Toyota Prado: 2TR-FE Timing Chain Stretch and Cold-Start Rattle (2.7L 4-cyl)

The 2TR-FE 2.7L four-cylinder petrol engine used in TRJ120-series Prados suffers from timing chain elongation beyond the tensioner's adjustment range, typically presenting between 150,000 and 250,000 km. The stretched chain rattles on cold start as oil pressure has not yet reached the tensioner, then quietens as oil builds up. If ignored, the chain can jump a tooth, triggering misfires and, in worst cases, valve contact. The condition is accelerated by extended oil change intervals or incorrect oil viscosity. Toyota released a revised tensioner as a service update; earlier units should be considered suspect on any vehicle with unknown service history.

• Metallic rattling from the top front of the engine on cold start, clearing after 5–30 seconds as oil pressure builds
• Rattle persisting for progressively longer as chain wear increases
• Check engine light with cam-crank timing correlation codes P0016 or P0017
• Engine running rough or misfiring at idle in advanced cases

Cold-start the engine after it has been sitting for at least two hours and immediately listen from outside the driver's side for a metallic chain rattle from the front of the engine. Record how long the rattle persists — more than 10 seconds of sustained rattle indicates significant chain stretch. If a workshop inspection is possible: Scan for stored timing correlation fault codes with an OBD-II reader before purchase.

Parts involved: Timing chain.

$1,500 to $4,000 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.

• “Does the engine rattle on cold start and for how long?”
• “Has the timing chain or tensioner been replaced?”
• “What oil change interval and viscosity have been used throughout the vehicle's life?”
• “Are there any stored engine fault codes?”

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.