I seriously question the practice of putting temperature sensor in the
tranny pan, or adding the Ragusa pan. Spend the money for an external cooler
and filter. tranny filters are crude at best.
If you are reading 170 degrees temp in the pan than you are probably
exceeding 200 degrees in the tranny, which will lead to fluid break down and
eventual tranny failure. Remember the fluid is picked up in the pan after
coming back from the radiator and the fluid should be at its LOWEST temp
there.That is one of the reasons for putting the external oil cooler and
filter EXTERNAL to the tranny. Just my thoughts and what I am going to do.
Any other opinions?
>Richard,
>The problem you may be having is that the guage doesn't start soon enough.
>
>If my rig is any indication (I hope the correct one) your temp in the
tranny pan is less than 150 much of the time. I'll check my log later to
confirm, but I know for sure that in normal driving the temp is less than
150 in the pan most of the time, even towing.
>
>Unless you put LOTS of teflon on, it'll bite through and make a connection
ok. (usually
>
>Heinz
>
>
>
>----Original Message-----
> >From: Richard Waters
> >To: gmcmotorhome
> >Subject: Re: GMC: Transmission Question -you may have just solved
my problem!
> >Reply-To: gmcmotorhome
> >Date: Sunday, April 18, 1999 8:57 AM
> >
> >Gary,
> >I was wondering why my new "Custom Instrument Panels" transmission temp
gage was
> >reading so low. The gage goes from 150-300 and most of the time it
never gets off
> >the peg. Sometimes it will go up to 170 degrees after driving up a
grade. Your
> >informative post made me think about the way I installed the sensor.
The sensor is
> >installed in the transmission case (I removed a plug from the case and
installed the
> >sensor according to the instructions that came with the panel). In my
ignorance I
> >am sure I installed the sensor with teflon tape. What was I thinking
of at the
> >time? Could that be the source of my low readings? I bet if I remove
the sensor
> >and clean the threads and then install as you suggest, "Do not put any
thread
> >sealers on the sensor when you install it -- it must make a good
electrical ground
> >contact", I 'll start to get accurate readings. Thanks for the advice!
> >
> >This is another example of how one thing leads to another. Keep it up
GMCnet! I am
> >sure learning a lot here and am looking forward to being able to contribute
> >information rather then just receive it.
> >Richard Waters, 1976 PB, Troy, MI
> >-------------
> >
> >
> >> "Do not put any thread sealers on the sensor when you install it --
it must make a
> >> good electrical ground contact. My transmission runs about 170
degrees on
> >> straight easy roads, climbs to 200 on grades. Get a gauge what goes
from 150 to
> >> 300."
> >>
> >
> >
> >
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
tranny pan, or adding the Ragusa pan. Spend the money for an external cooler
and filter. tranny filters are crude at best.
If you are reading 170 degrees temp in the pan than you are probably
exceeding 200 degrees in the tranny, which will lead to fluid break down and
eventual tranny failure. Remember the fluid is picked up in the pan after
coming back from the radiator and the fluid should be at its LOWEST temp
there.That is one of the reasons for putting the external oil cooler and
filter EXTERNAL to the tranny. Just my thoughts and what I am going to do.
Any other opinions?
>Richard,
>The problem you may be having is that the guage doesn't start soon enough.
>
>If my rig is any indication (I hope the correct one) your temp in the
tranny pan is less than 150 much of the time. I'll check my log later to
confirm, but I know for sure that in normal driving the temp is less than
150 in the pan most of the time, even towing.
>
>Unless you put LOTS of teflon on, it'll bite through and make a connection
ok. (usually
>
>Heinz
>
>
>
>----Original Message-----
> >From: Richard Waters
> >To: gmcmotorhome
> >Subject: Re: GMC: Transmission Question -you may have just solved
my problem!
> >Reply-To: gmcmotorhome
> >Date: Sunday, April 18, 1999 8:57 AM
> >
> >Gary,
> >I was wondering why my new "Custom Instrument Panels" transmission temp
gage was
> >reading so low. The gage goes from 150-300 and most of the time it
never gets off
> >the peg. Sometimes it will go up to 170 degrees after driving up a
grade. Your
> >informative post made me think about the way I installed the sensor.
The sensor is
> >installed in the transmission case (I removed a plug from the case and
installed the
> >sensor according to the instructions that came with the panel). In my
ignorance I
> >am sure I installed the sensor with teflon tape. What was I thinking
of at the
> >time? Could that be the source of my low readings? I bet if I remove
the sensor
> >and clean the threads and then install as you suggest, "Do not put any
thread
> >sealers on the sensor when you install it -- it must make a good
electrical ground
> >contact", I 'll start to get accurate readings. Thanks for the advice!
> >
> >This is another example of how one thing leads to another. Keep it up
GMCnet! I am
> >sure learning a lot here and am looking forward to being able to contribute
> >information rather then just receive it.
> >Richard Waters, 1976 PB, Troy, MI
> >-------------
> >
> >
> >> "Do not put any thread sealers on the sensor when you install it --
it must make a
> >> good electrical ground contact. My transmission runs about 170
degrees on
> >> straight easy roads, climbs to 200 on grades. Get a gauge what goes
from 150 to
> >> 300."
> >>
> >
> >
> >
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
