Dodge - Ram :: Blower Operate Only At Highest Speed Setting - Resistor Failed
Feb 12, 2014
2002 Dodge Ram 3500 van (engine unknown, but I think it doesn't matter). Blower operate only at highest speed setting. OK, that's the classic symptom of a failed resistor. Replacements are readily available at chain parts stores.
Where is the resistor located? This video shows me for a 2002 Ram 1500 van. Will it be the same on the 3500?
I've learned here that sometimes resistor failure results from bearings going bad in the blower, causing excessive current draw. Is there a way to test that other than with an ammeter? What's the correct current?
2a. If the blower motor is going bad, is that something we'll be able to replace ourselves? (Yes, I should tell them to get a Haynes or Chilton.) I don't like the idea of taking off dashboard panels.
2b. Is there any other "prime cause" I should look for if the blower motor seems OK?
Are there any other parts (other than the switch) whose failure would also give that symptom?
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My 2010 Expedition Limited AC seems to be stuck in the highest fan speed setting. Changing the setting on the panel control do nothing to change the speed. But you can adjust the temp and it will respond. It is a dual control unit. When I try to turn the system to off completely it will go to what I believe is the vents and stay on full blast. If I turn the truck off and on again the whole system remains off until I turn it on again. The only way to turn it completely off is to turn it to off mode and turn the truck off.
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So I have a 2005 GMC Sierra 1500 pickup that is in great condition. Recently, I have noticed that in the mornings on my way to work the blower fan would not run on the highest setting. After a while of driving, the highest setting would then work. This happened for about two weeks. Now, the blower will not turn on at all on any setting. Thought it might a simple fuse, but that looks fine. Should I take it to the shop? Could it be the blower motor that needs to be replaced?
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My A/C has been making a loud noise for a couple months now ,only when I put the A/C on the highest setting. I was LONG overdue for a cabin air filter change so I bought a new one and while I was down there I looked inside the blower motor and here's what I saw... It is now blowing fine and not making a noise . Sprayed some Ozium New Car spray on the new cabin air filter and my car is smelling great now !
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My HVAC blower switch only works when I put it on 5 (the highest setting). What needs to be replaced (besides the whole truck)?
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I have google it looked all over was told it was under the hood next to the fan even shown a photo when I went under the hood right were the resistor was in the photo there was a long black box about 4 inches long and 2 inches wide. looked nothing like the photo.
So I went back on line and read that its above the passengers feet you take a few screws off after you take the glove box off and it should be there. Well after taking 8 screws off I find nothing but a coil behind there. Nothing that looked like a resistor.
2006 f350 diesel?
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I replaced the blower motor resistor on a 2010 F150 with dual climate control where the blower was stuck on high.
After replacing the resistor, now the lower speeds work fine, but when placed on high speed, the fan completely shuts down. Replace with the old resistor, and it only runs on high.
How to proceed, or what else might be the problem?
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Installing STs on my mk6 tomorrow. Doing it in a steep driveway. want to be on the highest setting when I leave. regular v1 st coil over.
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I drive a 2012 E, and this is not about mine. It's a buddy whom has a 2013 or 2014 (I think all of the fan hardware is identical). His fan stopped working on the three lowest settings, but still blows fine on the highest setting.
Perhaps resistors knock the current down for the lower settings and they have failed? Just a wild guess....
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So compared to my old Jetta, these wipers are "fairly" slow at the highest seeting, and in a down poor at 70 mph they do not clear the windshield fast enough.
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I have a 2007 Nissan Versa and my AC will only run on the highest setting. The dealership suggested that the whole panel with AC dials needed to be replaced, they did say they were not sure this was the problem. In doing some research on the web I did see discussion regarding a Nissan Altima that had what sound like a similar problem and the fix was a part called the "blower resistor" which was much cheaper and could be fixed at home.
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I thought I wouldn't have need of the defrost for several months yet, but today we had unusually cold rain and my windows soon fogged up. The fan (not a/c) was already running at a very low setting (one or two clicks only) when I depressed the defrost button. Roughly 15 seconds later, it was like a hurricane in the cabin! The fan moved to the highest setting all by itself. This did clear the windshield in seconds, but it was a bit disconcerting. This phenomenon repeated itself all three times that I engaged the defrost button. Is the defrost supposed to do that? I swear, the sudden change startled me so much, I hit my head on the ceiling of the cabin...
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Im out of options, the guy who usually scans my car for me is nowhere to be found. I changed the blower resistor and the blower still does not stay consistently on. My next guess is a bad relay somewhere.
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Where blower resistor is located?
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2000 Alero. Wife reported to me she had no blower motor. I pulled the motor and it tested good. Next I replaced the resistor with one from auto zone. Now I have blower in all but the 5th and highest position. I suspect a bad new resistor but I left it for now because it's a pain to remove.
Could I have got a bad resistor? In my experience a bad resistor will give you high and nothing else.
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I have installed my 6th resistor and they continue to burn up, leaving #5 only.
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Front blower resistor going bad over and over? I've replaced it 4 times and it will last a few months. Then the van comes back with high blow only. There is an electrical component built into the resistor that has failed every time. I don't know if this is built-in fusible link or what. I've measured the resistance on a new one, which was basically 0 ohms, so I doubt it's a resistor, and can't be a capacitor. I've been wondering if the blower motor is drawing too much juice ( never blown the fuse ). How many amps the blower should draw. This is on a 2001 Grand Caravan Sport w/ rear ac.
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Ok, I've read about the blower motor resistor, and everyone says you should have HIGH speed on the fan.
2002 Excursion with digital display.
I turn the truck on, then turn on the blower. A small puff of air comes out then shuts off completely. I can hear the direction doors opening when i change between foot and face A/C.
Is this the blower resistor that needs changing?
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Thought for sure that would fix my fan speed, but nope. Replaced blower control module, Still only blows on the highest setting. Didn't try running it on auto, but that's what it did on manually turning the speed up. What else could it be?
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I have a 2004 pontiac grand prix gt. I read some where that some of these have the resistor and blower motor close together and that the molding or rubber that runs at the bottom of the windshield after time will leak water into the blower motor and resistor and cause a short. I believe this has been the cause of a lot of my issues with car shorting out. the other day had to have it towed for the first time in its 11 years and found out it was one of the j fuses arcing causing the car not to start.
It's already 267,000 miles.
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I'm looking for information and possible photo location for the blower motor resistor. My truck has climate control. I've looked under the dash on the passenger side and behind the glove box door and I've been unable to spot the location. Do I have to remove the plastic panel behind the glove box?
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