Hey John – Glad it was something simple. So now I would recommend doing the same thing to the 300G, since you mentioned that you were having similar problems with that beast. Ron From: chrysler-300-club-international@xxxxxxxxxxxxxxxx On Behalf Of John Nowosacki Update on my Hurst issue. A great case of 'check the easy and inexpensive stuff first' I was preparing to remove the carb to check for dirty/clogged low speed circuits, and when I went to remove the big, fat vacuum hose from the base of the carb that goes to the PCV valve, I noticed it moved/wiggled instead of being firmly attached. The hose was hard as a rock from engine bay heat and had a split in it near the clamp. When I checked the other end, the hose was also hardened and brittle at the PCV valve, and the cheap plastic PCV valve itself had a crack in it. I had spare PCV valves in my stash, as well as some vacuum hose, but I needed to go to NAPA to get a new grommet for the valve cover as it was also petrified and broke when I tried to get the old PCV valve out of it. With new grommet, PCV valve, and hose installed, the car was back to running great and idling at low rpm (once the huge vacuum leak was fixed). $4.99 fix for a new grommet. Of course, I've been chasing this issue in one form or another with timing and idle mixture screw adjustments for a few months until the hose and/or PCV finally completely broke instead of just causing a minor vacuum leak all along. Now I need to go back and readjust timing, mixture, idle speed with a properly running motor, but that will be much easier without an intermittent vacuum leak causing me fits. On Wed, May 15, 2024 at 11:40 AM John Nowosacki <jsnowosacki@xxxxxxxxx> wrote:
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