View Full Version : Weak AC / heat blower fan speed
Drewstang
05-11-2017, 06:35 AM
It might just be me getting readjusted to the MM but it seems like the air coming out of the vents in the car is not as high as it should be. On high with MAX AC I can barely feel it blowing on my face. Could the blower motor resistor be weak? Any ideas? I'd like to get it fixed before summer and 100* temps get here.
fastblackmerc
05-11-2017, 08:22 AM
It might just be me getting readjusted to the MM but it seems like the air coming out of the vents in the car is not as high as it should be. On high with MAX AC I can barely feel it blowing on my face. Could the blower motor resistor be weak? Any ideas? I'd like to get it fixed before summer and 100* temps get here.
Could be the EATC or the BCM.
Run the EATC self-test.
Have the o-rings been replaced in the EATC?
Try tapping the BCM with a screwdriver handle.
Drewstang
05-11-2017, 08:31 AM
Could be the EATC or the BCM.
Run the EATC self-test.
Have the o-rings been replaced in the EATC?
Try tapping the BCM with a screwdriver handle.
I haven't replaced the O rings yet. I've got about 90 of them left. Where is the BCM located?
fastblackmerc
05-11-2017, 09:16 AM
I haven't replaced the O rings yet. I've got about 90 of them left. Where is the BCM located?
Behind the passenger side cam cover.
BLACKMARAUDER04
05-11-2017, 12:41 PM
Can you spare a few o rings?
BLACKMARAUDER04
05-11-2017, 12:42 PM
I lost the MAX high a long time ago. Still trying to find a junk yard one that works properly. The last one I got only blows out the top vent, hence the o ring need.
jimbok1951
05-11-2017, 01:41 PM
I haven't replaced the O rings yet. I've got about 90 of them left. Where is the BCM located?
Sent you a PM
fastblackmerc
05-11-2017, 01:55 PM
I lost the MAX high a long time ago. Still trying to find a junk yard one that works properly. The last one I got only blows out the top vent, hence the o ring need.
Even junk yards ones will need repair.
I can fix yours, PM me.
Drewstang
05-12-2017, 04:44 AM
Can you spare a few o rings?
Yeah, PM me your address and I'll send some out.
Sent you a PM
Replied.
Even junk yards ones will need repair.
I can fix yours, PM me.
The self test on the EATC made a difference. Not sure how, but it blows much stronger than before. I had to turn the A/C down last night on my way home.
fastblackmerc
05-12-2017, 06:19 AM
The self test on the EATC made a difference. Not sure how, but it blows much stronger than before. I had to turn the A/C down last night on my way home.
That will work for awhile, then you'll need to start fixing things.
Drewstang
05-12-2017, 07:44 AM
That will work for awhile, then you'll need to start fixing things.
O rings and BCM solder, correct?
fastblackmerc
05-12-2017, 04:50 PM
O rings and BCM solder, correct?
Correct............
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