Should I fix my car or junk it?
Two BLS series, one comparison nobody publishes: what repairs cost against what cars are worth. The rules of thumb were calibrated for a market that no longer exists.
The short version
Everyone answers this question with a rule of thumb. Do not spend more than the car is worth. Do not spend more than half. If the repair costs more than a year of payments, let it go. The rules contradict each other, and every one of them assumes the two numbers involved — the price of the repair and the value of the car — have been drifting in the same direction. They have not, and the divergence is larger than most people selling a car realise.
What actually changed
The Bureau of Labor Statistics publishes a monthly index for motor vehicle maintenance and repair, and another for used cars and trucks. Set both against December 2019, the last clean month before the pandemic distorted everything, and read them at July 2026:
| Since | Cost to repair | Value of the car | Gap |
|---|---|---|---|
| December 2019 | +53.6% | +28.7% | +24.9 pts |
| December 2021 | +41.7% | -14.8% | +56.6 pts |
The second row is the one that matters. Since the used-car market peaked at the end of 2021, repair costs have gone up 41.7% while the cars themselves have gone down 14.8%. Those two lines are travelling in opposite directions, and the space between them — 57 points in under five years — is the reason a repair that was obviously worth doing in 2021 can be obviously not worth doing now, on the same car, for the same fault.
This is not a claim about your quote. It is a claim about the arithmetic everyone is doing in their head, which was calibrated in a different market.
The comparison that actually decides it
Forget the rules of thumb. There are only two numbers, and neither of them is the repair quote on its own.
- What the car is worth fixed, in your hands, today. Not what you paid, not what the model sells for at a dealer — what a private buyer would hand you for it running, in its actual condition, with its actual mileage.
- What it is worth broken. This is the number people skip, and skipping it is what makes the decision feel impossible. A car that does not run is not worth nothing: it is worth its metal, its catalytic converter and its usable parts, and that floor is real money. What a junk car is actually worth takes that number apart.
The repair is worth doing when it costs less than the difference between those two numbers. Not less than the car's value — less than the gap between running and not running. A $1,400 repair on a car worth $3,000 running and $600 broken is buying $2,400 of value for $1,400, and that is a good trade. The same repair on a car worth $1,800 running is not.
Four things that quietly change the answer
The second fault. A car old enough to need one expensive repair is old enough to need the next one. Ask the shop what else they saw while it was on the lift — not for a quote, just for a list. A timing belt quote on a car with a weeping rear main and two tyres at the wear bars is not a $900 decision, it is the first instalment of a $2,500 one.
Whether the fault is the kind that fails an inspection. In a state that tests, some faults are not optional at any price, and others are covered by a repair-cost waiver once you have spent a set amount trying. The thresholds vary enormously by state and change the maths outright: emissions repair waivers by state has them.
What it costs you to be without the car. Two weeks of rentals or rideshare while a part is on backorder is a real cost that never appears on the quote, and it is often the largest single number in the decision.
Whether you would trust it afterwards. A repaired car you will not drive to another state is worth less to you than the same car with a clean bill of health, whatever the invoice says. That is not sentiment, it is the actual utility you are buying.
What the data cannot tell you
An index is an average across the whole country and the whole market. It cannot price your gasket, in your town, at your shop. What it can tell you — and this is the part worth carrying — is which way the ground has moved. Repair labour and parts have risen faster than the things they are attached to, consistently, for years. A decision that felt marginal is more likely to fall on the sell side than it was the last time you had to make it.
Sources
- BLS CPI — motor vehicle maintenance and repair (CUSR0000SETD) — seasonally adjusted, monthly; public domain
- BLS CPI — used cars and trucks (CUSR0000SETA02) — seasonally adjusted, monthly; public domain
Citing this page
Two published BLS series, compared like for like on the same seasonally adjusted basis, both current to July 2026. A suggested citation: “What repairs cost against what cars are worth,” Sell My Car Hub, sellmycarhub.com/guides/fix-it-or-junk-it/, data as of 2026-08-28. The comparison may be reproduced with a link to this page.