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 ...

Everybody complains about the weather, but nobody does anything about it. Some might say the same thing about carbon buildup on the EGR valves and induction systems of older diesel trucks. Clogged EGR ...

Both the Hanes and Chilton (consumer) manuals have failed me*.<BR><BR>1993 Ford Explorer Sport (2-door) 4.0 V6 engine.<BR><BR>Where the heck is the EGR valve? I can't find anything that looks remotely ...

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 ...

QUESTION: I 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 ...