I have a 1998 mercury grand Marquis with about 146,000. I get to 50-55 and have a vibration. thought it was torque converter shudder, but flushed the tranny and changed the filter to no avail. any ide

Asked by bigjeff31 Apr 04, 2017 at 09:59 PM about the 1998 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

2 Answers

CEL? Also, I have used shudder stop but it didn't work. I'm not sure it is shudder, but it feels like running over rumble strips.

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