Jerky auto

[VUB]

Is this a feature or a problem?

Mustang 5.0 auto.

First scenario. I drive the car, stop at lights but hold car on footbrake. I pull away, nice and smooth and all OK.

Second scenario. I drive the car, stop at lights but put the auto into park. I then put in drive and go to pull away. There is a distinct delay and a jerk as it goes
into first gear. Then off we go!

I have never experienced this on any other auto, so is this normal on a Mustang?

[Actual]

VUB said:

Is this a feature or a problem?

Mustang 5.0 auto.

First scenario. I drive the car, stop at lights but hold car on footbrake. I pull away, nice and smooth and all OK.

Second scenario. I drive the car, stop at lights but put the auto into park. I then put in drive and go to pull away. There is a distinct delay and a jerk as it goes
into first gear. Then off we go!

I have never experienced this on any other auto, so is this normal on a Mustang?

I have a 2015 Mustang GT Auto.

I don't have any significant jerk like you describe but under some circumstances I do get resistance engaging Drive.

If I stop the car using the footbrake and then select Park first then release footbrake and engage handbrake then it is harder to engage Drive.

If I stop the car using the footbrake and engage the handbrake first followed by Park then release footbrake then there is no resistance to engaging Drive.

In the case of stopping at traffic lights I bring the car to s stop using the footbrake. When the traffic behind me has stopped I engage handbrake and release footbrake. I stay in Drive the whole time and the car holds on the handbrake. When I need to start moving I release handbrake and the car starts moving and I hit the gas and car really starts moving.

Holding the car on the handbrake stops the driver behind being dazzled and as Park is not used it is not necessary to annoyingly dab the brakes to shift from Park to Drive.

This works for me and others may have their own preferences.

[V8 FOU]

Autos are designed to stay in drive at traffic lights, etc. Just use the handbrake if needed as in the previous post.

[goldengooner]

Actual said:

VUB said:

Is this a feature or a problem?

Mustang 5.0 auto.

First scenario. I drive the car, stop at lights but hold car on footbrake. I pull away, nice and smooth and all OK.

Second scenario. I drive the car, stop at lights but put the auto into park. I then put in drive and go to pull away. There is a distinct delay and a jerk as it goes
into first gear. Then off we go!

I have never experienced this on any other auto, so is this normal on a Mustang?

I have a 2015 Mustang GT Auto.

I don't have any significant jerk like you describe but under some circumstances I do get resistance engaging Drive.

If I stop the car using the footbrake and then select Park first then release footbrake and engage handbrake then it is harder to engage Drive.

If I stop the car using the footbrake and engage the handbrake first followed by Park then release footbrake then there is no resistance to engaging Drive.

In the case of stopping at traffic lights I bring the car to s stop using the footbrake. When the traffic behind me has stopped I engage handbrake and release footbrake. I stay in Drive the whole time and the car holds on the handbrake. When I need to start moving I release handbrake and the car starts moving and I hit the gas and car really starts moving.

Holding the car on the handbrake stops the driver behind being dazzled and as Park is not used it is not necessary to annoyingly dab the brakes to shift from Park to Drive.

This works for me and others may have their own preferences.

Have never put her into Park at the lights, just use the handbrake

[twold]

I have noticed a slight hesitation when pulling away sometimes and get the impression that it is changing into 1st gear a bit late so causing the sensation of a micro stall.

[VUB]

An update ...

.... my car is now in my garage awaiting Ford to phone back. It won't shift past second gear, accompanied with a burning smell.

[phillip123hastings]

There is no need to put it in park while waiting for a traffic light. However, if it has problems starting, then there might be an issue with it. I'm curious what Ford will tell you about this issue though

[checkmate91]

There was a whole bunch of internet chat about a derivative of this gearbox as fitted to the Jag S-type (google " the lurch"), you may be experiencing a "feature" of the design. Lock-up in each gear is likely to result in a degree of shunt from time to time I'd say. OTOH clutch band burning sounds bad and worthy of investigating.