Rethreading is the first fix to try when your machine skips stitches or breaks thread
When your sewing machine starts skipping stitches, puckering fabric, or snapping thread, the problem is usually old or incorrectly placed thread. Rethreading takes about two minutes and requires no tools. The steps are the same on most machines—the thread path from spool to needle is standardized—though you should check your machine's manual for the exact location of each guide on your model.
The most common mistake is threading with the presser foot down. When the presser foot is raised, the tension discs open to accept thread; when lowered, they clamp shut. If you thread with the foot down, the thread sits on top of the discs instead of between them, and your tension will be wrong from the start.
Key Takeaways
- Always raise the presser foot before threading—this opens the tension discs so thread can seat properly between them.
- Thread the machine from the spool pin through each guide and tension disc in order, following the path marked on your machine's body.
- The needle should be threaded from front to back, and the thread should sit in the needle's groove, not twisted.
- If you skip a guide or tension disc, your thread tension will be uneven and stitches will be loose or skip.
- After rethreading, sew a test line on scrap fabric before starting your project.
Raise the presser foot and remove old thread
Lift the presser foot lever on the back or side of your machine—the exact location varies by model. You should hear or feel a click. Raising the foot opens the tension discs inside the machine, which are two metal plates that grip the thread. This is the single most important step; threading with the foot down is why most rethreading attempts fail.
Pull the old thread out of the needle and snip it near the spool. You can leave the old thread in the guides and tension discs for now—you will pull it out as you thread the new thread through.
Place the spool and thread the first guides
Set a full spool of thread on the spool pin at the top of your machine. The spool should spin freely; if it is too loose or too tight, adjust the spool cap (a small disc that holds the spool in place). A thread that does not spin freely will create uneven tension.
Look at your machine's body. You will see a path marked with small guides—metal loops or hooks that direct the thread downward. Starting from the spool, pull the thread through each guide in order, moving from top to bottom. Most machines have two or three guides before the tension assembly. Pull the old thread out as you go.
Thread through the tension discs
Below the guides, you will find the tension assembly—usually a vertical slot or a pair of metal discs. This is where the thread is gripped to control how tight or loose your stitches are. With the presser foot still raised, insert the thread into the slot or between the discs. You should feel slight resistance; the thread should not slide through easily.
Some machines have a small lever or dial next to the tension assembly. Do not adjust this yet—leave it at the default setting (usually marked with a number like 4 or 5). You will only change tension if your stitches are consistently too loose or too tight after you test the machine.
Thread the take-up lever and guides below tension
Below the tension assembly, look for a small hook or lever called the take-up lever. Pull the thread through this guide. Below that, you will find one or two more guides leading down toward the needle. Thread through each one in order, pulling the old thread out as you go.
At this point, the thread should be hanging straight down from the last guide, about six inches above the needle. If the thread is twisted, kinked, or looped, stop and rethread from the spool—a twisted thread will not seat in the needle correctly.
Thread the needle from front to back
Most sewing machine needles have a groove running down the front and a small eye (hole) at the bottom. The thread must enter from the front and exit through the eye. Hold the thread taut with one hand and guide it into the needle's groove with the other. Push the thread through the eye until about two inches hangs below the needle.
If the thread does not go through easily, the needle may be bent or inserted backward. Remove the needle (consult your manual for the release mechanism), check that it is straight, and reinsert it with the flat side facing the correct direction—usually toward the back of the machine. If the needle is bent, replace it; a bent needle will skip stitches no matter how well you thread.
Lower the presser foot and test
Lower the presser foot lever. You should hear or feel a click. This closes the tension discs and locks the thread in place. The thread should now be seated correctly between the discs.
Cut a piece of scrap fabric about four inches square and place it under the presser foot. Lower the needle into the fabric by turning the hand wheel toward you, then sew a short line. Look at the stitches on both the top and bottom of the fabric. Top stitches should be straight and evenly spaced. Bottom stitches should look similar—not loose, bunched, or skipped. If stitches look correct, your machine is rethreaded properly and you can begin your project. If stitches are still loose or skipped, check that the presser foot is fully lowered and rethread once more, paying close attention to the tension discs.
Frequently Asked Questions
What if I still have skipped stitches after rethreading?
Check three things: the presser foot is fully lowered, the needle is not bent, and the needle is inserted in the correct direction. If all three are correct, the needle may be dull or the wrong size for your fabric. Replace the needle with a fresh one of the same size and test again.
Can I rethread while the presser foot is down?
No. The tension discs will not open, and the thread will sit on top of them instead of between them. This causes uneven tension and skipped stitches. Always raise the presser foot before threading.
How do I know if my thread is twisted in the needle?
Look at the needle from the side. The thread should run straight down the groove without spiraling or looping. If it is twisted, remove it and rethread, holding the thread taut as you guide it through the eye.
Should I adjust the tension dial after rethreading?
Not when ready. Rethread first with the tension at its default setting and test on scrap fabric. Adjust tension only if your stitches are consistently too loose (increase the number) or too tight (decrease the number) after rethreading.
What if the thread keeps breaking?
A breaking thread usually means the thread is snagged on a guide or the needle is bent or dull. Rethread slowly and check that the thread passes smoothly through every guide without catching. If breaking continues, replace the needle.