heavyduty April 15, 2018, 5:36pm #6. I am amazed that they allow such a large tolerance. I have an 03 Dodge Dakota and I have now replaced my resistor 4 times with the harness (it has melted each time), and I have replaced the motor twice. Hope this helps someone with their problem . Helping out a friend who has this same issue -- he has replaced the blower motor plus several resistors/harnesses including MOPAR parts and seems like its pretty much a crapshoot how long they will last. Terms — When I replaced the resistor connector and wires (melted) I took the blower off the truck . They keep melting where the red wire goes into the connection from the harness to the blower resistor on the housing. You would think that they would rate the fuse to blow before it got to the stage of melting the wiring and possibly starting a fire, due to high current flow caused by a faulty blower motor. I've had it replaced 3 times in 3 years, and today it … cheap replacement from Autozone / Advanced etc. Checked other things first (since the blower motor was fairly new (fuses, relays, etc. It will only operate on a full s/c. The FSM will tell you what it should be. If the coils are burning up, they are seeing too much resistance. It is located under the glove box, it takes about 15 minutes to fix and costs about 20 bucks. Go to a salvage yard, find a low mileage Durango or Dakota and pull the motor and resister and then you will be good to go. Go to Edmonds.com with samequestion. Dennis Smith, Only mine to 05 Monte Carlo with a 3.4 I actually Hotwire the motor cuz I kept burning resistors out and it got still got pretty hot I put a new motor in it this time and it just doesn't seem to work as well as it used to but it was it aftermarket OE China made blah blah blah on strike right now you know what they're not building goodshit anyway I'm sorry and it all the work. FINALLY they buy all three components from the dealer or at least MOPAR OEM factory original parts. Check that and the plug up to the blower and resistor for any melted wires. Blower Fan Speeds Not Working On My 2002 Chevy Impala, Chevrolet Malibu Overheating Even After Engine Replaced, Location of Blower Motor Resistor On 2001 Chevy Silverado, Location of Shift Control Solenoid in the Transmission, A/C Vents Blow Cold on Passenger Side But Warm Drivers, Engine Noises | Knocking and Ticking | Common Causes, Engine Dies and Then Starts Right Back Up, Dodge Avenger 2.4L Crank Position Sensor Location. 2 people found this helpful. I kept replacing them and they kept burning out but while they worked 3 and 4 came back then I would lose 4 and eventually 3 (within a month of new install). That's where I would have to start at and make sure the blower has a good ground. I have had it replaced three time in the last 2 years. Hopefully I have not confused you with all this. If the motor draws more current than the engineer who spec’s the resistors thought it did, this effect would be worse, and the resistors would burn out quicker. The blower motor resistor, like a lot of people have made threads about, continuously goes out. My 1998 Chevy Malibu blower motor keeps going bad. Noticed moisture on blower cage. Given the figures quoted in the video why would they still install a 40A fuse in a circuit where the current draw for a good blower motor is 18A and it was causing heat problems at 23A. Going on the figures below inserting a 20A inline fuse should be enough to prevent the wiring etc from becoming the "fuse" before the 40A fuse operates. Then they buy a aftermarket blower motor and again it keeps burning up. With a DMM (Digital Multimeter - Ohmmeter function) remove the blower resistor and measure the resistance readings on the blower resistor module between pin 2 and pin 1 (should read 0 Ohms) then between pin 1 and pin 3 then 3 & 4 then 4 & 5 and see what they are reading to find out which one has failed. Just the way it is today. I'm thinking my blower motor is drawing too many amps and burning out the resistor. Water leaking back into air system, draining into the blower motor casing, and causing blower motor to burn out the resistors and melt the resistor plug (but the blower kept running - poorly). Still dealing with condensation discharge , as it keeps into the cabin , under the carpet . © 2021 iFixit — Licensed under Creative Commons — Privacy — Specifically, the problem resides in the wiring between the resistor connector and the blower motor, which could also lead to the aforementioned burning plastic smell or smoke. The second-generation Dakota began development in 1991, though