LUNAT1C wrote: ↑November 15th, 2021, 5:55 pm Agreed, replace O-ring before replacing the MTV. If the issue persists, you should be able to find a replacement MTV at most salvage yards from a 300M, Concorde Limited, Intrepid R/T or SXT, basically any 2002-2004 LH car with the 3.5L HO engine (LO engine has a block plate instead of the MTV, 1998-2001 has a different style MTV).Did the Manifold Tuning Valve change as well for the 2002+? I know the Short Runner Valve (SRV) changed from vacuum operated to electrically operated.
TrepKing95 wrote: ↑November 18th, 2021, 6:39 pm Did the Manifold Tuning Valve change as well for the 2002+? I know the Short Runner Valve (SRV) changed from vacuum operated to electrically operated.That could what I'm thinking of, but over the years I've found it's safer to stick to same year parts when you're not sure, especially if the part has an electrical connector.