You surely must have a reduced power light showing on the instrument panel? Go to a dealership and get the code read from your PCM. Some places like Autozone will do that for free.
There are several things that can cause your 2004 Chevrolet Trailblazer to idle rough. The most common causes are a dirty fuel filter or a dirty air filter.
Your 2003 Chevrolet trailblazer radio probably cut though because of a loose or corroded ground wire. The positive wire may also be loose.
what causes a 1.8t golf to jerk especially after the engine being hot
The dash cluster is defective. New about $400 used $100 up. Takes about 1 hour to change. One mutiplex socket connection.
Check the catlytic converter for blockage
Front hubs my be wearing out.
A/C compressor not running
The correct answer is : drinking and driving
sticking thermostat, fan clutch or waterpump. all have tell tale signs.
Alternator is failing.
suspension
I think that's where the spare tire is kept, that where mine was.