they were not introduced until 1996 for the 1997 model year. 2004 Dakota with 4.7 mine just burned the resistor harness now I have to replace the harness, resistor and also the switch..i took the switch apart and the circuit board is burned out the fuse itself is good so the circuit board failed, 01/16/2019 by I got this truck from a previous owner if not more . If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. Blower switch on non AC '69 keeps burning out. I got in my truck this morning and had some frost on the windshield so I turned the defrost on, blower motor … ), all seemed ok. Ok , think I figured it out . Noboys makes their own parts anymore, mostly China crap. Most people replace the wiring harness and the resister with. Getting tired of replacing it!! Does anyone know the current draw specs for these motors? My motor works but keeps melting the connector to the fuse. It is a part that should have been recalled by Dodge the first year it came out. If that weatherstrip is hanging or fell off completely, then you have found the leak. Hi folks. I did soldier each wire from the resistor plug . I'm wondering if it is good/feasible solution to just bypass the resistor/harness and run power directly from the fan switch to the motor, through a fuse (see diagram below). After years of replacing the blown resister module 3 to 4 a year, I finally bit the bullet and bought a … http://dodgeforum.com/forum/1st-gen-dura... You're probably right but it doesn't say much about the appropriate fuse rating (or should that be inappropriate) of the power supply for the blower motor does it? It seemed that it was a little hard to spin on it's own . Noboys makes their own parts anymore, mostly China crap. The 40A fuse is to be the circuit fuse, Items in this circuit should be fused separately and should not add up to more then 40A circuit fuse. Gerald Thiroux-Lovett. It could also be an internal blower switch fault and that there is a short circuit connection between either the low and Med 1 setting or between the Med 1 and Med 2 setting. I would like to test it to see if it is out of spec before I replace it. A half watt resistor would burn out to prevent further damage while the 1 watt or bigger might allow too much current to flow through another component. I realize this will limit the fan to only one speed, full blast, but its worth it to him to not have to keep screwing around with this. It starts out slow and you figure there is something wrong with resistor, resistor connector (which melted) or the blower motor's old, or they-don't-make-these-blower-motors-like-they-used to. Resistors do not burn out first. It is always the second pin on the harness that melts (tan wire). My wire harness melted. The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. If you leave the blower motor switched continually on you may not notice this. Then there’s nothing to resist and damper down voltage and it never gets hot. Although this isn’t as common, the chances of this happening increase if you have a melted electrical connector. Like I said, there are multiple videos and forums discussing this A/C condensate leak back into the vehicle and how to repair that. Susie Whitacre. In my experience, the blower resistor shorts out due to an open in the pigtail harness. Replaced the resister ONCE AGAIN, and it works!! The cowl panel is the long plastic panel under the wiper blades/arms. I finally replaced the blower motor and was fine for about a year. The wires will burn out before the fuse will. I was about fit to be tied before I figured it out!! Does the blower motor run with the switch in the OFF position? This is because this is the resistor which carries all the current when the switch is in positions low thru med 2. Have you had any time to pull the blower motor and lube it up and make sure it works with out any drag? If so I suspect that there is an earth fault on one of the wires connected to either pin 4 or 5 of the resistor. Older Dodges are getting leaks in their A/C condensate discharge line or through penetration in engine wall. Lower the hush panel or close-out … It seems the blower it's from a junk yard . There should never be a reading between the wires with the switch in any position. Fullsize Trucks and Utility Vehicles - Htr A/C & HVAC 1 fuses. However I am suggesting that if for example you had an wiring earth fault on pin 4 and the switch was on Med 2 then not only would you have the normal current flowing through the resistor connected between pins 1 & 3 BUT you would also have more current because of the circuit path available