TCK Failure Modes. TC2015K, TC2020K, TC2025K

TC2015K, TC2020K, TC2025K

The N42, N43, N45 and N46 engines are particularly known for Timing Chain problems. The original tensioner was too short and allowed the chain to become slack which would then rub and clatter against the guides. This would lead to a very noisy engine from cold start, misfiring and incorrect error codes for the camshaft sensors. BGA’s tensioner has been lengthened to allow for less movement with the chain and guides and the chain has been uprated to allow for more load to be put on it before it snaps.

TC2015K

TC2015K

TC2020K

TC2020K


TC2025K

TC2025K


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