Nissan Frontier Forum banner
1 - 1 of 9 Posts

· Premium Member
3,928 Posts
"FSM" means "Factory Service Manual." If you do some Googling, you should be able to find a downloadable copy. has free, downloadable manuals at their site.
The heater core replacement is a pretty big job on these. The entire dashboard needs to be removed to access the heating and cooling unit. I'm pretty sure the air conditioning system will need to be evacuated and later re-charged.
1 - 1 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.