Most common in these trucks is a dirty throttle body. We have removal and cleaning instructions at our forum. www.trailvoy.com
What would cause the engine not to restart when hot Chevy Trailblazer 2007?
It is important to have a well working car while on the road. The lack of fuel getting to the engine would cause hesitation on acceleration,
Hesitation can be caused by several things: 1. A faulty throttle position sensor might cause hesitation. 2. A faulty MAP or MAF sensor might also cause hesitation. 3. A problem with the engine control module might cause hesitation.
Torque converter going bad.
Could be timing belt/chain is worn
Could be, (assuming the starter is not cranking the engine) a bad starter, dirty or loose battery connections, the engine is seized.
Come to our Trailblazer enthusiasts forum and find your answer www.trailvoy.com
accelerator pump inside the carburator
have your timing checked it sounds like it out
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.
Biggest problem I can think of is if they somehow make it past your air filter and get back to your throttle body. May cause rough idle, low idle, hesitation, etc. I would think it would take a lot of leaves to really cause a problem, though.
Probably a faulty ignition switch. learn more at www.trailvoy.com Trailblazer enthusiasts website.