Cadillac Owners Forum banner

1 - 20 of 24 Posts

·
Registered
1998 Deville delagance
Joined
·
210 Posts
Discussion Starter #1
I know this has been kicked around alot and I know what the code means. However on another Cad. forum I have read two different explanations of what to do about it.
1. Let it go and you may see a slight decrease in mileage (1-2 mi per gal.) Nothing else
2. fix immediately because the added friction from the torque converter slipping will cause the transmission to over heat and melt the sensor and other things and you will really need a rebuild. Whos right here because my wife and I are taking a 3000 mi trip in April and dont need a transmission breakdown !!
Thanks for your answers
Don
 

·
Registered
2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
Joined
·
26,323 Posts
#1 is correct. The slight slip won't overheat anything, won't damage anything, won't lead to any other problems.
 

·
Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
·
20,104 Posts
like MC said - #1 is correct -
with the exception change "you may see a slight decrease in mileage" -
to you "WILL" loose a little gas mileage - at speeds over 40 -

many - dare I say MOST who get this code live with it -
for years - without any additional problems caused by ignoring that code -

relax - and enjoy your trip -
 

·
Registered
1998 Cadillac Deville
Joined
·
854 Posts
basscatt said:
like MC said - #1 is correct -
with the exception change "you may see a slight decrease in mileage" -
to you "WILL" loose a little gas mileage - at speeds over 40 -

many - dare I say MOST who get this code live with it -
for years - without any additional problems caused by ignoring that code -

relax - and enjoy your trip -
I get this code sometimes and clear it...

Usually takes a few weeks to a month or more for it to come back... This is the TCC code, right?

Wondering if its a short in the sensor if its random???
 

·
Registered
2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
Joined
·
26,323 Posts
That code, by itself, indicates a leaking seal in the torque converter.
 

·
Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
·
20,104 Posts
I get this code sometimes and clear it...

Usually takes a few weeks to a month or more for it to come back... This is the TCC code, right?

Wondering if its a short in the sensor if its random???
------------------------
if you want to completely understand the code - and the problem -
read this - http://www.cadillacforums.com/forum...on/149834-information-p0741-p1860-1998-a.html

it has pictures of the worn seals - graphically illustrates the problem -
and WHY nothing short of replacing the seals will help -
 

·
Super Moderator
2010 DTS
Joined
·
87,430 Posts
I'll add one more vote. #1 is correct. I've been clearing that code about once every other trip for the last year and it's now getting more frequent.

----------

I get this code sometimes and clear it...

Usually takes a few weeks to a month or more for it to come back.
It will get more frequent.
 

·
Registered
1998 Cadillac Deville
Joined
·
854 Posts

·
Registered
2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
Joined
·
26,323 Posts
It's going to take a LOT of driving for the extra 1-2 MPG you'll gain to make up for the cost of the repair.
 

·
Registered
1998 Cadillac Deville
Joined
·
854 Posts
MoistCabbage said:
It's going to take a LOT of driving for the extra 1-2 MPG you'll gain to make up for the cost of the repair.
It says replace torque converter too

Cheapest one I've found so far is around $300

This doesn't look like its gonna be a low cost deal anyway I go about it

My MPG isn't great but I'd like to see it at atleast 16/17mpg ...average or instant
 

·
Registered
2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
Joined
·
26,323 Posts
The converter's the cheap part. Dropping the drivetrain is what makes it expensive.

The TCC issue is only costing you 1-2 MPG at steady cruising speeds above 43 MPH. If your mileage isn't great, it's either where and how you drive, or a different mechanical problem.
 

·
Registered
1998 Cadillac Deville
Joined
·
854 Posts
jounier11 said:
Bro, if your gonna do this expensive job you might as well rebuilt the whole tranny will save you money down the road in the near future :yup: AND :yeah: what Ranger said!
That's what my mechanic friend has suggested too

Problem I have aside of the money is he says he can't do it in one day, either way he does it... Which is all the time I can go without a car :(

But thanks for the suggestion. :D
 

·
Registered
1998 Deville delagance
Joined
·
210 Posts
Discussion Starter #16
The light has gone out ever since I got the transmission fluid changed also added a can of BG. I'm getting 19/26 mpg (city/hwy). Our trip from Co to Mich. should tell the tale..
Thanks guys...
Don

----------

Speaking of "cost of repair" whats cheaper ? Getting the trans. repaired or replacing it with a rebuilt unit ??
 

