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Another tip I always keep my old belts in one of the compartments. If your on a trip or a cruise and the belt breaks you've got a temporary replacement. I do this on all my vehicles and it has come in handy not for me but someone in our group
and because my dumb a$$ knew better, I will be digging my old one out of the garbage :o
While you are working on your belts take about 5 minutes and inspect the electrical connector on the front of the ac compressor. I have had a belt destroy that connector on my Corvette and on a '95 Chevy Blazer. It's not a fun time when a $30 belt takes out a compressor!
Thanks all for the great writeup, replaced both belts and the write up and diagrams really helped. One thing the I did different was use a box wrench on the AC pulley tensioner. I have a 15mm where the box end ratchets (they are great) and it worked like a charm. BTW-whats with all the metrics sizes?
Taking the wife's '98 back to the service dept. for the 3rd time to fix the GD belt chirp!!! When the chirp first started about four months ago, had both belts replaced; started chirping again by the end of the day. Back to have both pulleys/tensioners replaced; started chirping again in a couple of weeks, combined with a noticeble smell of rubber coming from under the hood). After over $300 in parts/labor, what else could it be???? At wits end.
footnote: sprayed a little WD40 on the serpentine belt and the chirp goes away....for about 3 minutes!