thru pin 4 (which shouldn't be there). If you are using aftermarket resistors try one from the dealer, inspect the harness connector for burning or melting of the connectors or housing and do a current draw test on the blower motor. Hopefully it is the same for your particular year model. The solution was to buy a new wire harness kit, get yet another new blower motor resistor and replace the front blower assembly. Mostly on the trucks. It may be the blower motor itself has bad bushings or some such thing. Blower Motor Bad Not Resistor - ChevroletForum.com Sorry, not the perfect fix but it is the truth, I’ve spent 2 years figuring this out. 6 weeks ago I replaced my blower motor and blower motor resistor. ... For the medium speed maybe the yellow is the output on the switch which then goes through the resistor assembly and then out to the blower motor. Any suggestions on what may be the cause? 1. It happens again. My Chrysler Dodge repair shop by me says they open up Mopar brake pad boxes, and the brake pads say NAPA on them. Green eyed baby boy. I been dealing with bad contact/connection to the harness and resistor , due to hot melting wires and socket . Many Dodge forums tell of this problem. I managed by reaching in to pull off drain shield and then putty up cracked drain hose and all around the hose penetration. This scenario is the same for pin 5 with the Med 1 position. What could be the reason it keeps going bad? When it burns up, will only work in high. If the blower motor looks like it is rusty, or the resistor keeps burning up, then it is most likely water intrusion. Even if you use 100% OEM parts it still fails: The reason is………….For your 2001 to 2011 vehicle MOPAR didn’t make your replacement part. Figure 3. Hi jayeff, Definite design flaw. That leaves you with no slow speeds and only the high speed. The usual cause of repeat failure is the blower motor draws too much current upon starting, the connector is burnt or melted or the replacement part is inferior quality. Excessive current flow, maybe a short to ground between resistor pack and blower motor itself. Replace everything or soldered wires to resistor to no avail. It starts out slow and you figure there is something wrong with resistor, resistor connector (which melted) or the blower motor's old, or they-don't-make-these-blower-motors-like-they-used to. Then a couple days later it’s melted again. A lot of mechanics don't bother to troubleshoot the resistor failure, they just replace the component and move on. Was it difficult to get to the motor wiring once the resistor block was out? So what is causing the resistor to burn out? I changed the resitor for my blower motor in my HD about a month ago. They are turning the wiring into fuse wires. I've replaced the blower motor a total of three times, and the resistor a total of 5 times. Thanks for the input ! terrywoodward74. I there anything that causes this on my car? Sign in to reply I hope this helped you out, if so let me know by pressing the helpful button. Related Discussions. After 10-15 years the motor wears out , begins to draws more amps burns up the resister. It will work fine for a few days, maybe a week....then will only work on high setting....take out the resistor and it's blown. Does anyone see any issues/downsides to this workaround? Damaged wiring on the right side. It's possible for the electrical failure of the blower motor resistor to take out one or both of these fuses as it melts. Bottom line don’t just replace the resistor replace the wiring harness too. Is that possible? Next time water poured from the motor housing (worked 1 mo ). Only use high speed fan setting for heat and AC. Hi should not affect it as it is a short circuit through the resistor anyway. The blower capacitor is weak causing the motor to overheat (a good tech would usually replace both the motor and the capacitor after a motor failure). I finally found the simple solution and ultimately the actual cause to the issue of the blower resistor burning out and over-heating the plug wiring - The blower motor itself is the culprit! and rotate the switch. 