2007 TB 38k cranks, but no start

[Jhartwell362]

My wife went to start her 07 6cyl trailblazer, it cranks but wont start. She reported smelling burnt smell, but unknown where it came from (inside, outside, front, rear of truck), it must be a fuel issue. Going to check #10 fuse, then replace/change relay. Where do I connect fuel pressure gauge? Where do I go from here?.....Any help would be greatly appreciated.

 

[Jhartwell362]

Only 38k miles......not an ignition issue, cleaned throttle body and O2 sensor about 3 months ago....

 

[The_Roadie]

There are some good clues in the manual set you can download here: http://gmtnation.com/f23/need-service-manuals-get-them-here-371/

Fuel, spark, air.

Many times it's the ignition switch or a PCM fuse.