garyr
Junior Member
My 2014 130000 miles 5.7 hemi 8 sp. Trans. Bought it with 10,000 miles Ram has had this problem for a year now, When cold vibrates whole vehicle and rpm fluctuation when cold, worst at 1500 RPMs, goes up about 300 RPMS then down in a perfect pattern,sends a vibration through the whole truck. When hot symptoms go away, except in ECO mode below 2000 RPM, RPMs go up down up down constantly, So I never use ECO mode cause it is annoying .
Been to 2 dealers, transmission shop, "Expert mechanic". Transmission shop said not transmission, electrical problem. 1st dealer reflashed ECU said "replace transmission." $3639 cause out of warranty (no I didn't do that).
Took to "expert mechanic" he said injectors dirty, had injectors cleaned, no change.
Took to second dealer 3 times. Said not transmission, reflashed ECU still no change. Dealer Tech supposedly worked with factory engineer said could not figure it out until 3rd time back at dealer. They finally said we found it! Its the accelerator pedal assembly and $570 should do it (no I didnt buy it from them). Found exact new OEM pedal on Rock Auto for about $150 and installed it. No change. Now they say they have to re- program the New Pedal assembly. So I have another appointment now with this dealer $$$.
Unrelated when back under warranty they had the whole dash out to find a air leak after 3 times last time truck in shop for 2 weeks. Also had to have broken exhaust manifold bolts replaced they said this is a common problem with the 5.7 Hemi. And now at idle the plastic shutters in front of the radiator rattle another annoyance and you can here When Cold that something is slow to open.
This is my first Ram. It has not be neglected or overworked at all. Just driven a lot for work. And I know that this could happen with any make. But I have never had this many issues with any other brand truck I have owned.
So needless to say it's probably my last RAM I'll let you know if this next appointment will fix the problem.
Been to 2 dealers, transmission shop, "Expert mechanic". Transmission shop said not transmission, electrical problem. 1st dealer reflashed ECU said "replace transmission." $3639 cause out of warranty (no I didn't do that).
Took to "expert mechanic" he said injectors dirty, had injectors cleaned, no change.
Took to second dealer 3 times. Said not transmission, reflashed ECU still no change. Dealer Tech supposedly worked with factory engineer said could not figure it out until 3rd time back at dealer. They finally said we found it! Its the accelerator pedal assembly and $570 should do it (no I didnt buy it from them). Found exact new OEM pedal on Rock Auto for about $150 and installed it. No change. Now they say they have to re- program the New Pedal assembly. So I have another appointment now with this dealer $$$.
Unrelated when back under warranty they had the whole dash out to find a air leak after 3 times last time truck in shop for 2 weeks. Also had to have broken exhaust manifold bolts replaced they said this is a common problem with the 5.7 Hemi. And now at idle the plastic shutters in front of the radiator rattle another annoyance and you can here When Cold that something is slow to open.
This is my first Ram. It has not be neglected or overworked at all. Just driven a lot for work. And I know that this could happen with any make. But I have never had this many issues with any other brand truck I have owned.
So needless to say it's probably my last RAM I'll let you know if this next appointment will fix the problem.
