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Holden Captiva: Z20DMH Timing Chain Tensioner Cold Rattle

Z20DMH Timing Chain Tensioner Cold Rattle is a very common engine fault on the Holden Captiva on the 2006–2018 cars, and we rate it major. Putting it right costs $900 to $3,800 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 18 documented faults on the Holden Captiva.

Vehicle
Holden Captiva
Engine
2.0L
Years
2006–2018
Fuel
diesel
System
Engine

This page covers the Holden Captiva as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Holden Captiva faults18 documented faults on this model

What you are looking at

The front of a dual overhead camshaft engine with the timing cover removed, exposing the timing chain and sprockets.Example of the part — not this vehicle

The front of a twin-cam engine with the timing cover off — chain, sprockets and guides.

Logansenf · CC BY-SA 4.0 · Wikimedia Commons

What goes wrong

The hydraulic timing chain tensioner on the GM Z20DMH 2.0 CRDi diesel loses oil pressure when the engine sits overnight, causing the chain to go slack on cold start. A pronounced metallic rattle from the top-front of the engine lasts 5-30 seconds until oil pressure builds. Repeated cycling accelerates chain stretch and plastic guide wear. Left unaddressed, a jumped or snapped chain causes catastrophic valve and piston damage. This is one of the most widely reported faults on the Captiva diesel across Australian workshops and is shared with the Opel Antara and Vauxhall Antara using the same engine.

What you would notice

  • Loud rattling or clattering from engine immediately on cold start
  • Noise disappears within 20-30 seconds as oil pressure builds
  • Check engine light with camshaft timing correlation codes
  • Rough idle and occasional misfires on cold start in advanced cases

How to check it

Where to look. Front of engine block, timing chain and tensioner behind the front cover

  1. Arrange to start the engine from fully cold and listen immediately for chain rattle from the top-front of the block.

  2. Ask the owner to provide a cold-start video if not possible.

  3. Check service records for tensioner or chain replacement history.

  4. Scan for P0008, P0016, or P0017 codes.

  5. Inspect oil level and condition — oil starvation accelerates tensioner failure.

Parts involved: Timing chain.

What it costs to put right

$900 to $3,800 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

  • “Has the timing chain tensioner or timing chain ever been replaced?”
  • “Does the engine make any rattling noise when started after sitting overnight?”
  • “Can I be present for a fully cold start, or is there a video of cold starts?”

Now check the Holden Captiva 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.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Holden Captiva buyer questions

Is z20dmh timing chain tensioner cold rattle serious on a Holden Captiva?

We rate it major and very common on the Holden Captiva. The hydraulic timing chain tensioner on the GM Z20DMH 2.0 CRDi diesel loses oil pressure when the engine sits overnight, causing the chain to go slack on cold start. A pronounced metallic rattle from the top-front of the engine lasts 5-30 seconds until oil pressure builds. Repeated cycling accelerates chain stretch and plastic guide wear. Left unaddressed, a jumped or snapped chain causes catastrophic valve and piston damage. This is one of the most widely reported faults on the Captiva diesel across Australian workshops and is shared with the Opel Antara and Vauxhall Antara using the same engine.

How much does it cost to fix on a Holden Captiva?

$900 to $3,800 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 Holden Captiva years are affected?

Our research records this fault on the 2006–2018 Holden Captiva. 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?

Arrange to start the engine from fully cold and listen immediately for chain rattle from the top-front of the block. Ask the owner to provide a cold-start video if not possible. Check service records for tensioner or chain replacement history. Scan for P0008, P0016, or P0017 codes. Inspect oil level and condition — oil starvation accelerates tensioner failure. Look here: Front of engine block, timing chain and tensioner behind the front cover