My 2009 Nissan Murano LE has 180,000 miles. I bought it used with 170,000 miles. Now my transmission is failing. I get stuck on hills. It is sometimes scary as I have to roll back,... My "Service Engine Soon" light comes off and on. The auto repair shop says I need a NEW transmission at $4,000. Has anyone gotten a junkyard transmission and replaced it more cheaply? Not all repair shops will do that. Is it worth it? The cars interior/exterior looks good. It is just the transmission under the hood that is causing problems. How many miles more will my 2009 Nissan Murano AWD LE last? Help!