[quote:a952f1fc1d="wcous2"]Engine Cooling problem
2006 Nissan Sentra 4 cyl Front Wheel Drive Automatic 42000 miles
Speaking to a simple minded person, how tight are the belts suppose be?[/quote:a952f1fc1d]
Hello,
If it is a 2.5L engine there is a tensioner assembly and the tension is adjusted automatically. However, there is a possibility that the tensioner is bad. Also, if you are hearing a squealing noise from your belt it is also possible that the tensioner pulley bearings are going bad. One way to find out is to take a can of wd40 or similar and with engine off spray center bolt of tensioner, start vehicle if squealing is gone for short period then replace pulley.
If it is a 1.8L engine it has an Idler pulley and same could be wrong with it as far as the bearings. do the same test as above to check bearing.
.
Feb 3, 2009 at 5:58 PM