Pontiac: TCC solenoid questions

the best solution is to replace the solenoid. short term wise you can get away with just unhooking the tcc but avoid extended driving.

>By disconnecting the solenoid will the transmission overheat as was 

I can tell you from first hand experience...if you want the quickest, cheapest
& least painful way out...simply disconnent the TCC solenoid wire from the
transmission! I've been running a 1991 G/A in this mode for 6 years/ 60,000+
miles. Driving conditions have ranged from around town to sustained interstate
travel at 70-75 MPH, in all kinds of hot summer weather. Altough I've heard (&
read) arguments about overheating the transmission if you operate in this
mode...you can't prove it by my experience. After all, whatever did we do
before "lock-up" torque converters???!!! Disconnect your your TCC & relax,
things will be just fine.

OK. That sounds like a real winner to me. In looking over the service
manual, changing this solenoid would be no picnic especially at this time of
year.

Thanks much for sharing your experience.

"MBoom1664" <com> wrote in message
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In article <aol.com>,
com (MBoom1664) wrote:

[snip]
 

We had bigger transmission coolers in the radiator and fewer
plastic parts internal to the transmission/transaxle.

We had bigger transmission coolers in the radiator and fewer plastic parts
internal to the transmission/transaxle.

Not to mention larger engine displacements & heavier vehicles that required
larger capacity cooling systems. As we often quote in the scientific community:
"One test is worth a thousand opinions."

Torque converters had lower stall speeds in those days, because they were
optimized for a good balance of performance knowing they'd never lock up. 20
years ago, there were lots of non-lockup cars running around and it was very
easy to compare the two in similar cars (or identical ones). So it's fair to
say in practice, more heat is generated in an unlocked converter that's
designed to be locked. That's obviously a generalization.

However, I haven't seen any proof that cars today have worse transmission
coolers, or that an unlocked converter generates so much heat it'll damage
itself.

"MBoom1664" <com> wrote in message
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In article <aol.com>,
com (MBoom1664) wrote:
 

Don't know about the opinion part, I was merely relaying what was
taught to me in GM transmission/transaxle training by John Porter
at the Milwaukee GM Training Center...

This discussion thread has been very enlightening to me. Thanks to all who
have joined in. My own knowledge and experience related to this issue are
sorely lacking. One observation . . . in reading through the service manual
I came across diagnostics for figuring out why the TCC is not applying,
however, there is no mention of consequences other than lower fuel economy.
Not sure if the non-mention is relevant or just an oversight.


"Neil Nelson" <net> wrote in message
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