My ac and heat will not turn on chevy silverado 1500

SOURCE: 2000 chevy 1500 truck stuck in 4-wheel drive

the shifter accuator or the wires going to it on the transfercase..gl

SOURCE: Heater/ac switch speeds 1 and 2 don not work in 99 Silverado

you need a resister found under your air duct by the passenger floor under dash board auto zone sells these for about 25.00 you may as well buy cabin air filters while your at it . 1 of the screws will be a pain to install back into the duct work I left mine out didn,t make a difference . you might have to order it as they are a comman item oh you will need a vacuum to clean up mess from cabin air filters .this is not a hard job .

SOURCE: Need help diagnosing codes

go to www.troublecodes.net and look up the codes.

SOURCE: 2000 Chevy Silverado 1500 The heater does not

Had the same thing happen to my truck, the blen door actuator is under the console on passenger side, but the heater core is going to be clogged if you dont have any heat coming through, but a/c works..

SOURCE: 1992 chevy silverado 1500 ,

If you turn the key and nothing happens, and you bought a new starter and nothing happens (you just wasted $80 or more) check the starter relay by taking a screw driver and touching both the posts at the same time with the screw driver. but first turn your key to the run position (or the click before you would hold it to start) then touch the realy with the screwdriver. to find the relay first follow the positive (red,or "hot") battery cable to a little box type thing probably mounted to the inside of the quarter panel on which side you battery is if still nothing somethings wrong if it starts well you know what it is then go to the parts store and pick one up.