·
Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
·
20,104 Posts
The light has gone out ever since I got the transmission fluid changed also added a can of BG. I'm getting 19/26 mpg (city/hwy). Our trip from Co to Mich. should tell the tale..
Thanks guys...
Don

----------

Speaking of "cost of repair" whats cheaper ? Getting the trans. repaired or replacing it with a rebuilt unit ??
-----------------
changing the trans fluid - or adding a can of snakeoil - whatever BG is -
will NOT help/cure/delay/slow-down/prevent/ANY trans problems -

whats cheaper ?
Getting the trans repaired or replacing it with a rebuilt unit ??

you are talking about two different things - and must be clarified -

REPAIR means to fix a specific broken item -

REBUILD means to replace all worn-out parts -

let's consider one somewhat common trans condition -
imagine you get two fault codes - P0741 AND P1860 together -

that combination of codes indicates a faulty TCC solenoid -
and that solenoid CAN be replaced without removing the trans -

if that's the only problem -
a REPAIR would be THOUSANDS cheaper than replacing or REBUILDING -

now - if the trans is slipping - and the fluid is burned and really smelly -
that indicates the trans has internal problems - and is "worn-out"

"fixing" this requires rebuilding the trans -

so - what is the difference between "fixing" THIS trans -
or replacing it with a rebuilt unit - TIME -

when transmissions "wear-out" - it's usually the same parts that need replacing -
the "consumable" parts come in a kit -
along with all the gaskets needed to replace those worn out parts -

YES - I realize MOST trans shops buy in bulk - not separate "paper/rubber" kits -

"hard parts" are parts in the trans that don't wear out -
and are re-used - UNLESS they break -
broken hard-parts are usually NOT included the the price of rebuilding a trans -

in a trans shop - the "BUILDER" is the most expensive employee -
and you can't afford to let him sit around and wait for a trans to be removed -

a smart shop will purchase "cores" - worn out transmissions - from junk yards -
and have a stock-pile of old units to keep the BUILDER busy -

the "trick" is to choose the right units - the most common units for the local area -

that way - the "R&R" guy can remove the trans from a car -
and immediately replace it with a rebuilt unit off the shelf -
saving the customer at least a day of down time -

PLUS - not tying up the hoist waiting for the BUILDER to finish -

rebuilding YOUR worn-out trans - or installing a rebuilt trans off the shelf -
will be the same thing - and cost the same amount
 

·
Registered
1998 Cadillac Deville
Joined
·
854 Posts
-----------------
let's consider one somewhat common trans condition -
imagine you get two fault codes - P0741 AND P1860 together -

that combination of codes indicates a faulty TCC solenoid -
and that solenoid CAN be replaced without removing the trans -
do u have any pics/diagrams of where this is... the one i have in the service manual is confusing... it looks like its inside the transmission

do i need a lift to change the TCC solenoid ???
 

·
Super Moderator
2010 DTS
Joined
·
87,430 Posts
The light has gone out ever since I got the transmission fluid changed also added a can of BG. I'm getting 19/26 mpg (city/hwy). Our trip from Co to Mich. should tell the tale..
Rest assured, it will eventually return.
do u have any pics/diagrams of where this is... the one i have in the service manual is confusing... it looks like its inside the transmission

do i need a lift to change the TCC solenoid ???
If you are getting P0741 is an internal seal and the trans has to be removed and disassembled. If you are getting P0741 & p1860 it's the TCC solenoid and it is inside the side cover. It can be done by lowering one side of the cradle if you know what you're doing and can be done from jack stands.
 

Attachments

·
Registered
1998 Cadillac Deville
Joined
·
854 Posts
Ranger said:
Rest assured, it will eventually return.

If you are getting P0741 is an internal seal and the trans has to be removed and disassembled. If you are getting P0741 & p1860 it's the TCC solenoid and it is inside the side cover. It can be done by lowering one side of the cradle if you know what you're doing and can be done from jack stands.
Wow
That is so much better to look at !!!

I only have the p0741 code

But I had both a few months back too and I cleared the codes... Only p0741 returned

I'm not a mechanic but I watch my friend very closely when he works on my Cadillac.

I don't have the equipment or the understanding to do this stuff myself... But I'm paying my way thru the Northstar crash course

Thanks Ranger
 
1 - 20 of 24 Posts
Top