my 2002 elantra's temp control does't respond, just cold air. good for a/c usage but not when it's time for heat..been getting a hooting noise while driving which i attribute..maybe incorrectly,but it has been doing that since the temp control quit working. the car has basic manual control a/c and heat..i think this was a gradule event,all winter the heat was getting less and less....not its just ...cold. anybody have any thoughts or help?
thanks in advanced.