Im looking into whether or not i need to change my glow plugs. What are the signs i should look for before i change them? Is there anything in particular that my engine will do while the plugs are wearing out? It is having a bit of a hard time starting in the morinings if thats a signs?

Im also wondering if i need to take my fuel pump off to be able to get the glow plugs out? it seems like the pump is to close for the plugs to be able to pull out.

any ideas?

Thanks,
Will.