I have a 02 Dakota an after I got it noticed a set of about5 or 6 new wires wired in near blower motor..

Had been working some an would kick off on its own at times on fan..it seems 100% now non functioning

What is the issue with many of these blowermotors an resistors ,etc..?
Anything new I should look at besides the fuses relay an resistor [once replaced ]?
Thanks

 

Looked at it an a wire burnt at metal pins an plastic an resistor bad..

 

It is common.

That burnt pin is from a bad connection. Double check that all connections are clean and tight. If you are in doubt, replace it.

The blower motor itself may be starting to fail too. It's not uncommon if it's the original. They can bind and draw excessive current - not enough to blow a fuse but enough to melt the connector.

 

Very common indeed, I liked someones idea to completely bypass the two plastic plugs and solder the wires together individually.
I also replaced the motor and I'm going on 4 months

 

Thanks for the reply.
I put another wiring harness resistor kit in it an checked fan motor.
I did a wire twist cap instead of using those other crimp type connectors so that may help avoid trouble.
I lubed fan an used die electric on electrical connectors.

Fuses were ok .

I'll see how long it lasts an consider blower moror if it burns wiring again.
--found out that burnt wire is the one going DIRECTLY to blower fan ..
Can this be from motor failing?

 

Yes. The motor is likely failing. The bearings are likely drying up and it takes more amps for it to turn - leading to the burnt connectors.

 

So far the soldering of the wires is working for me. The plug tightness is supposedly the issue. You would think they would have fixed it in the replacements by now!

 

a loose pin fit in the connector will cause that. replace both sides of the connector. the loose pin fit makes and breaks contact with vehicle movement. Each time the connection breaks and makes, it creates an arc of electricity that eventually burns the connector.

household wire caps are a unacceptable method for automotive repair. Bare minimum it should be butt connected and heat shrinked. Ideally, it should be open barrel crimped, soldered and heat shrinked.