Ac /heater fan

fans

#1

i have 2005 chevy 4 cydendor truck the blower fan will not work when it hot weather about 80 degrese,when weather cools down it will work normal. it will work in 5 setting all the time, it’s 1234 that will not work

p.s i just spent 180.00$ at chevy dealer

they could find nothing wroung.