Dylan Pope
OBS Enthusiast
Hi guys I need some help tracking down a grinding/rattling noise on my truck...it’s a 95 z71 with the tbi 350,before I say anything let me just go ahead and say what I’ve replaced to try and eliminate this noise,I’ve replaced the belt tensior and idler pulley replaced 2 weeks ago,water pump was replaced about 8 months ago ac compressor was replaced about 4-5 months ago.My truck has had this noise since a few months after I bought it it just randomly happens when your driving and mainly when you step on the gas and the noise flutuctuates with the gas pedal so if I tap the gas the noise corresponds with it...I’m thinking it’s gotta be one of the engine accessories...alternator ect..it sounds like a pulley with bearings that are toast,the noise don’t affect the truck running it runs great and I honestly am baffled at what it may be,maybe power steering pump bearings?the pump does whine a little bit,if you listen closely in the video you can hear the noise and I know my tires are loud any help is appreciated