Ac blower motor has a mind of its own

[MWideman]

Anybody have issues with an ac blower motor that will not come on sometimes? I have checked the relays and fuses under hood and all are good.

2003 2500 ram quad cab 2x4 stock 5.9

 

[RikDavis]

Likely just worn out if it is intermittent. I had to replace the one in my 99 at around 300 k.. If it will always work on high but not other speeds there is a large resistor for the lower speeds in the air plenum near the motor,or at there was in mine

 

[Bob4x4]

Check the power at the motor.If you have b+ and b- replace the motor.For a quick and dirty check next time it quits give it a love tap-starts to spin,change it out

 

[fireman717]

Mine did that the other day. Lights to indicate ac were on but no blower motor. Had to shut off truck then restart. I replaced both batteries the next day hope that is it.

 

[MWideman]

Its FIXED!!!! Had to replace the ignition switch and 14 pin connector on wire harness. Second time to do it.