VT: auto drops out of 4th wont go back in.

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-:Install:- - 03 May 2006 12:40 GMT

Howdy, I have a VT comm (89) 100000 k's on clock, (exactly.. well 99981)
while driving @ 100k's or so, box will drop back to 3rd, and wont go back
in, Key off (while moving) and back on and it will go back in for X amount
of k's and again dropping back to 3rd later on. with trip comp in diagnostic
mode (mode and V key held in while ignition on) the motor temp hovers around
92Degs, digi speed indicator reads 100-103 etc. all seems fine, no clunking,
no slipping, no high temp.

Solenoid ? sensor ? wear in box ?

Anyone ?

Going to have the scantool ran over it on Friday, but doubt it will give any
indicative codes on box.

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Smee R11S - 03 May 2006 15:18 GMT

> Howdy, I have a VT comm (89) 100000 k's on clock, (exactly.. well 99981)
> while driving @ 100k's or so, box will drop back to 3rd, and wont go back
[quoted text clipped - 10 lines]
> Going to have the scantool ran over it on Friday, but doubt it will give any
> indicative codes on box.

my bet would be the solenoid.
It happened to my trimatic on the old kingswood.

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DalienX - 03 May 2006 16:12 GMT

> Howdy, I have a VT comm (89) 100000 k's on clock, (exactly.. well
> 99981) while driving @ 100k's or so, box will drop back to 3rd, and
[quoted text clipped - 11 lines]
> Going to have the scantool ran over it on Friday, but doubt it will
> give any indicative codes on box.

When was the last time you had it serviced?

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-:Install:- - 04 May 2006 08:16 GMT

PLUG LEADS..... I have been told it could well be the plug leads failing
causing interference with the sensors etc. Its had regular services @
10,000k intervals by Motors.

> > Howdy, I have a VT comm (89) 100000 k's on clock, (exactly.. well
> > 99981) while driving @ 100k's or so, box will drop back to 3rd, and
[quoted text clipped - 13 lines]
>
> When was the last time you had it serviced?

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OzOne - 03 May 2006 22:45 GMT

>Howdy, I have a VT comm (89) 100000 k's on clock, (exactly.. well 99981)
>while driving @ 100k's or so, box will drop back to 3rd, and wont go back
[quoted text clipped - 10 lines]
>Going to have the scantool ran over it on Friday, but doubt it will give any
>indicative codes on box.

Holden!

Oz1...of the 3 twins.

I welcome you to crackerbox palace,We've been expecting you.

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Clockmeister - 03 May 2006 23:02 GMT

> Howdy, I have a VT comm (89) 100000 k's on clock, (exactly.. well 99981)
> while driving @ 100k's or so, box will drop back to 3rd, and wont go back
[quoted text clipped - 14 lines]
> any
> indicative codes on box.

Torque convertor lockup solenoid I suspect.

What is the colour/smell of the oil like? Does it smell burnt?

Dunno which scan tool you are using, but you can control the lockup solenoid
and shift solenoids as well as monitor their function with Tech 2.

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