My FIL just acquired a 2002 Frontier with the 2.4L engine. It has 290k miles and doesn't want to start.
Pulled codes, saved codes. random misfire and egr valve stuck P1402 I think.
Check fire. it's good, checked fuel, it's good to go. here's where it gets interesting. Check compression. 0psi across the board. Pulled valve cover to see if timing chain broke. Nope it's still good, but the oil looks slightly milky.
I didn't get to do a leak down yet, but it seems like it may be a head gasket causing the issue. I forgot to add, the oil i slightly milky. That' what's is steering me towards a head gasket also.