Is this normal for the 70's series? Ive got a 85 BJ74 and on full blast it really doesnt produce much airflow. Any ideas on how to increase?
BJ74 climate fan not blowing very hard
- Thread starter SteveTheDog
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Recently replaced the resistor on mine (very easy to do...24v part 87138-90K01 from @Radd Cruisers ). Mine had at least a couple fan speeds that didn't work. Now all the fan speeds work and even the ones that did before seem to produce better airflow.
Pics: https://forum.ih8mud.com/threads/righty-moves-to-san-diego.840721/page-2#post-9736444
Maybe pull yours and have a look. Could be there's a bunch of straw, brush, fuzz, and/or other stuff mucking up the resistor. I suppose you could clean it up a bit, but for me it made more sense to simply replace the resistor with new.
Pics: https://forum.ih8mud.com/threads/righty-moves-to-san-diego.840721/page-2#post-9736444
Maybe pull yours and have a look. Could be there's a bunch of straw, brush, fuzz, and/or other stuff mucking up the resistor. I suppose you could clean it up a bit, but for me it made more sense to simply replace the resistor with new.
Is it operating on all 4 speeds? Is the airflow restricted somehow , eg has the ducting come apart or leaking?, are your controls opening/closing the flaps properly?
70 series fan blowers produce a healthy amount of air IMO.
70 series fan blowers produce a healthy amount of air IMO.
- Thread starter
- #4
it feels like there is a restriction somewhere. All controls seem to work. The truck was converted to a LHD.
- Thread starter
- #6
well, i figured it out. Wires were backwards. it was actually pulling air in rather than blowing out. Now she blows like a French whore in heat
That paints a picture.....
Actually a picture would have been nice ..... The French whore .... Not the fan motor.That paints a picture.....