93 fan blower motor

[maniac mark]

Hey all, Im really ticked now I got a 93 safari with the typical fan blower motor issue when i got the van the seller put in a used one from a 94 safari, worked for a while ok, now doesnt want to work, took it out to a friends motor rebuild shop he put 12 volts to it and spun fast and smooth no problem, put it back in. Took out the 2 screws from under the selector control panal came out easy, everything looks good and connected ,when you move the lever for heat and cold you can hear the door flaps moving, same for climate control vacume sound good, just the 3 blower speeds dont work!! Saw the picture of the blower motor resistor,took that out ALL RUSTED TO YOU KNOW WHAT!! Got one today identical ,put it in, easy, put dielectric grease on connections....turn on van still no blower speeds tapped dash, knocked on blower motor when turned on .....nothing .Even checked A/c heater fuse, good, purple wire to motor not rusted out connections fit good. Now Im peeved and PLease help What the heck am I missing.

[gtkane]

Two things to check here.
1-Test for power at the blower connector. The fan motor may have a "dead" spot in it
2- if there is no power, remove the fan switch on the dash. They are famous for burning out/melting. It will be obvious if it is!

[maniac mark]

Hey thanx for responding< i forgot to mention that i did check for power and got 14.5 volts at the purple wire and i did look behind the blower switch lever its still good,my mechanic told me to check the blower motor relay, the small square box at the top of the fire wall above the fan blower motor. it was done . replaced it now blower works great!!! Thanks for gettin back to me!!