* Sway Bar Links/Bushings: These are relatively inexpensive and commonly wear out, causing squeaking, especially during turns. Inspect them visually for cracks, excessive play, or obvious wear.
* Control Arm Bushings: These bushings are located where the control arms connect to the frame. Worn bushings can cause squeaking, clunking, and other noises. Look for cracks or excessive movement in the bushings.
* Ball Joints: These connect the control arms to the steering knuckles. Worn ball joints can squeak, clunk, and create play in the steering. Check for excessive play by grabbing the tire at the top and bottom and trying to move it.
* Rack and Pinion Boots: Tears in the rack and pinion boots allow grease to leak out, leading to squeaking and eventual failure. Inspect the boots for any tears or damage.
* Tie Rod Ends: Similar to ball joints, worn tie rod ends can produce squeaking and play in the steering. Check for excessive movement.
* Shocks/Struts: While less likely to cause a *squeak* specifically, worn shocks or struts can allow more movement in the suspension, potentially exacerbating other squeaks. Check for leaks or excessive rebound.
* Brake Pads/Calipers: While usually more of a squeal, worn brake pads or sticking calipers can sometimes contribute to squeaking noises, particularly when braking.
How to diagnose:
1. Listen Carefully: Try to pinpoint where the squeak is coming from (left, right, front, etc.). This will help narrow down the possibilities. Jack up the vehicle and try to reproduce the squeak by manually moving suspension components.
2. Visual Inspection: Carefully examine all the components listed above for visible signs of wear, damage, or cracks. Spraying a lubricant (like WD-40) on suspected areas can temporarily silence the noise, helping you identify the culprit. This is a temporary fix only!
3. Professional Inspection: If you are not comfortable inspecting your suspension, take your Blazer to a mechanic for a proper diagnosis.
Important Note: Driving with worn suspension components can be dangerous. If you notice any play or excessive wear, get it repaired immediately. Don't just rely on temporary fixes like WD-40.
