transmission shudder in 3rd gear

Asked by Jun 14, 2012 at 03:50 AM about the 1997 Ford Thunderbird LX

Question type: Maintenance & Repair

what would cause transmission shudder during normal acceleration when auto is in and shifting to 3rd gear ?1997 t-bird Lx Sport 4.6 w traction loc

4 Answers

217,635

Are you sure it's 3rd gear and not 4th or overdrive, that's where you would feel a shutter the most. But if you feel it in 3rd as well, it could be the torque convertor locking up, which is normal, but maybe something is a miss. How is the fluid level and when was the last time the fluid was changed? I would do a trans fluid/filter change and see if it helps, then diagnose from there.

2 out of 2 people think this is helpful.
2,965

most likely the torque converter.

845

Are you positive its the Trans at all??? I know that Fords with Coil over plug design have problems with coil pack failure. This seems to happen when under load 2 - 3 gear and sometimes when down hifting from OD to 3rd. The coil is sometimes intermittant and will work after about what feels like a 10 - 30second shudder of the engine. It feels like a trans but its not. Check you computer for codes. If you have anything in the 300 - 308 its more then likely a coil going bad.

1 out of 1 people think this is helpful.
10

torque converter. same problem, Ford dealer said it was the clutches were drying out. drained the fluid and added a special converter fluid. and havent had a bit of problem since. PS don't trust a transmission shop unless you know them REAL well

1 out of 1 people think this is helpful.

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