Hellow,
I have a 2002 Chevy Silverado 4x4 with the 5.3L
and the four wheel drive stopped working. The last couple times I took it out of four wheel and back in it made a louder thud noise than usual and I got in it today and noticed the two wheel light lit as it usually is but a red light just next to it on also, then I push button to go in four wheel high and nothing. No lights now work and it’s in two wheel. Any ideas? Thanks!