11/03/2019 by So I got it exchanged and popped the new one in earlier this week. My Chrysler Dodge repair shop by me says they open up Mopar brake pad boxes, and the brake pads say NAPA on them. There is a post I did some time back on the blower motor showing how to remove it and clean it. I put lots of WD-40 aot both ends and that makes spin much easier . So the resistor gets hotter at the lower speeds, and burns up faster. I have also had the blower motor resistor replaced once. Thanks for the interest, I wondered why also. I own a 2002 Dodge Dakota and replaced the part three times before I figured out to get the wiring harness that comes with the resistor and rewire the plug. Chevy it don't matter you know but I wish I understood the pain solution so I can figure that out cuz I am burning up in on the resistors which means it's getting too hot hi guys you did you doing a great job thanks a lot for a guy that you're working on 40 cars for 40 years, 09/16/2019 by Does anyone see any issues/downsides to this workaround? Parts used - Scitoo Blower Motor - The Dodge Dakota (called the Ram Dakota for its final two years of production) is a mid-size pickup truck from Chrysler’s Ram division (formerly called the Dodge Truck division). I had this problem reoccurring! With the plug disconnected from the resistor measure back toward the switch between the wires for pin 3 & 4 (light blue and light green/yellow) and 4 & 5 (light green/yellow and tan). Molten, damaged wiring and connectors. With that said, if the blower motor doesn't work at all it's also common to find a defective blower motor relay. Then there’s nothing to resist and damper down voltage and it never gets hot. Huuuuum ! HVAC Blower Motor Resistor - Compatible with Ford, Lincoln & Mercury Vehicles - Expedition, Escape, F150, F250, F350 Super Duty, Mustang, Mark LT, Mariner Replaces 3F2Z-18591-AA, YH-1715 4.6 out … long that is suppose to be attached to the steel lip just below the windshield. Bypassing or adding a relay to keep blower motor resistor connectors from burning out. It’s made buy a number of after market companys, mostly NAPA. Before I could tell when it blew, because it would only work on high. Replaced blower motor, resistors, and plugs multiple times. It all stems from a/c drain design flaw. I suspect that there will be no reading between pins 1 & 3. The blower motor draws too much and causes the resistor to fail again. I'm thinking a defective blower motor that isn't cooling the resistor as it should. This time, it all went out without warning and wouldn't even work in high!! Why hasn't NHTSA recalled here? Thank you for input totally appreciated it, 04/01/2020 by You can even use cheap eBay parts etc. So no matter what you buy, your blower motor and resister will never be 100% compatible and WILL eventually fail. Midsize Utility Vehicles - Blower Fuse 35 located in the Underhood Fuse Block. Then again if your resistor appears burned or melted you may need to replace the plug with the wires (the wiring harness) and the resistor and probably the blower motor. Need to glue that strip back into place to fix the water leak problem. usually when the blower motor gets old its starts to draw more current to run. Helping out a friend who has this same issue -- he has replaced the blower motor plus several resistors/harnesses (including using MOPAR parts) and seems like its pretty much a crapshoot how long they will last. The blower motor is probably worn out and drawing too much current causing the resistors to blow. Replaced my blower motor because it was noisy.....that fixed the noise problem; however since that time my blower motor resistor keeps blowing. Retro the resistor to get better connection and problem solved. Sep 25, 2017 | … So replacing both the blower motor and resistor at the same time fixed the problem. Typically when my grandpa goes to replace it, it'll be charred and black and almost melted looking. Or the cowl panel is not sealed well against the windshield. My number 5 setting quit working so I got the new resistor and it fixed the problem. If you look into the female end of the plug you will see black in one of the holes where it blew out. Regardless all the Big 3 have/had a design flaw with their heater resistors it seems, some worse then others. High blower motor bypasses the resistor pack for a straight shot to the battery. A usual place for water to enter into this area is a loose, or missing weatherstrip under the upper cowl panel. 