[Gmecm] 4L60e

[Don Sauman]

The part about the pressure control solenoid is right at least as far as 
a 4L80E is concerned. The force motor up to to '93 worked on a freq of 
292.5Hz '94 on used 614Hz.. They not changeable in the trans.

I have the same problem in that my controller is 1993, but the trans is 
1996. Can get little info on either effect of using the cross 
configuration or the later controller with a NA diesel.

I am looking at designing my own Tiptronics style shift.

Don

WopOnTour wrote:

> AFAIK that switch mounted on the shift shaft of the 4L60E (on the 95 
> or newer models) is merely for the digital PRNDL readout on the 
> cluster which wouldn't be required on the older dash.However there may 
> be other electronic differences in the 96 model (e.g. solenoids?) that 
> might not be totally compatible with the 93 PCM . I don't have those 
> details in front of me, but some else here may know. Something about a 
> different Pressure Control Solenoid PWM frequency rings a bell???...
> HTH
> WopOnTour
> ----- Original Message ----- From: <Rexdina at aol.com>
> To: <gmecm at diy-efi.org>
> Sent: Tuesday, September 05, 2006 5:38 PM
> Subject: [Gmecm] 4L60e
>
>
>> Hope I don't offend anyone, but I have a 4L60e question which  probably
>> affects the ECM. I have a '94 GMC Van 4L60e that needs rebuilt. I 
>> also have a good
>> '96 4L60e out of a '96 Chev. pickup. Both are 2 wheel drive, full  sized
>> vehicles. The '96 trans has a black box connected to the shift arm on 
>> the trans,
>> while the '94 does not. What is the purpose of the '96 black box and 
>> it's
>> wiring? Can it be discarded and can the '96 trans. be a bolt in 
>> replacement for
>> the '94? Thanks in advance.
>> RC
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-- 
Don Sauman
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