What would cause the blower motor to constantly blow out the defrost vents even with the ETAC off?
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What would cause the blower motor to constantly blow out the defrost vents even with the ETAC off?
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Try to swap out the EATC with a spare or another one to see if it the problem presists. If the EATC is off it shouldn’t telling the blower to turn on. Troubleshoot, you can go to the boneyard and find one and and see what happens. Process of elimination and on the cheap.
Righteous Indignation
03 300A
4055 of 7838
4054 of 7093 in Black.
Born 8/23/02
Adopted in 1/15
SOLD
I may try that
I had the BCM re-done by FBM at the same time I had my LCM done and thought that would fix it. Guess not!
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I believe default for eatc bad orings is defrost
2004 SB Ported Trilogy 48
Has supporting mods and stuff
Thanks to Marty O for his help in updating this car.
R.I.P.
Rex "SC Cheesehead"
I'll bet $5 it the BCM. If it still blows with the controller in the off position the BCM is shorted out or more like fused together. Get a BCM you know works and swap them out. I can't stress enough the phrase "you know works" They can be a hassle to swap out only to find out the one you put in doesn't work either.
It was an honor to have
my ASS kicked by you!
Rest In Peace!
Paul T. Casey
Try tapping the BCM.
“When you can’t make them see the light, make them feel the heat.”
Ronald Regan
"The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."
Lt. Colonel Ralph Peters
“Be polite, be professional, but have a plan to kill everybody you meet.”
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General James Mattis
Is it blowing at max speed or something lower?
Also try unhooking the electrical connectors on the back of the EATC head unit. If the fan stops, you've found the problem. If it keeps going, it's likely the BMSC.
The Blackbird
Trilogy #61
Driveway Queen
The Spruce Goose
2004 Grand Marquis LS Limited Edition
Daily Driver
When mine did that it was the BCM. Motorcraft, only 2 years old. Replaced with new MC and all is well 3 yrs later.
WLB
BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
______________________________ ___________
BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
#2912 of 7093
Conceived 8/6/2002
Delivered 9/19/2002
Adopted 8/10/2011
Trilogy 242 - Self Installed 9/9/12 (0-60 5.5 sec)
Pioneer 6x8 Front
Legacy 600w 6x9 Rears
JL 6.5 SubWoofer
K&N CAI
Window tint 50% rear/35% front
FBM CHMSL with Strobe mod 7/1/12
DR Deep Aluminum Trans Pan
Sparta FOMOCO Racing 8.8 Girdle
Mo's Dyno Tune
Gorilla Nuts - The System
Ford Racing 4.10s, 31 spline Cobra carrier & axles 7/1/12
Powder Coat Axle Housing 7/1/12
CME HP Rear Control Arms & Watts Link 7/1/12
______________________________ ________________
Rex "SC Cheesehead" Weinbender 11-14-13
Ed "Baaad GN" Linthicum 8-6-2014
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