Suzuki Grand Vitara: J20A / J24B timing chain stretch
J20A / J24B timing chain stretch is a common engine fault on the Suzuki Grand Vitara on the 2005–2015 cars, and we rate it major. Putting it right costs $1,200 to $2,800 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 22 documented faults on the Suzuki Grand Vitara.
- Vehicle
- Suzuki Grand Vitara
- Engine
- J20A / J24B
- Years
- 2005–2015
- Fuel
- petrol
- System
- Engine
What you are looking at
Example of the part — not this vehicleThe front of a twin-cam engine with the timing cover off — chain, sprockets and guides.
What goes wrong
The second-generation Grand Vitara (2005-2015) uses the J20A 2.0L or J24B 2.4L four-cylinder petrol engines, both chain-driven interference designs. The chain tensioner and plastic guide system wears gradually and is sensitive to oil change frequency. On examples that have had extended service intervals or have exceeded 150,000 km, the chain elongates enough to produce a rattle on cold start-up. A jumped tooth on these interference engines bends the valves, turning a preventable maintenance job into an engine rebuild costing more than the car's value. Multiple Grand Vitara owner forums in AU and NZ cite this as the single most important mechanical item to verify at purchase.
What you would notice
- Rattling on cold start that clears once oil pressure builds
- Persistent ticking at idle suggesting chain guide or tensioner wear
- Check engine light with cam timing correlation codes (P0016 / P0017 / P0014)
- Rough running or misfires if chain has skipped
How to check it
Where to look. Front of the J20A/J24B engine, timing chain on the right side of the block behind the cam cover
Insist on a cold start. Any rattle on first start-up warrants a workshop inspection of chain stretch and tensioner condition. Check the service history for oil change regularity — a 2.0L/2.4L engine running on old oil is the primary timing chain failure scenario. Budget for chain replacement if the car is over 130,000 km with no documented chain service.
What it costs to put right
$1,200 to $2,800 at New Zealand independent workshop rates. That is for this job on its own, not for the car.
Ask the seller
- “Has the timing chain or tensioner been replaced?”
- “Is there any rattle on cold start?”
- “How regularly has the oil been changed and do you have receipts?”
Now check the Suzuki Grand Vitara you are actually looking at
Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.
Where this comes from
Suzuki Grand Vitara buyer questions
Is j20a / j24b timing chain stretch serious on a Suzuki Grand Vitara?
We rate it major and common on the Suzuki Grand Vitara. The second-generation Grand Vitara (2005-2015) uses the J20A 2.0L or J24B 2.4L four-cylinder petrol engines, both chain-driven interference designs. The chain tensioner and plastic guide system wears gradually and is sensitive to oil change frequency. On examples that have had extended service intervals or have exceeded 150,000 km, the chain elongates enough to produce a rattle on cold start-up. A jumped tooth on these interference engines bends the valves, turning a preventable maintenance job into an engine rebuild costing more than the car's value. Multiple Grand Vitara owner forums in AU and NZ cite this as the single most important mechanical item to verify at purchase.
How much does it cost to fix on a Suzuki Grand Vitara?
$1,200 to $2,800 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.
Which Suzuki Grand Vitara years are affected?
Our research records this fault on the 2005–2015 Suzuki Grand Vitara. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.
How do I check for it before I buy?
Insist on a cold start. Any rattle on first start-up warrants a workshop inspection of chain stretch and tensioner condition. Check the service history for oil change regularity — a 2.0L/2.4L engine running on old oil is the primary timing chain failure scenario. Budget for chain replacement if the car is over 130,000 km with no documented chain service. Look here: Front of the J20A/J24B engine, timing chain on the right side of the block behind the cam cover