FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
Is my blower motor dying?
Need some help from our Pontiac electrical gurus.
Ran my car all weekend here in the Detroit area for Dream Cruise, everything was fine running AC on high. Last night on the ride home AC & blower stopped working. I checked this morning and the 30A fuse from the back of the alternator was blown, replaced it and immediately blew again when I turned on the blower motor switch Could my blower motor be dying and causing a high current load to be blowing the fuse? Everything else in the car seems to work fine. Any suggestions where to start looking for problems? Again nothing has changed in my electrical system at all. thanks in advance
__________________
Phil '63 Grand Prix / 389 Tri-power |
#2
|
||||
|
||||
is the motor stuck?
George
__________________
"...out to my ol'55, I pulled away slowly, feeling so holy, god knows i was feeling alive"....written by Tom Wait from the Eagles' Live From The Forum |
#3
|
||||
|
||||
Pull the wire off of the blower motor and see what happens. I call it 50/50'ing something. If it still blows it MAY be your wiring, switch, resistor, etc. If it doesn't, I'd say it's the motor. At least then you'll know whether to turn left or right.
|
#4
|
||||
|
||||
No, the motor isnt stuck. It will runs for a few seconds before the fuse blows. It doenst make any weird noises like bad bearings or a rusty shaft
__________________
Phil '63 Grand Prix / 389 Tri-power |
#5
|
||||
|
||||
Does it run well for the short time? if the motor is worn or too much friction, starting current may be high enuf to blow the fuse. Try starting the blower at a lower speed, then switch to high speed to see if it runs then. lower speed settings add xtra resistance to the motor circuit which would reduce the start current.
George
__________________
"...out to my ol'55, I pulled away slowly, feeling so holy, god knows i was feeling alive"....written by Tom Wait from the Eagles' Live From The Forum |
#6
|
||||
|
||||
Turn AC off and heater on. Try the blower then?
What year of car is it? Is their also a fuse on the fuse block for blower? (I'm thinking more along line of AC and/or clutch going out?)
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#7
|
||||
|
||||
Replace the motor, then you know it isn’t that.
|
#8
|
||||
|
||||
Quote:
It blows the fuse without the AC being on, I tested it with the key on (power) and the HVAC selector in HEATER position, blower on Low.
__________________
Phil '63 Grand Prix / 389 Tri-power |
#9
|
||||
|
||||
Then I would change the fan blower.
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#10
|
||||
|
||||
yes it seems to blow the fuse at any speed, but not when the blower wire is disconnected. SO I'm 99% sure its the motor. Just didn't want to have to remove & replace it. It's very tight in that area with the AC stuff.
thanks for the help.
__________________
Phil '63 Grand Prix / 389 Tri-power |
Reply |
|
|