blower almost sucks
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Posting Guru
Joined: Sep 2010
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From: Grand Bay, Al
blower almost sucks
Does anybody make a blower that moves more air? My A/c is cold but doesn't blow good. I can feel it in the front seat but not good. It has been changed before by the po.
Laughing Gas
Joined: Aug 2014
Posts: 1,020
Likes: 9
From: Washington State
Your Ducting under the dash is probably got big holes in it.... nothing lasts forever, or you may have a vacuum leak at your ESOF pump system causing your AC/Defrost louvers to hang up. I replaced mine (Pump) to fix my 4x4 switching problem and my OEM Blower works almost too good now. That pump runs the whole vacuum system.
Cargo Master
Joined: Oct 2010
Posts: 2,089
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It may be that the evaporator coil is pretty dirty. If you buy the coil cleaner in the can at the hardware store, remove the blower motor, and give it a good spray like the can says. It will make a big difference.
If you get it first thing before the a/c has been run that day, an air blower through the blower motor hole may help as well.
If you get it first thing before the a/c has been run that day, an air blower through the blower motor hole may help as well.
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Posting Guru
Joined: Sep 2010
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From: Grand Bay, Al
Your Ducting under the dash is probably got big holes in it.... nothing lasts forever, or you may have a vacuum leak at your ESOF pump system causing your AC/Defrost louvers to hang up. I replaced mine (Pump) to fix my 4x4 switching problem and my OEM Blower works almost too good now. That pump runs the whole vacuum system.
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Posting Guru
Joined: Sep 2010
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From: Grand Bay, Al
It may be that the evaporator coil is pretty dirty. If you buy the coil cleaner in the can at the hardware store, remove the blower motor, and give it a good spray like the can says. It will make a big difference.
If you get it first thing before the a/c has been run that day, an air blower through the blower motor hole may help as well.
If you get it first thing before the a/c has been run that day, an air blower through the blower motor hole may help as well.
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Posting Guru
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From: Grand Bay, Al
Ok. Thanks. Its worth a shot
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Posting Guru
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From: Grand Bay, Al
It may be that the evaporator coil is pretty dirty. If you buy the coil cleaner in the can at the hardware store, remove the blower motor, and give it a good spray like the can says. It will make a big difference.
If you get it first thing before the a/c has been run that day, an air blower through the blower motor hole may help as well.
If you get it first thing before the a/c has been run that day, an air blower through the blower motor hole may help as well.
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Fleet Mechanic
Joined: Nov 2010
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From: Ringgold, Ga
Spray the cleaner then use just open end garden hose and flush the fins. MAKE SURE that the evaporator drain isn't clogged first. You may flood your truck.
Anything and everything that falls into the grill under windshield can end up clogging the evaporator. I found nuts pine needles and other goodies in my previous OBS truck.
Oh yeah I used shop vac reduced down to a piece of garden hose to get in the corners and vac the loose crap out first. Good Luck.
Anything and everything that falls into the grill under windshield can end up clogging the evaporator. I found nuts pine needles and other goodies in my previous OBS truck.
Oh yeah I used shop vac reduced down to a piece of garden hose to get in the corners and vac the loose crap out first. Good Luck.
Laughing Gas
Joined: Aug 2008
Posts: 823
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From: Dallas, Oregon
Since the prior owner replaced the blower motor, there is another thing to check. If you remove the blower to clean the evaporator, check the rotation of the blower motor. If the motor is turning the wrong direction, the fan will not move much air.
I have experienced replacement blower motors that had the color code for the wires exactly backwards from stock. This made the motor run backwards if you matched the colored wires. I had to reverse the wires to get the blower to run the right direction.
I have experienced replacement blower motors that had the color code for the wires exactly backwards from stock. This made the motor run backwards if you matched the colored wires. I had to reverse the wires to get the blower to run the right direction.
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Posting Guru
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From: Grand Bay, Al
Since the prior owner replaced the blower motor, there is another thing to check. If you remove the blower to clean the evaporator, check the rotation of the blower motor. If the motor is turning the wrong direction, the fan will not move much air.
I have experienced replacement blower motors that had the color code for the wires exactly backwards from stock. This made the motor run backwards if you matched the colored wires. I had to reverse the wires to get the blower to run the right direction.
I have experienced replacement blower motors that had the color code for the wires exactly backwards from stock. This made the motor run backwards if you matched the colored wires. I had to reverse the wires to get the blower to run the right direction.
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Does the fan speed change with all adjustment settings? I say this because my truck would only get to the third setting and when I turned it up to the 4th setting it wouldnt change. I replaced a small resistor/switch or something that is screwed in to between the evap coils and blower motor. It has 2 screws and red plastic that over time the contacts in there rust and corrode and you lose the fan speeds. I had to completely break mine and wire it up because it was so stuck and brittle it wouldn't come off
Thread Starter
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Posting Guru
Joined: Sep 2010
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From: Grand Bay, Al
Does the fan speed change with all adjustment settings? I say this because my truck would only get to the third setting and when I turned it up to the 4th setting it wouldnt change. I replaced a small resistor/switch or something that is screwed in to between the evap coils and blower motor. It has 2 screws and red plastic that over time the contacts in there rust and corrode and you lose the fan speeds. I had to completely break mine and wire it up because it was so stuck and brittle it wouldn't come off
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