electrical problem

[85mudder]

I have an electrical problem. My windows and heat/ac blower will only work when the truck is not runing i cant figure out why as soon as i start her up the windows wount work and the blower shuts off , any ideas

 

[Big89Burban]

Only thing that comes to mind is a bad ign. switch. I dont have a manual handy to be able to tell but those two are both "key-on" power so thats what I would be looking into. Check all the other accesories that are key-on and see if they work or not. If they dont then everything about that says ign. switch to me.

 

[randy88k5]

I would second ignition switch. Could be not adjusted properly. Does everything else work though? Do all the accessories work in key on engine off? Does everything else work in key on engine running? Use a test light or voltmeter to see what is really going on. Let us know what you find...

 

[85mudder]

thanks for your help i just got back from rooten and they work fine but earler today they came and went some times worked some times not working every thing else works radio, lights, gages, i will look in to the ing. switch tomorrow thanks agin

 

[randy88k5]

I would look into the direct power source to the units also. Could be as simple as a loose wire. Also check the grounds. Use a continuity tester to make sure they are recieving a good ground.