Blower Fan Motor is giving us problems

Tiny
CHRISANDANNETTE
  • MEMBER
  • 1999 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 111,000 MILES
70% of the time the A/C fan in our van works without hesitation. Over the last two months it has been glitchy. We will start the van and there will be no blower fan in any mode we try. The fan kicks in as soon as we reach about 45 miles per hour, and is fine for days after that, turning on and off with no problem. Is there a capacitor on the fan motor that may be going that would make the fan not kick in until it is spinning already by the flow of outside air, or is there another obvious problem I am overlooking? Thank you for your time.
Wednesday, December 3rd, 2008 AT 5:37 PM

23 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,563 POSTS
Hi:
It could be a couple things. First you need to check for power to the motor when it doesn't work. If you're getting power, replace the motor. If no power, move to the blower motor resister. Check for power out there. If power in and none out, replace the resister. If no power to the resister, move back to the switch and check for power in and out. Replace the switch if there is power in and not out. If no power to the switch, you need to trace the power supply to find a bad wire or connection.

This guide will help show you how to runt he test to see what's wrong.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Here is the blower motor location so you can replace it. Check out the diagrams (Below). Please let us know what you find.
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Friday, December 5th, 2008 AT 3:22 PM
Tiny
2UNDER
  • MEMBER
  • 1 POST
  • 1999 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 19,900 MILES
I replaced the switch control panrl and the resistor but still have no blower. The compressor is working
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Check the relay and the blower motor itself.
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
JLELANDTHOMAS
  • MEMBER
  • 2 POSTS
  • 1997 DODGE CARAVAN
  • 120,000 MILES
The system was straight wired I rewired and put the correct control unitl or relay as per ingo.I have no power to the blower resistor also the control panal buttons are flashing even after running the recalibration mode.I am a retired mechanis and received answers all around the problem no real info just people wanting me to replace things no info on the problem.
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Here is a wiring diagram. Where are you loosing power?

I know you have been everywhere but it is very difficult to diag something you cannot see or touch

Roy
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
JLELANDTHOMAS
  • MEMBER
  • 2 POSTS
Hey Thanks for the clear diagram.I found that behind the control panel was another wire they had by passed. Thanks to the clearer diagram I was able to trace it out. It seems when we don't do these things every day anymore we loose track of it. But I am back on track with this one
Thanks again.
PS I was fully certified until a few years back.
Johnny t.
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
D.NEHAS
  • MEMBER
  • 2 POSTS
  • 1997 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 22,800 MILES
My blower motor just started stopping and starting whenever it feels like it. I had a 1998 dodge caravan with the same problem and it started doing the same thing at about the same milage
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
CH112063
  • MECHANIC
  • 1,320 POSTS
Yeah me too. I had to put a switch in it. They ran too much currant through it.
Joe Help?
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
D.NEHAS
  • MEMBER
  • 2 POSTS
Hey joe,
did you replace the switch on the control panel inside the van or is there another switch (relay) located elsewhere in the van.
Thanks
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
CH112063
  • MECHANIC
  • 1,320 POSTS
I had to put a switch in the control panel. Easy job, but be careful. Key off.
You could see it was burnt and the connector was melting.
Depending on the temp climate controls a resistor is also used for the different speeds also. When the resistor is bad, high speed only. So 3 things, the switch, resistor, and motor could be at fault and of course the circuit that includes the wiring and connectors. Ok I'll check back at 11. Joe
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Tuesday, November 3rd, 2020 AT 9:54 AM (Merged)
Tiny
CLOWE2007
  • MEMBER
  • 2 POSTS
  • 1996 DODGE CARAVAN
Dera Support,
My heater-fan speed :wink: switch only works in possitions 2, 4&5. I have tried installing a new/used fan switch and it does the same thing. Possitions 1&3 do not work.
What can I replace and where would it be located?
Thank you for your time and consideration.
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
CARUNDELL
  • MECHANIC
  • 602 POSTS
Hey clowe,
It sounds like the blower motor resistor has failed. It should be located in the heater box assy, close to the blower motor. Let us know!

Chris
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
CLOWE2007
  • MEMBER
  • 2 POSTS
Hey clowe,
It sounds like the blower motor resistor has failed. It should be located in the heater box assy, close to the blower motor. Let us know!

Chris[/quote:89c1776b8b]
Hello Support,
I will do so. But I gave you the wrong engine size;
It is a 6/96 4cyl 2.8ldr. I'm not sure if that will make any difference.
Please let me know either way.
Thanks agan for your time and consideration.
?
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
CARUNDELL
  • MECHANIC
  • 602 POSTS
Your welcome! Engine size should not matter! Let me know if you have trouble locating it on the vehicle!

Chris
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
DRTICE
  • MEMBER
  • 1 POST
  • 1996 DODGE CARAVAN
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 188,000 MILES
On my 1996 Dodge Caravan My heater blowers and turn signals went out. Is there one relay or fuse that may affect both and if so where is it?
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Check fuse 3--40 amp, power distribution center, under the hood. Also, check for voltage at the fuse, use voltage tester, hot all the time. Haven't looked at turn signals, yet.
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
CATHERINEVELA
  • MEMBER
  • 2 POSTS
  • 1991 DODGE CARAVAN
  • 214,000 MILES
Blowers for heat have stopped working. I replaced blown fuse and now all it does is make a weird clicking noise on passenger side dash. What could it

I have seen a few things on line that it could be, relay, hvac motor etc. The fuse was blown but I replaced that today and it still does not work. The a/c didn't work when I got it, so im not too concerned about that, but I am unable to defog my windows when I leave for work in the mornings.
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,778 POSTS
This is typical of a tight motor. The fuse may blow again if you switch the fan speed to high. If it does, unplug the fan motor and try it again. If the fuse doesn't blow that way, replace the motor or remove it and spin it by hand to see if it will free up.
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
CATHERINEVELA
  • MEMBER
  • 2 POSTS
Ok, thank you! I will have this done asap!
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Tuesday, November 3rd, 2020 AT 9:55 AM (Merged)
Tiny
BARBERRW
  • MEMBER
  • 1 POST
  • DODGE CARAVAN
1996 Dodge Grand Caravan, 120000 miles, 3.3 engine. Heater fan not blowing out air on a/c or heat. A few months ago it stopped working but started up again. Smelled a bit then stopped working for good. Now it does not blow air out at all on any fan switch position. Fuse not blown, blower works when jumped. What/where do I check next?

Thank you.
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Tuesday, November 3rd, 2020 AT 9:56 AM (Merged)

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