A/C blows weak

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Aug 7, 2000 | 01:24 PM

tom87

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Joined: Aug 2000

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A/C blows weak

I have and 87 F150, 300, 4spd. My A/C is cold but the thing just isn't blowing hard enough. The fan switch is working, I can tell it switches to different speeds and I can hear blowing hard down by the heater core but the air isn't coming out of the vents very hard. I can switch between defrost and floor and it blows the same there. Any info would be appreciated. When it's on panel it's only blowing out of the vents so I don't think I'm losing anything to the defrost or the floor.

Aug 7, 2000 | 05:44 PM

deleontow

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Joined: Jun 1999

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From: Banning CA

A/C blows weak

Time for a new blower motor

Dave

http://a2ztowing.homestead.com/a2ztowing.html

Aug 7, 2000 | 09:05 PM

dozerguy

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Joined: Aug 2000

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A/C blows weak

If you take you blower motor out, you might hook block off the outlets except for one and then use a leaf blower to blow into the open outlet and see if you get any debris (leaves or junk)blown out the hole where the blower motor mounts. (sort of a reverse flush)

Aug 7, 2000 | 10:15 PM

nitro94

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Joined: Feb 2000

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From: Wichita USA

A/C blows weak

Here are a few things to look for. I have seen all of these things happen. Aftermarket blower motors wired backwards. Squirrel cages loose on the shaft and not turning fast enough. Blower moters not turning fast enough (bad motor). Evaporator cores plugged with leaves etc. Under dash ducts out of place (air leaks).

Aug 7, 2000 | 10:26 PM

rocky50

Senior User

Joined: Jan 2000

Posts: 101

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A/C blows weak

>Time for a new blower motor
>
>
>Dave
>
>http://a2ztowing.homestead.com/a2ztowing.html

Sounds like the blower to me also, when I replaced mine I found parts of newspapers and junk that got shoved up there somehow. (women treat cars and trucks like garbage cans :-))

Moe

Aug 8, 2000 | 09:26 AM

tom87

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A/C blows weak

Thanks for the posts. I'm going to check for the leaves, debris, etc. I can see the squirrel cage from inside the truck (look between heater core and kick panel) it seems to be turning fine. This is an aftermarket blower and I was thinking of replacing it with a Ford blower.

Aug 10, 2000 | 09:13 PM

65fordmidsize

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Joined: Jul 2000

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A/C blows weak

[font size="1" color="#FF0000"]LAST EDITED ON 10-Aug-00 AT 10:15 PM (EST)[/font][p]98 F-150 XLT,245 70 yokahama AVS/ST's
prarie tan w/tan int.
K/N gen.II fipk
B/M electronic shift improver
COBRA 75 remote mount CB with weather
alert
SNUGTOP LID/body color
4.6 litre V-8
Dual exhaust/rear exiting/Gibson
rectangle tips
Hypertech Module and powerstat
losing the chrome(YUCK!!!)front end
going all body color with speed grilles
for bumper and main grille.
You think if I weld the third door shut
it will stop the door cracks???

That's all I had to hear,I had the same problem
with my 86 E-150. I bought an aftermarket blower
motor and it had less than half the output of the
ford motor. It wasn't cheap,($141)but it was well
worth it. The Van has dual a/c and cools down in
seconds,the only way to go if you own a van in
south Texas. Buy a Ford blower,you'll notice the
difference the second you turn on the a/c.