Dang Heater blower

Can anyone help? In the winter, and only in the winter :screwy: . My heater blower has to be smacked under the hood everytime I start my Blazer to get it running. And like clock work it stops working as soon as I shut it off. I imagine this is a problem with the fan blowere itself. But where is it and how do I get it out and replace it :confused: . Thanks for your help.

If you look at the firewall on the passenger side of the vehicle you will see it in back of the wheel well. It has a purple wire going to it (usually). Four screws hold it in place, piece of cake to change. They are under $50 and most times come with the squirrel cage attached.

oops, forgot about the black ground wire attached to one of the mounting screws and it will ground on the firewall.

I can not see what it is you are talking about. I see a black and purple wired plug going into a black box that seems to encompass all of the parts in that area. I have A/C could that make a difference in finding and removing the fan blower. I have changed blowers before and they are like you mentioned stuck on the firewall with 1-3 screws but I can't even see where this one is. this black box I am referring to has lines and instructions that say for motor service cut here. Or tear line here. I think that motor may be inside that big mess and it does not look easy to get in to. Thanks again and wow that was fast reply.

You have a newer Blazer, don't you. I have never changed one of the newer ones. Better get a chilton's or haynes manual or maybe someone else will post that has done it. I have heard rumors to the effect that the heater box has to be cut but as I said, I havn't seen one yet.

Here is a great link, it appears that you have to do some cutting. Get your Dremmel out.

http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/18/be/29/0900823d8018be29.jsp

Nice link.

Yep you have to cut the black box. I used a gas powered pencil style solder iron with a point type tip and it mades a nice clean melt/cut or a very short hack saw blade but be carefull and take your time

i am getting ready to do the same job. Any other tips....also how did you get that bloack box piece to stay back on there....what compound did you use? This is the part that is scaring me the most is cutting the dang box. Anyone know exactly where to cut it at?