Chrysler Repair Questions? Ask a Mechanic for Answers ASAP
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The 2.7 actually has a three chain timing setup. There is a chain between each intake and exhaust cam, and there is a long chain between the crank, water pump, and each intake cam. It has a hydraulic tensioner that is fed engine oil pressure to keep the chains tight. There isn't a service interval on the chains where you have to replace them at a certain mileage.