Timing belt replacement: cost, interval, and signs
A timing belt replacement usually costs about $600 to $1,400 at a shop, according to Consumer Reports, and most carmakers call for it somewhere between 60,000 and 120,000 miles. The exact interval is in your owner’s manual. Don’t skip it: on many engines a broken timing belt can badly damage the engine.
On this page (11 sections)
The short answer
| Question | Answer |
|---|---|
| Cost | About $600–$1,400 (Consumer Reports); more on some V6 and V8 engines |
| Interval | Usually 60,000–120,000 miles; your owner’s manual gives the number, and some schedules add a time limit in years |
| Warning signs | Often none. A belt can break without warning, so replace it on schedule |
| Timing chain instead? | Most chains have no fixed replacement interval; they are replaced when worn or noisy |
What a timing belt does
The timing belt is a toothed rubber belt inside the engine. It turns the camshafts in step with the crankshaft, so the valves open and close at the right moment as the pistons move. It sits behind a cover at the front or side of the engine, so you can’t check it at a glance, as you can with the belt that runs the alternator.
That outside belt is a different part: the serpentine belt. It is cheaper to replace and easy to see, and a worn one usually gives warning signs.
How much a timing belt replacement costs
Consumer Reports puts a timing belt replacement at about $600 to $1,400. The price is mostly labor: on many engines the mechanic removes engine covers, accessory belts, pulleys, and sometimes an engine mount to reach the belt. What moves the price:
- The engine. A transverse V6 usually takes longer than a small four-cylinder.
- What else is replaced. Shops often quote the belt with the tensioner and idler pulleys, and with the water pump on engines where the timing belt drives it. The labor overlaps, so doing them together usually costs less than doing them on separate visits. Ask what the quote includes.
- Labor rates. Dealer and independent shop rates vary by region.
Get a written estimate for your car and engine before the work starts. If the quote is far outside the range above, ask the shop to explain the extra parts and hours.
When to replace the timing belt
Replace it at the mileage (or time) in your owner’s manual, whichever comes first. Most makers set it somewhere between 60,000 and 100,000 miles, according to AAA, and Consumer Reports gives a wider range of 60,000 to 120,000 miles. Some schedules also list an age limit in years, because rubber ages even when the car sits. If your car is used for towing or in severe conditions, the manual may list a shorter interval: see normal vs severe maintenance.
Buying a used car with a timing belt? Ask for the receipt that shows when it was replaced. Consumer Reports advises checking that it has been done before you buy, or factoring the cost into the price. With no receipt, plan as if it had never been done.
Signs of a bad timing belt
A timing belt often fails with no warning at all, which is why the schedule matters. When there are signs, AAA lists these:
- A ticking noise from the engine
- Engine misfires or rough running
- Hard starting
- Smoke or fumes from the engine
Other problems can cause the same symptoms, so have a mechanic diagnose them. If the belt breaks while you drive, the engine stops and won’t restart. Have the car towed; don’t keep cranking it.
Interference engines: why a broken belt is so costly
In an interference engine, the valves and pistons share the same space at different moments. If the belt breaks, the camshafts stop, and the pistons can hit open valves. Consumer Reports and AAA both warn that this can bend valves and damage pistons or cylinders, and the repair can cost thousands of dollars or a whole engine. In a non-interference engine, a broken belt stops the engine without that damage, but you are still stranded.
Your owner’s manual or a dealer can tell you which type your engine is. If you don’t know, treat the interval as a hard deadline.
Timing belt vs timing chain
| Timing belt | Timing chain | |
|---|---|---|
| Made of | Toothed rubber | Metal links, runs in engine oil |
| Replacement | On a set schedule in the owner’s manual | Usually no set interval; replaced when worn, stretched, or noisy |
| Warning signs | Often none before it breaks | Rattle, especially at a cold start; check engine light |
To find out which your car has, look at the maintenance schedule in your owner’s manual: an engine with a timing belt has a line for replacing it. If there is no such line, the engine likely has a chain, but confirm with a dealer or the manual, since some manuals list the belt only in the severe schedule.
Timing chain replacement
A timing chain is built to last much longer than a belt, but AAA notes that chains can still stretch or wear, and should be replaced when they show damage or too much slack. Regular oil changes with the oil your manual specifies help, because the chain and its tensioner run in engine oil.
Signs of a worn or stretched timing chain include a rattle from the front of the engine, often for a few seconds after a cold start, and a check engine light with timing-related trouble codes (codes that the engine computer stores when the camshaft and crankshaft are out of step). A mechanic checks a chain by reading those codes and by inspecting the chain, guides, and tensioner. A chain that breaks or jumps a tooth can cause the same valve damage as a broken belt on an interference engine.
The cost of a timing chain job varies so much by engine that there is no useful national average. Get a written estimate for your engine.
What to write in your maintenance log
- Date and odometer reading
- Parts replaced: belt, tensioner, idler pulleys, water pump, seals (with part numbers if the receipt lists them)
- The shop’s name and the cost
- The next due mileage or date from your owner’s manual
Keep the receipt. It proves the work was done when you sell the car, and it helps with warranty questions: see car maintenance records. A free car maintenance log has a column for each of these.
FAQ
How much does it cost to replace a timing belt?
About $600 to $1,400 at a shop, according to Consumer Reports. The engine design and whether the water pump and tensioner are replaced at the same time decide where your car falls. Get a written estimate.
How long does a timing belt last?
Most carmakers set the replacement between 60,000 and 120,000 miles, and some add a limit in years. Your owner’s manual has the number for your engine.
Does my car have a timing belt or chain?
Check the maintenance schedule in your owner’s manual. If it lists a timing belt replacement, your engine has a belt. If not, it likely has a chain; a dealer can confirm it from your VIN.
What happens if a timing belt breaks while driving?
The engine stops at once. On an interference engine, the pistons can hit the valves, which can mean a very costly repair or a new engine. Have the car towed and checked.
Should I replace the water pump with the timing belt?
If the timing belt drives your water pump, many shops recommend it, because the labor overlaps. Ask for a quote with and without the pump, and follow your owner’s manual.
Sources
- Consumer Reports, Consumer Reports’ guide to car maintenance (timing belt: 60,000–120,000 miles, $600–$1,400; updated May 6, 2026; checked November 12, 2026): consumerreports.org
- Consumer Reports, The cars and SUVs with the highest repair costs for common fixes (interference engines; used cars with a timing belt): consumerreports.org
- AAA Club Alliance, When should timing belts be replaced? (60,000–100,000 miles; signs; January 30, 2024): aaa.com
- AAA, A guide to automotive belts and hoses (timing belt interval; timing chains can stretch or wear; September 8, 2025): aaa.com