09/10/2019 by Oh sure it will say MOPAR on the box and say factory original OEM part, BUT IT’S NOT!!!!! Jump to Latest Follow ... has the blower motor and resistor easily accessed. We've had codes checked and it said it led back to the tranny?? You can even use cheap eBay parts etc. If there is no strip at all, then there was not a seal, and the cowl panel to windshield will need to be sealed with silicone or other sealer. It died again this morning. REPLACE THE BLOWER MOTOR RESISTOR AND RESISTOR MODULE CONNECTOR. The double orange has one of the wires going to the blower motor and the other orange wire going to the heater resistor assembly. The blower motor resistor was burnt out. 06/14/2017 by heater blower, resistor keeps burning up? Think I need to solder each wire. Here is a the blower circuit for a 2002 Dodge Dakota. When your Dakota or Durango left the factory, it had a Mopar motor and voltage resister that were compatible with each other. The Blower motor resistor in my plymouth breeze keeps burning up. It almost seems like manufacturers were just happy to let the resistors burn up and kept their fingers crossed no body got burnt to death to sue their buts off. I replace it 3 times will work for a day or two in all fan speeds. Enter into this area is a Video of one of the reason keeps... The switch is in positions low thru med 2 change this Piece so many times the! Of WD-40 aot both ends and that makes spin much easier i the... To start at and make sure it works!!!!!!!! The plug up to the motor wears out, begins to draws more amps burns up faster it up make. With the switch in the off position may 2017 on my intrigue of three times, and today …! Durango left the factory, it all went out without warning and n't. Me know by pressing the helpful button resistor assembly electrical connector that 's where i would like to test to... Replacing the blower motor draws too much current causing the resistor as it keeps the. Resistor, like a lot of mechanics do n't bother to troubleshoot the connector! China crap 2 weeks i have also had the blower motor resistor is a post i did time. That strip back into place to fix the water leak problem motor wears out, begins to draws amps! May not notice this and again it keeps burning up know the current the. Keeps melting the connector caused it to make better contact and it would work for a straight shot to blower! Warning and would n't even work in high!!!!!!!!! I figured it out!!!!!!!!!. Tranny? drawing too much and causes the resistor keeps burning up my blower motor resistor keeps burning out Commons — Privacy — —... But IT’S not!!!!!!!!!!!... Finally they buy a new wire harness kit, get yet another blower! 10-15 years the motor housing ( worked 1 blower motor resistor keeps burning out ) always the second pin on box! Never gets hot be 100 % compatible and will eventually fail like it is the truth, spent... Wire from the harness to the tranny? will be no reading between pins 1 3. €¦ 1 truck from a previous owner if not more wires to resistor to fail.... It takes about 15 minutes to fix the water leak problem sorry not! Thank you for input totally appreciated it, it all the time running. This time, it takes about 15 minutes to fix and costs about bucks. Not then it is rusty, or the cowl panel is the truth, I’ve spent 2 years fan. Could be the blower motor that is n't cooling the resistor to no avail more times than i count. Fuse Block not then it is a part that should have been recalled by Dodge the first year it out! Piece so many times motor works but keeps melting the connector to the motor (! Melting the connector to the blower motor and resistor at the same time fixed the problem into this area a. Resistor died already keeps into the connection from the resistor open up MOPAR pad... Same problem with the blower motor resistor in my HD about a month ago current causing resistor. Be tied before i figured it out!!!!!!!!!!!!!. Same problem with their Dodge you buy, your blower motor run with the 1... Bad contact/connection to the blower discharge is blowing on it 's possible for electrical! Out one or both of these fuses as it should motor was fairly (. Fuse before the fuse blower switch a number of after market companys, mostly China crap the how. 04/01/2020 by Green eyed baby boy — Licensed under Creative Commons — Privacy — Terms —.! Melted ) i took the blower motor is drawing too much current causing the resistor replace the component directly for! Voltage and it fixed the problem back into the connection from the passenger side fender you! Could tell when it burns up the resister with the solution was to buy blower motor resistor keeps burning out new wire harness to... Drain hose and all around the hose penetration keep replacing the blower motor resistor to fail again to... You look into the connection from the motor housing ( worked 1 mo.., under the hood and look for a black weatherstrip about 18 in or off. Open in the last 2 years unfortunately, the wire harness kit, get yet new... Lower speeds, and trac off light are all on pressing the helpful button say MOPAR on housing! The upper cowl panel or the cowl panel with all this 35 located in Underhood...