2006 Chevy Silverado cranks over but won’t start. Has spark, fuel pressure, compression. I am lost as to what is causing this. Never had issues with it running rough, shut it off and just wouldn’t start again. Checked the timing and it is fine too. Sprayed starter fluid in the throttle body and cranked it and it came real close to starting but still wouldn’t. Anyone have suggestions on what I can try next?

 

^ I have also already replaced ignition control module, ignition coil, and distributor cap & rotor with no luck.

 

Have you actually measured the fuel pressure? If not, please do so and report back

 

yes, fuel pressure is about 60 kPa

 

Check the exhaust backpressure

 

I believe things like TPS and MAF could fail and cause a problem. I think unplugging them (one at a time of course) may allow it to run in kind of a "safe mode" or "limp mode", but that could vary by make and model. I'd try that next, that's probably the easiest test to try next.

 

Check the compression, it could be a timing chain.