It's making a loud rattling noise and my voltmeter shows erratic charging from my alternator. I suspect the belt tensioner isn't doing its job of keeping the serpentine belt tight thereby causing slippage on the alt. pulley. Appreciate any comments and/or advice on how to change out the belt tensioner.
How do I replace the serpentine belt tensioner? on 2000 Chevrolet S10
by Bwgres in Houston, TX on March 26, 2012
ANSWER by rpclements on March 26, 2012
Loosen and take off belt at tensioner first. Should be simple- only one bolt holding it. Note some tensioner bolts turn opposite of normal loosening.
the serpentine belt came loose from the assembly but did not break. I found the doughnut shaped pully had fallen off from the bearing race. It was laying down under the radiator fan. Are there two ...