gtrotter
Junior Member
- Joined
- Apr 8, 2017
- Posts
- 3
- Reaction score
- 6
- Ram Year
- 2017
- Engine
- Hemi 5.7
Hey al, I've got a 1991 D150 with 318 and auto. 49k miles.
I'm having a shudder pop up at light idle that is especially pronounce when the torque converter goes into lockup. Its worse from 50 to 65 mph, but seems to go away at higher speeds. If I kick overdrive off it goes away when cruising at say 60. Trans shifts good, and truck pulls hard(for a raging 170 hp). It needs a muffler from sitting, so hard to tell but it almost seems like a slight miss at idle.
I pulled codes and got 12, 17, and 55. 17 is the only one I'm concerned with, so I replaced the temp sender. I've checked for vacuum leaks and found nothing. Truck sat alot of course, so could it be fuel pump related or would you guys lean towards torque converter? Could a bad thermostat being stuck open cause this?
Also, pictures of the truck for those interested.
I'm having a shudder pop up at light idle that is especially pronounce when the torque converter goes into lockup. Its worse from 50 to 65 mph, but seems to go away at higher speeds. If I kick overdrive off it goes away when cruising at say 60. Trans shifts good, and truck pulls hard(for a raging 170 hp). It needs a muffler from sitting, so hard to tell but it almost seems like a slight miss at idle.
I pulled codes and got 12, 17, and 55. 17 is the only one I'm concerned with, so I replaced the temp sender. I've checked for vacuum leaks and found nothing. Truck sat alot of course, so could it be fuel pump related or would you guys lean towards torque converter? Could a bad thermostat being stuck open cause this?
Also, pictures of the truck for those interested.