Symptoms
- Hatch or trunk lid drifts downward after being opened
- May fall suddenly rather than gradually in worse cases
- Struts feel like they offer little to no resistance
- Problem usually affects both struts around the same time
Likely causes
- CommonWorn-out gas struts (shocks)The gas charge inside these struts weakens over years of temperature cycling and use.
- PossibleLeaking strut sealA seal failure lets the gas charge escape faster than normal wear alone.
- Less commonBroken strut mounting pointA cracked or broken mount can prevent a good strut from holding properly even if it's fine.
What to do
- Prop the hatch or trunk open safely with a sturdy pole or stand if you need it open and the struts have failed, to avoid it falling on you.
- Check both struts for visible oil residue, which indicates a leaking, failed strut.
- Struts are almost always replaced in pairs, since if one is weak the other is usually not far behind.
- Buy direct-fit replacement struts for your specific make and model, which typically bolt in without special tools.
- Replace both struts by popping off the retaining clips at each end and installing the new ones.
- Test that the hatch or trunk now stays open reliably through its full range before considering it done.
Tools and parts
- Trim removal tool or flathead screwdriver (for retaining clips)
Hatch/trunk gas struts (pair)Search: “hatch struts for [year make model]”
When to call a pro
This is an easy DIY job for most people; a shop visit is only needed if you'd rather not do it yourself.
Safety
Use caution
Never work underneath an open hatch or trunk held only by weak or failed struts; use a proper support rod or have a helper hold it while you work.