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2002 Cadillac Deville Service Engine Soon Light - Transmiss

Tiny
LBRABOYD
  • MEMBER
  • 2002 CADILLAC DEVILLE
  • V8
  • 2WD
  • AUTOMATIC
  • 46,888 MILES
A GM dealership and an independent repair garage both told me that I need torque converter rebuild. One tells me $1,800 for a temporary repair and the other tells me$3,000 for a full repair.

DTC P0741 TCC Slip speed

I cannot detect anything wrong with the transmission except for the light, however, the independent said he ran SCAN and Road Test.

I am reluctant to replace the troque converter at either price. GM appears to have had moderate problems with the transmission in this year Deville.

What do you think will happen if I just disregard this light and maintenance suggestions?

Can I drive it and be able to tell if it gets worse?

Will heat up of tranmission show on the dash indicator panel?

Wjat if I drive it until it drops?

E-mail of Call me at 405-701-1354.

Richard Boyd
Norman, Oklahoma
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Monday, October 13th, 2008 AT 7:54 PM

8 Replies

Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
What is supposed to be wrong with the torque convertor? Is it "locking up"?
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Monday, October 13th, 2008 AT 8:30 PM
Tiny
LBRABOYD
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  • 4 POSTS
They allege possible slipping. I cannot feel it.
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Monday, October 13th, 2008 AT 9:52 PM
Tiny
RACEFAN966
  • MECHANIC
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To directly answer you questions yes you can drive it till it gets worse and you will probable notice itas it does. Heat up the trans probable will not show up on the dash. If you drive it till it drops then you might have to replace the transmission rather then have it rebuilt and it may let you down on the road. Hope this helps.
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Monday, October 13th, 2008 AT 10:16 PM
Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
You wouldn't be able to feel the convertor lock up 'cause it usually does it when the trasmissiom shifts into overdrive. What code(s) did your independant say you had? Also, with only 47K miles on the car, I find it extremely hard to believe the convertor is bad. Let me know on the code(s).
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Monday, October 13th, 2008 AT 10:29 PM
Tiny
LBRABOYD
  • MEMBER
  • 4 POSTS
Boyd writes:

The code is PO741. Why the difference in prices? I.E. $1,800 to do just the TC and $3000 to do TC and updates for a permanent fix.
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Tuesday, October 14th, 2008 AT 1:52 PM
Tiny
JAMES W.
  • MECHANIC
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I would guess the $1800 job, which seems a little stiff to me, is a new or rebuilt TC. The $3000 job, guessing again, would be a TC and vertually a rebuilt transmission.
Have you tried clearing this code to see if it comes back? If yes, roughly how long does it take to return?
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Tuesday, October 14th, 2008 AT 4:57 PM
Tiny
LBRABOYD
  • MEMBER
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No - I will try that tomorrow and let you know. That may take a few days. But thanks for the suggestion.
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Tuesday, October 14th, 2008 AT 9:14 PM
Tiny
JAMES W.
  • MECHANIC
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I'll wait til' I hear back, no rush, Jim
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Thursday, October 16th, 2008 AT 5:36 AM

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