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Old 04-12-2019, 10:49 AM
john123drury john123drury is offline
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Location: PA
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john123drury john123drury is offline
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Join Date: Jul 2014
Location: PA
Posts: 58
john123drury is on a distinguished road
Intermittent JOLT when coming to a stop

Hey gang - 2005 4Runner SR5. All Stock. 175K Really annoying and intermittent issue that I can't figure out.

Earlier in the year I was experiencing a slight but noticeable shudder when accelerating at slow speeds around the 20 - 30 MPH mark. It was only on acceleration. Not coasting or braking. I remember experiencing something similar years ago, and the suggestion was to drain and refill the transmission oil. 3 years ago that solved the problem. Shudder disappeared. So thinking it was a similar issue, I drained it again (over the course of 3 months, 1.5 quarts at a time until completely recycled with new Trans fluid; Toyota genuine oil).

As of today, the shudder I felt when I first started this months ago has gone away. But a NEW issue has surfaced and I don't know if it's related.

When coming to hard stop from a generally fast speed (not burning rubber or excessive braking; just braking a little harder than normal to slow the car down relatively quickly), the car will JOLT within a few seconds after stopping. Now this doesn't always happen. and I'd say 80% of the time it's fine. But every so often at the exact moment when I stop, within 2-4 seconds AFTER stopping from a relatively hard brake, I feel a jolt...like it's finishing the last downshift back to 1st gear but in a very hard way. Sometimes it's strong enough to literally push the car forward an inch or two.

I can't think of any other way to describe what's happening. I don't know if it's Transmission related or not. But it certainly feels like something connected to the drivetrain is not keeping up with the vehicle's momentum.

Any thoughts would be appreciated!
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