just last weeky air was blowin ice cold and heat worked great, now nothing, nothing comes out of the vents and all three knobs on the control panel do nothing. im thinkin something electrical possibly fuse relay or what? any help would be great

96blackcloud's Sig:

[SIZE="1"]96 CTD, NV4500 Swap, Ceramic Valair Single, MBRP 4in to 5in straight pipe, AFE stage 2 filter,box,torque tube, modified p-7100, boost elbow, silencer ring MIA, Primelock fuel filter relocate, coolant filter, upgraded hogden electric clutch fan, 3 gauge pillar, boost,egt,tranny, 3in suspension lift w/ 33/12.5/16 hancook M/Ts, 2003 fx4 6.0- stock built 47re 4sale, lowstall converter,vbody,billet deep pan, shift kit.

check for vacume leaks, under the dash and under the hood.

392hemix's Sig:

97 Dodge Ex-cab, 4x4, 12 valve, AEM intake, stock HX35 turbo with bd boost elbo, AFC washer flip barrel ground .090, #0 plate full forward, 4K GSK,stock timming@14degrees, 4'' straight exhaust...47re auto, deep TCI tranny pan, billet torque converter, 3:54 gears,35'' tires

max torque 728.71

max hp 312.67

04.5 dodge 4x4 3500 reg cab 6speed straight piped s&b intake 2'' level kit 35''tires

If it was just a faulty HVAC switch or vacuum system you should be getting air through the defroster vents and the floor vents when the fan motor is running. Start checking your fuses first but if they're all good, you can test the fan motor fairly easily. The motor is on the bottom of the passenger side of the dash, so just unplug the motor and put 12 volts to it and see if it works.

zjohnsonua's Sig:

1995 Ram 2500 12v 4x4 auto (stock 47rh ) burning 70/30 to 60/40 mixture of ULSD/used ATF with ZERO harm done after 60k miles; KDP tabbed; stock plate/AFC full forward; Jacobs Rambrake; trailer brake controller; 200W back-up lights, Isspro pyro and boost gauges; straight pipe exhaust; on-board air

mine quits once in a while,,,,I jus tap the fan motor on passenger side and it gets again again,

soupdog06's Sig:

95 dodge extended cab, 4x4, 5 spd, dually, 4 inch exhaust straitpiped, huge deer slayer on the front,
91 4x4 xtended cab 7.3 slower than sh%$*!!T non turbo, 5 spd straitpiped flatbedded brand spankin new CD Player, she's slow but'll ventually getchu there
farmall 856 diesel (my lil bale hauler) luv em all cuz they are diesels

thanks guys ill check the blower fan, i think the control switches still work cus if i turn the switch to cold air the idle still comes up a bit and my electric fan clutch kicks on. thank god its not winter here or it would really suck even though i drive with my window down all year round hahaha

fixed, turns out the hard wired in alarm system that i disconnected is in control of alot of things got a new FOB plugged her back in and good to go