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2000 expedition electrical problems

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  #1  
Old 01-17-2012, 08:10 PM
kirksey228 kirksey228 is offline
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2000 expedition electrical problems

i have a 2000 expedition and my reverse lights, cruise control, front blower motor,and my rear blower motor do not work, ive replaced fuse 5 and it keeps blowing, if i could just get pointed in the right direction or be given a solution it would be much appreciated. thank you!
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Old 01-17-2012, 08:27 PM
pdqford pdqford is offline
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i have a 2000 expedition and my reverse lights, cruise control, front blower motor,and my rear blower motor do not work, ive replaced fuse 5 and it keeps blowing,
Are you replacing fuse #5 in the BDB (Battery Distribution Box - under the hood) or in the CJB (Central Junction Box - under the dash)?

If you don't shift to reverse, don't use the cruise control, don't use the front blower or the rear blower, does this fuse still blow?
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Old 01-19-2012, 02:24 PM
kirksey228 kirksey228 is offline
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yes, as soon as i start the truck it pops, and if i leave it out and plug it in after i start it it pops, i thought maybe it was the blower motors but they both blow when hotwired, and i think the problem is the switches but im not sure. any ideas?
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Old 01-19-2012, 02:57 PM
kirksey228 kirksey228 is offline
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also, the front heat worked after the reverse lights and cruise control. this is frustrating the hell out of me.
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Old 01-19-2012, 05:55 PM
pdqford pdqford is offline
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Are you replacing fuse #5 in the BDB (Battery Distribution Box - under the hood) or in the CJB (Central Junction Box - under the dash)?
.......................
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Old 01-19-2012, 07:31 PM
kirksey228 kirksey228 is offline
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im replacing number 5 under the dash
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Old 01-19-2012, 09:54 PM
pdqford pdqford is offline
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You didn't indicate which model you have, if its 4X4, if it has air suspension, or an EATC heater, but here is what fuse 5 powers:

The DRLs
The Speed Control Servo
The DTR (Digital Tranny Range) sensor
The Function Selector Switch on the heater
The Blend Door Actuator
The EVO (Electronic Variable Orifice) Module
(variable power assist for the steering)

I'd suggest getting a wiring diagram so you can find an appropriate spot to disconnect all these items and see if the fuse still blows.
If it doesn't, then connect up one more of these items until the fuse blows.
Then you'll know what circuit to concentrate on.

BTW, has your Expy had the Cruise Control wiring recall fixed by the dealer to prevent a fire?
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Old 01-19-2012, 10:51 PM
kirksey228 kirksey228 is offline
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It is a 4x4 and it does not have air suspension. Is eatc electronic air temperature control? If so it does not have it. I have a repair manual for it but I don't think it has the wiring diagram for fuses. Is there a specific place I can look for that? And I just purchased it in June so I'm not sure, is that a huge risk?
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Old 01-20-2012, 02:07 AM
alloro alloro is offline
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The most likely suspect is one of the 2 blower motor speed resistors. One of the resistive coils could've broke and is shorting to ground. You can test this theory by unplugging the connector going to each of the speed resistors and seeing if the fuse holds.
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Old 01-20-2012, 01:54 PM
pdqford pdqford is offline
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Is eatc electronic air temperature control?
Yes
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I have a repair manual for it but I don't think it has the wiring diagram for fuses. Is there a specific place I can look for that?
Easiest way to check to see if your vehicle has had the cruise control wiring modification installed is to take your VIN to your friendly Ford dealer Service Department and they can run it through their OASIS system to see if there are any outstanding recalls on your vehicle.

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is that a huge risk?
Well, I don't know how huge the risk is, but I do remember that Ford was suggesting that vehicles be parked outside until the modification was performed.

(And some of the earlier modifications were recalled again for an 'improved' wiring harness modification.)
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Old 01-22-2012, 11:02 PM
kirksey228 kirksey228 is offline
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Quote:
Originally Posted by alloro View Post
The most likely suspect is one of the 2 blower motor speed resistors. One of the resistive coils could've broke and is shorting to ground. You can test this theory by unplugging the connector going to each of the speed resistors and seeing if the fuse holds.
do you have an idea where the resistor is under the dash?

and thamkyou both for your help i should be able to get to it in the next couple days and ill get back on here.
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Old 01-23-2012, 11:49 AM
alloro alloro is offline
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Quote:
Originally Posted by kirksey228 View Post
do you have an idea where the resistor is under the dash?
Under the passenger side of the dash, about 6-8 inches away from the blower motor towards the driver's seat. It has a single square 4-wire connector going to it and 2 8mm bolts holding it up.
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Old 01-23-2012, 08:17 PM
kirksey228 kirksey228 is offline
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is there a way to bypass it or should i just replace the resistor?
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Old 01-23-2012, 09:30 PM
alloro alloro is offline
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Just unplug the connector to see if the fuse stops blowing. If it does then change the resistor. Do this same test with the rear blower too.
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Old 01-24-2012, 11:33 PM
kirksey228 kirksey228 is offline
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Its not the speed resistors, the switches, or the cruise control. Idk what else to check, any ideas? Thank you for your helps so far it is very much appreciated!
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2000, 2001, blower, blowing, control, cruise, electrical, expedition, f250, ford, fuse, lights, motor, problem, problems, reverse

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