is the drive belt adjustable?
At the same time I began hearing noise from the belt, I began to get a little stumble at idle. Now it gives me engine codes p01701 and po1704 which are lean full condition, and the idle very bad. In neutral coming to a stop, the engine goes down to 300-400 rpms for a few seconds then comes back to around 900 after about 6-8 seconds. Im hoping the belt is the problem? Any opinions


VR


Anyway, you have 2 belts and two tensioners... best to buy 2 new belts and replace both... that noise could be the belts, tensioner... or even the water pump. So be sure you replace only the broken parts.
VR

So my question still stands. When did the new pulley come out, and when did they start putting the new pulley on the vette.
AZC5

There is a tensioner pulley with a sealed bearing #3, and an idler pulley with a sealed bearing #8, on both the drive belt system ....and the A/c belt system its #2 and #10.. so in effect you have two tensioner pulleys and two idler pullys..
the Drive belt sytem seems to fail more than the ac belt system..
Many people replace the tensioner pulley to fix a sweaking belt.. but in reality..both the tensioner and the idler pullys shoud be replaced together..
The idler pulley has been updated with a thicker seal on the bearing.. the reason the squeak goes away for a while with replacement of the tensioner only, is because it changes the load on the idler.. but soon the idler start to squeak again..


