hey guys need help....my 01 has a 4 speed fan switch that only works in high mod, just started. is this an elec switch or vacum cuz i know i have a vacum leak some where cuz the ac works ify...goes back and forth from def to vents deppending on rpms.

 

I have a 96 so I may not know what I am talking about. After your switch there is a multi-speed resistor,easy to get to, when it gos bad all you will have is high speed. Cheap fix from NAPA.

Floyd

 

Blackimpala is correct. I have replace mine a couple times now. The resistor screws into an area near the fan and has a plug that plugs into it. When you pull yours out it will probably be either cracked or the connections broken. Stubby phillips head comes in handy. Good luck

swordfish

 

thanks i will try that

 

Swordfish, if you have to keep changing the fan resistor maybe your fan is going bad and is putting a higher load on the resistor.

Floyd

 

Thanks for the heads up floyd. I did just that after the second resistor blew in a 2 week period. Replaced the fan and the resistor has been good for about 2 months now.

swordfish

 

All good info on the fan resistor for the fan speeds however you must also have a vacuum leak as the modes are vacuum actuated with a fail safe to def. If vacuum bleeds off it will default to def. If the lines look ok up on the drivers firewall check for a rotted line under the drivers battery.

 

it only goes to def. under high rpms and ac only .... was going to do res. today but it was -44 wind chill screw that.. 50 on friday i think it can wait

 

Just got the email notification today. Must be a common thing. done a replacement many times in my dodge. It actually does not work at any speed. The rear control **** works fine at all speeds but the front does nothing.why don't you call on the dealer, give the part number and ask for a possible solution.




_______________________________________________

Standard fan switch

 

I had the same problem with my truck since I have owned it. I pulled my fan out and dust and mud fell out. The resistor also crumbled into pieces due to the bad fan causing a greater draw on the resistor. Check those parts and get back to us.

 

Thanks for sharing your thoughts man...i'm gonna check it now