My 2002 blazer zr-2 is having a massive suspension squeak issue, from what I can tell it is squeaking in the front and back on both sides, when I hit the brakes, come off the brakes, go over a bump, and even if the wind blows too hard.

I need to know what to do and how to do it, I'm fairly new to working on any vehicle so any help would be greatly appreciated.

Please help me before I go deaf from the ear piercing squeaks!

 

Have you checked the shocks? Try standing on the rear bumper and "jumping" up and down. You want to load the suspension. The truck should return to ride hight and it should feel "stiff". If it feels spongy its time for shocks. You can do the same with the front end, by pushing down on the hood or finders. If your not light in the seat. I'm 215 so its easy to get the suspension to rock up and down this way.

 

I'm having the same issue with my 2001 zr2. I replaced all four shocks. The squeaks are still there, but it rides great!!

 

grease your arms and ball joints hopefully that will fix it

 

Put any lubricant in a spray bottle and hose the whole thing down. Not much more you can do besides that. After installing my add a leaf it squeaked like crazy too. Kinda quieted down after the winter and time.

 

when i added a leaf i coated it with grease . it was kinda messy but better then havein that squeek

also make sure you dont lube your brakes hehe

 

I have a '96 Blazer S-10 with a very loud, annoying squeak while driving; going over bumps or driving on any dirt road, etc., etc. It was really hard to detect what was causing it while I was in the driver's seat; couldn't tell at all where it was coming from. Had to have my wife drive the car while I scooted around in the back with the windows open to try to see if I could find it. Turned out it was coming from inside the tailgate. Unscrewed the panel and jammed some hard foam rubber into the squeaky area to tighten it up in there. Doesn't squeak anymore...for now. Sounds like your problem is under the vehicle though.

 

A squeek can be from damn near anything. Body panels, loose bolt on a bumper or body panel. Fender well liners, any aux. items you've added that have interference where they were placed. Any & all suspension components, check for proper grease at all the grease zerks/nipples (should be 14 I think). You say even in a strong wind, again bumpers or maybe the roof rack or components of it. Rear windows/hatch are well known for squeeking, clean it & put a thin layer of vasoline on the rubber seal. Hinges at the doors or hatch. <---- Enough to go over & check? lol
Personally I'd try 1 thing at a time because I'd always want to know wtf was bothering me so much AND I'll know where to go back to if it happens again.
A rattle I had was super annoying & I couldn't find it. It sounded like it was from under the dash & I took it all apart in the area it was coming from. Turned out to be the hood hinges' convex washers had worn out on the PS. They're mounted under the cowl & the sound radiated so it seemed like it was coming from under the dash. How odd is that?