Two critical elements that need to be checked out at 100,000 miles are the EGR valve and the DPF. Hasten says to run a computerized flow test on the DPF filter tol show if the filter in the exhaust ...
QI have a 2007 Dodge Grand Caravan with the "check engine" light on. I checked it with a code reader and got a P0404 code: "Exhaust Gas Recirculation Circuit Range/Performance." A new EGR valve costs ...
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