Moderator: volvite
smj999smj wrote:Overheating at stops or low speed conditions but not overheating at highway speeds is usually the sign of a failing fan clutch. The fan isn't spinning fast enough to pull enough air through the radiator core, but, at highway speeds, the air forced through the core is enough to cool the radiator, so the fan isn't really needed (which is the reason to employ a fan clutch and eliminate that drag at highway speeds). If you do replace the fan clutch, stick with genuine Nissan parts. There have been a lot of problems with the aftermarket replacement fan clutches.