|
|
2008 Ford Edge AC/Heater Fan problem
|
|
|
| |
|
|
mthurman
Novice
Oct 15, 2013, 12:07 PM
Post #1 of 10
(10614 views)
|
2008 Ford Edge AC/Heater Fan problem
|
|
|
I have an 08 Edge... It has roughly 70k on it, and since about 65k it has had an on again, off again problem with the Heating/AC fan that blows the air out slowing down, and quitting all together. Whether it is on level 4 or 1. Sometimes when I get back into the car after it had died the day before, it will come on full blast... last a couple weeks.... then die again like yesterday. Any help in trouble shooting this would be appreciated. Thanks! Matt
|
|
| |
|
|
Discretesignals
Ultimate Carjunky
/ Moderator
Oct 15, 2013, 12:44 PM
Post #2 of 10
(10603 views)
|
|
Re: 2008 Ford Edge AC/Heater Fan problem
|
|
|
I'm assuming this has manual climate control because you stated blower speed positions. You should test for power and ground at the blower motor when the problem is occurring. You'll need to do a voltage drop test which means you need to keep the circuit alive by back probing the blower connector or piercing a wire then taking measurement with your digital volt meter. You can't perform this test properly if the blower switch isn't on or you disconnect wiring or connectors.
Power to the blower motor comes in on the black wire when any speed is selected. You should see close to battery voltage
The ground side of the blower (black/red wire) goes through the resistor in speed 1-3 and directly to the blower switch in speed 4. The blower switch completes the selected blower speed circuit to the vehicle chassis ground.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Oct 15, 2013, 12:46 PM)
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Oct 15, 2013, 12:44 PM
Post #3 of 10
(10600 views)
|
|
Re: 2008 Ford Edge AC/Heater Fan problem
|
|
|
The next time it stops try rapping on the motor with a screwdriver handle and see if it responds.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
|
mthurman
Novice
Oct 15, 2013, 1:09 PM
Post #5 of 10
(10595 views)
|
|
Re: 2008 Ford Edge AC/Heater Fan problem
|
|
|
Thanks Hammer Time...I will try this as well and report back to both of you.
|
|
| |
|
|
mthurman
Novice
Oct 15, 2013, 7:36 PM
Post #6 of 10
(10581 views)
|
|
Re: 2008 Ford Edge AC/Heater Fan problem
|
|
|
Ok, the first thing I tried was to hit it with a screwdriver handle and it fired right up! So do I need a new blower?
Thanks for your help!
Matt
|
|
| |
|
|
nickwarner
Veteran
/ Moderator
Oct 16, 2013, 1:07 AM
Post #7 of 10
(10497 views)
|
|
Re: 2008 Ford Edge AC/Heater Fan problem
|
|
|
Yes. The blower motor uses brushes contacting an armature to allow amperage to flow through. When they get worn they do not make as good a contact as they need to, and the heat they build up while running for a while drops the power even more. When you rapped on the back of the motor, you jarred the brushes inward enough to temporarily make contact and work. By the fact it responded to that test, you have proven that the blower motor is indeed bad and a new one would fix it.
The voltage drop test would also have come to the same conclusion, but you would've needed to know how to do it. Congrats on getting to the root of the problem and luckily its not a super expensive part. This time of year you certainly can't be without working heat.
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Oct 16, 2013, 2:45 AM
Post #8 of 10
(10308 views)
|
|
Re: 2008 Ford Edge AC/Heater Fan problem
|
|
|
Yep, change the blower motor and in the process, make sure the connectors in the plug aren't burnt.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
|
mthurman
Novice
Oct 16, 2013, 4:39 AM
Post #9 of 10
(9910 views)
|
|
Re: 2008 Ford Edge AC/Heater Fan problem
|
|
|
thanks everyone!!!
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Oct 16, 2013, 5:18 AM
Post #10 of 10
(9910 views)
|
|
Re: 2008 Ford Edge AC/Heater Fan problem
|
|
|
I'm going to close this as solved now to keep the spammers out. If you need it reopened, just PM any Mod.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 
2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes
Grounding Cable, 2017 Jeep Renegade Trailhawk
Howdy
