Chirping Noise

[chaser48]

1999 Chevy silverado 4.8 liter Chirping noise when we have cool days any one had this

problem?

[Zembonez]

1999 Chevy silverado 4.8 liter Chirping noise when we have cool days any one had this

problem?

many have had similar problem. Usually an idler pulley, serpentine belt, or tensioner. I have seen some that say the alternator was their problem. Have you replaced the belt and idlers? They are known to fail over time.

[chaser48]

replaced idler and belt