Karyn Merriman Posted August 22, 2019 Share Posted August 22, 2019 Does a timing chain need to be replaced on a Lexus 2010 RX450H SUV ? Quote Link to comment Share on other sites More sharing options...
Lexus Owners Club Posted August 23, 2019 Share Posted August 23, 2019 Hi Karyn Although the RX450h engine does have a timing chain and in general timing chains do wear, there are no records that we can find that state the chain needs replacing as a maintenance item. However, if there is a distinct rattling coming from the front of the engine then I would have the car inspected to determine whether it is advanced wear on the chain and tensioners. 1 Quote Link to comment Share on other sites More sharing options...
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