was, so I guess the old motor really was weak. I didn't notice anything wrong with any of the other connections, but I'll give them a close look. Seems like it's working pretty well now.