2007 outlook xr,3.6 had a rattling/ticking noise under the hood, oil was not low,just stopped running, now it turns over, won't start, and back fires through intake/throttle body?

What is your question?

2007 saturn outlook xr,3.6 vvt engine was running smooth, a rattling/ticking noise under the hood, just stopped running, now it turns over, won't start and backfires through the intake manifold/throttle body? How do you?.check the timing? Kip OP

How long has your 2007 Saturn Outlook had this problem?

I only had it about 3 months