* Broken or worn-out coil spring (or torsion bar, depending on your van's suspension): This is the most common cause. A broken or significantly weakened spring will allow that side of the vehicle to sag.
* Worn-out shock absorber (or strut): While shocks/struts don't directly support the weight, their deterioration can contribute to a leaning posture, especially when combined with other issues like worn springs. A worn shock allows the suspension to bounce excessively and settle unevenly.
* Worn ball joint: A ball joint connects the steering knuckle to the control arm. Excessive wear can lead to suspension instability and uneven weight distribution. A failing ball joint might also make noises or cause handling issues.
* Worn control arm bushings: These bushings connect the control arms to the vehicle frame. Worn bushings allow excessive play in the suspension, which can lead to a lean.
* Damaged or broken suspension components: This is a broad category that includes various parts like tie rod ends, sway bar links, etc. Any damage or breakage in these components could affect the suspension's balance.
* Uneven tire pressure: While less likely to cause a significant lean, significantly lower tire pressure on the driver's side compared to the other tires could contribute.
* Overloaded vehicle: If the van is heavily loaded on the driver's side, it could cause a temporary lean.
What you should do:
1. Check the tire pressure: Make sure all tires are inflated to the recommended pressure (found in your owner's manual or on a sticker inside the driver's side doorjamb).
2. Visually inspect the suspension: Look closely at the springs, shocks/struts, and control arms on the driver's side. Look for any obvious signs of damage, such as broken springs, leaking shocks/struts, or loose/worn parts.
3. Check for leaks: Inspect the shocks for leaks.
4. Take it to a mechanic: If you don't see anything obvious, or if you're not comfortable inspecting the suspension yourself, take your van to a qualified mechanic. They can diagnose the problem accurately and perform the necessary repairs. Safety is paramount; driving with a compromised suspension is risky.
Don't drive the van extensively with a noticeable lean, as this can lead to further damage and potentially unsafe driving conditions.
