I replaced a diesel furnace with a gas furnace ( which I converted to propane). The propane gets to the gas valve but I can't get the pilot to light. I also installed a new digital thermastat I'm wondering if this has any thing to do with it not working. I guess I'm just looking for some trouble shooting points. It's a NORDYNE model MGHA-077AAFC-02.

Never mind I got it now.

My gas furnace makes a knocking noise while it is running