I always start with the basics.......fuses. Then go to bulbs...... Look in your fuse panel and see if you have one marked tail lights......and check it. the brake, headlights and signals work off another circuit.
It sound like your catalic convertor is stopped up. Unbolt it and drive it. If it runs a lot better, replace it or leave it off.
It currently when you finished running you had to stopped
Check fuses.
It does not have one after 2005 they stopped installing them
there was a recall for that .call dealr to see if you qualify
A car that is stopped with the engine running.
September 1, 1980
Im pretty sure they stopped putting them in silverados after 2003
He stopped because he is maniac.Like they can do anything.
September 1, 1980
maybe my radiator is defective
Check fuse, bulbs, and flasher relay.