MarshalLaw
Junior Member
Little info on my truck just as an FYI in case any of this is useful at all:
2014 Ram 1500, 5.7 Hemi, BBK shorty headers (leaking again, unfortunately), Carven muffler, 113K miles, owned it since it was at 43k.
A few months ago I noticed a strange hesitation at lower speeds (25-35 mph) that seemed like a transmission issue. Since then it has gotten much worse. Now it feels like I'm hitting a rough patch in the road and the truck will even shake a bit while hovering around the 25-35mph range. Only does it whith gradual acceleration, doesn't seem to have the issue when I floor it. Also, when at a consistent speed (like with cruise control on) the truck will rev up a little bit about 200-300 rpm every 3 seconds consistently. Kinda feels like it's pulsing, and it's pretty much always every 3 seconds on the dot. At first I thought it was a transmission issue, but I brought it to a very reputable transmission shop that I trust and they were adamant that it was not transmission related. They suggested that I look into a PCM reflash, and if it wasn't that, to look at the heads/valves.
Next I brought it to two different Ram dealers that both told me the same thing. Mopar doesn't have a reflash for the truck unless I had a new engine or transmission put in, or something like that, and that they don't know where to start because my truck has a lift and headers and I should return it to stock and see if that fixes it. Got quoted from one of the dealers new MDS solenoids and intake manifold gasket as a "shot-in-the-dark, maybe this is what it is" thing, not knowing if they are actually bad or not.
I've heard of people buying diablo tuners to relfash and recode their own PCM's, but I don't want to spend the money on one without asking you guys to see if there's anything else that may come to mind, or if anyone has fixed this issue before.
I appreciate your time, thanks
2014 Ram 1500, 5.7 Hemi, BBK shorty headers (leaking again, unfortunately), Carven muffler, 113K miles, owned it since it was at 43k.
A few months ago I noticed a strange hesitation at lower speeds (25-35 mph) that seemed like a transmission issue. Since then it has gotten much worse. Now it feels like I'm hitting a rough patch in the road and the truck will even shake a bit while hovering around the 25-35mph range. Only does it whith gradual acceleration, doesn't seem to have the issue when I floor it. Also, when at a consistent speed (like with cruise control on) the truck will rev up a little bit about 200-300 rpm every 3 seconds consistently. Kinda feels like it's pulsing, and it's pretty much always every 3 seconds on the dot. At first I thought it was a transmission issue, but I brought it to a very reputable transmission shop that I trust and they were adamant that it was not transmission related. They suggested that I look into a PCM reflash, and if it wasn't that, to look at the heads/valves.
Next I brought it to two different Ram dealers that both told me the same thing. Mopar doesn't have a reflash for the truck unless I had a new engine or transmission put in, or something like that, and that they don't know where to start because my truck has a lift and headers and I should return it to stock and see if that fixes it. Got quoted from one of the dealers new MDS solenoids and intake manifold gasket as a "shot-in-the-dark, maybe this is what it is" thing, not knowing if they are actually bad or not.
I've heard of people buying diablo tuners to relfash and recode their own PCM's, but I don't want to spend the money on one without asking you guys to see if there's anything else that may come to mind, or if anyone has fixed this issue before.
I appreciate your time, thanks
