Hard shifting problem

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84 Z28 HO - 08 Apr 2007 12:48 GMT

1984 Chevy Camaro Z28, AT, "G" code 305ci 8cyl high output engine with 4bbl
Quad-Jet carb, 113K miles. Everytime I put the car into drive or reverse
from park, the entire car jolts. Likewise, when the AT shifts from first
gear to second, there is a huge jolt in the car. This does not occur when
the AT shifts from second to third, or third to fourth. Took it to one of
the Quicky Lube & Trans places for a quick look, they said that the
transmission doesn't look burned or anything and just suggested a $130+
transmission fluid flush.

Before I roll the dice and blow $130, any suggestions on what else might be
causing this?

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JimV - 08 Apr 2007 14:38 GMT

> 1984 Chevy Camaro Z28, AT, "G" code 305ci 8cyl high output engine with 4bbl
> Quad-Jet carb, 113K miles. Everytime I put the car into drive or reverse
[quoted text clipped - 7 lines]
> Before I roll the dice and blow $130, any suggestions on what else might be
> causing this?

Is your speedometer working?

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84 Z28 HO - 08 Apr 2007 23:39 GMT

Stopped working on Friday, the hard shift has been going on for a while
longer.

>> 1984 Chevy Camaro Z28, AT, "G" code 305ci 8cyl high output engine with
>> 4bbl Quad-Jet carb, 113K miles. Everytime I put the car into drive or
[quoted text clipped - 9 lines]
>
> Is your speedometer working?

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JimV - 08 Apr 2007 23:53 GMT

> Stopped working on Friday, the hard shift has been going on for a while
> longer.

They are probably both related to the speed sensor.

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69SScamaro - 08 Apr 2007 16:57 GMT

> 1984 Chevy Camaro Z28, AT, "G" code 305ci 8cyl high output engine with
> 4bbl Quad-Jet carb, 113K miles. Everytime I put the car into drive or
[quoted text clipped - 7 lines]
> Before I roll the dice and blow $130, any suggestions on what else might
> be causing this?

Did they or you look at the universal joints and the torque shaft from the
rear to the trans where it mounts ? If it was just hitting a gear hard while
driving I'd think more on the lines of the VSS not working or maybe
accumulator spring broke or something like that.
Not moving sitting going from park to gear could be something loose (trans
mount, universal etc...)
It still could be a broken accumulator spring which doesn't allow the fluid
to accumulate and slowly build it's pressure as applying the clutch. It acts
like a shock absorber for the clutch pack.

Trans flush would be a waste of money for the problem I think...

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