1995 blazer LT

Ok, I was taking out all my AC parts to replace everything, had to remove the ecm and coolant tank to remove the blower motor. While unhooking all the electrical wires to the ecm I noticed this one plug was melted inside.

this does not go into the ecm… but it is right behind it , right in front of the blower motor.

any idea what this is for????

only issue I’m having with the blazer at this time is rear window switches don’t work and the blower motor won’t work on high. Could this have anything to do with that?

 

Bummer it’s so quiet in here.

so I installed all new compressor , dryer , blower motor and resistor. Had a shop charge the system.

still no cold air as the shop couldn’t get my blower motor to work. I got the car home and found a blown fuse for the AC, replaced it. Blower ran for a few seconds then blew fuse again. Then a third time. On the fourth try the fuse did not blow, blower motor working l, set max AC, blower on hi… compressor never kicks on.

what I discovered was when I unplug the blown connector in the pictures above, the blower motor is dead, when I plug it back in it works… for a while before the fuse blows, but the new fully charged compressor never kicks on.

Any advice on this… other than to attempt to replace the connector, my worry is I’m sure something else caused the connector to melt, so I probably would t be fixing the problem. I’m pretty lost when it comes to electrical.

 

Is this manual or auto AC?


George

 

Usually, melted connectors are caused by a poor connection that creates resistance, which causes heat buildup. In most cases, a new connector will actually fix the problem.

 

its a manual I believe