HVAC Fan wire plug

[DieselCash]

Does anybody have a part number for the plug for the main red wire for the HVAC fan when on high.
I will add a picture of plug below.

This is the red wire that starts at the under hood fuse block that runs across the firewall and enters the firewall below the radiator tank. Then runs to this plug, to the relay for the HVAC motor. I have had no luck finding this plug. As you can see in the photo, it got a little warm.
I believe this plug is the cause of my fan not running on high intermediately.
Any help is appreciated!

 

[dbrannon79]

that is the same connector I ended up eliminating and soldering together then some heat shrink over it. the blower on high will pull about 20-25 amps continuous, any connections will create resistance and heat. as some point, I plan to run a heavier power wire into the cab for an add-on fuse block then tie this circuit into it along with separated relays one for each fan speed being when the fan is not on high, all the amperage is pulled though the dash switch. I have gone through two switches since owning my truck in early 2020 late 2019.

 

[DieselCash]

that is the same connector I ended up eliminating and soldering together then some heat shrink over it. the blower on high will pull about 20-25 amps continuous, any connections will create resistance and heat. as some point, I plan to run a heavier power wire into the cab for an add-on fuse block then tie this circuit into it along with separated relays one for each fan speed being when the fan is not on high, all the amperage is pulled though the dash switch. I have gone through two switches since owning my truck in early 2020 late 2019.

I was thinking of eliminating that plug. I wonder if there is a plug that could handle the amps better than the GM plug.
Mine is burned up pretty good.

 

[jrsavoie]

I was thinking of eliminating that plug. I wonder if there is a plug that could handle the amps better than the GM plug.
Mine is burned up pretty good.

A lot of times that's a sign the fan is on its way out.
I always add a ground there. From the fan ground to the dash mount bolt, just inches away.

 

[DieselCash]

A lot of times that's a sign the fan is on its way out.
I always add a ground there. From the fan ground to the dash mount bolt, just inches away.

That's a good idea, Thanks!

 

[dbrannon79]

the motors GM used in these blowers can pull quite a bit, as they age they just pull more power. I wish there was a brush-less motor option we could use. these use much less power and can get higher speeds from. Plus you can use a variable control on them like how a dimmer switch works. iirc Will had mentioned this once or twice.

 

[Glagulator]

Male conn is 12129155 term is 12084586
FM conn is 12129081 term is 12015858
The only reason for that conn. is so the main harness can be installed and removed without cutting any wires.
Solder it together and forget it.