Go Back   Cadillac Forum - Enthusiast forums for Cadillac Owners > General Technical Section > Transmission Tech > Automatic Transmissions
Sign in using an external account
Register Forgot Password?
Search

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-29-2007, 10:05 AM
 
Join Date: Jun 2007
Posts: 1
Default Transmission slip - 2001 Deville

Hello everyone. I just inherited a 2001 Cadillac Deville (basic model) with 51k miles. All service was done at a Cadillac dealer. Transmission was flushed for the 30k service. Here's my problem:

When I first start the car, especially after it cools off for an hour or so, if I immediately put it into drive or reverse it doesn't go anywhere. If I count to about 15 then we're fine. Also, if I am just driving through a parking lot or other slower speeds, let off the gas and then hit it again there is a slight hesitation and then it jerks when it catches.

Any ideas on what I am facing? The dealer said a flush wouldn't fix it since it was just done 21k ago and would probably do more harm than good. What do I know....

All advice is appreciated. Thanks!
Reply With Quote
  #2  
Old 06-29-2007, 11:06 AM
stomper's Avatar
Tech Certified Members
 
Join Date: Jun 2007
Posts: 2,704
Default RE: Transmission slip - 2001 Deville

edit:

read what FLCaddytech said below. his approach has more logic than mine
and he certainly has access to data that i dont.

but, may i ask, where was the flush done?

=====================

Quote:
original posting by stomper

where do you live? cold country?

if only does that when trani is cold, i be dropping the pan and putting a
new filter and FRESH top quality new fluid. then see what happens after that.
you may also have a drain for the fluid from the torque unit. maybe some one
else can help out with that.

NO FLUSHING .. that may just be exactly your problem, the prior flush.
recommend against flushing for every make and model car in the planet.
read up on it in the FAQ section.

maybe the problem didnt show up till now (weird) or it did and the driver
didnt expereince it depending on how he started the car (wait the 15+ sec?)
you stated that you inhereted the car, so you probably dont really know.

if it does that when it is warm, i probably do it anyways. it takes under an hour.
cost is low and the gain can be great.


__________________
"If you're going through hell, keep going"
~ Winston Churchill


Reply With Quote
  #3  
Old 06-29-2007, 01:28 PM
 
Join Date: Jun 2007
Posts: 13
Default RE: Transmission slip - 2001 Deville

Why don't you see what codes come up? Go to your local Autozone or Advance Auto Parts and they will check it for free on their diagnostic equipment.
Reply With Quote
  #4  
Old 06-29-2007, 07:15 PM
Super Moderator
 
Join Date: Feb 2007
Posts: 1,653
Default RE: Transmission slip - 2001 Deville

As already stated, do not flush tranny, just not necessary.
__________________
occ
z06
93 allantesold
sts maybe in December
Reply With Quote
  #5  
Old 06-30-2007, 06:59 PM
Super Moderator
 
Join Date: Jun 2006
Posts: 507
Default RE: Transmission slip - 2001 Deville

Im sorry but i dont agree with the blanket statement not to flush trannys.

I have first hand experience with hundreds maybe thousands of flushes.

I have always and will continue to flush the trannys on my own vehicles.

First check your fluid level. Engine running in park and at operating temp.

If that checks good here is a TSB that may help

Quote:



[hr]




[align=left]Click the image to open in full size.



Subject:
Delayed Engagement Into Reverse (Replace the Reverse Ac***ulator Housing Assembly) #01-07-30-008 - (02/16/2001)[/align]
[align=left]



Models:
2001 Cadillac DeVille, Eldorado, Seville[/align][align=left]




2001 Oldsmobile Aurora[/align][align=left]




with 4T80-E Automatic Transmission (RPOMH1) [/align]



[hr]


Condition
Some owners may comment on a shift delay into reverse.
Cause
Delayed reverse engagement may result from low fluid volume or pressure in the reverse ac***ulator that can be caused by internal leakage at the piston seal.
Correction
Verify the concern by doing a normal shift from park to reverse and compare the shift time to a normally operating vehicle. After verifying the delayed shift, replace the ac***ulator housing assembly .
Reply With Quote
  #6  
Old 06-30-2007, 08:08 PM
Stealth's Avatar
Super Moderator
 
Join Date: Feb 2007
Posts: 3,952
Send a message via Yahoo to Stealth
Default RE: Transmission slip - 2001 Deville


maybe the blanket statement does go too far but it has to do more with the
owner / user of the equip than the process itself.

there is nothing wrong in the flushing idea, IF you control the equip and its maintenance.
you do that. most shadetree mechanics do not even have access to one.

the big questions is,
- when it is necessary?
- when is it OK even if not necessary?
- who do we trust?

flushing with a poorly maintaned equip is like having sex with a street hooker,
one gets everything she's got. if one wants clean, one should go where clean
is the rule, not the exception.

i bet your is clean and properly maintaned .. no?




Quote:
ORIGINAL: FLCaddytech

Im sorry but i dont agree with the blanket statement not to flush trannys.

I have first hand experience with hundreds maybe thousands of flushes.

I have always and will continue to flush the trannys on my own vehicles.

First check your fluid level. Engine running in park and at operating temp.

If that checks good here is a TSB that may help

Quote:



[hr]




[align=left]Click the image to open in full size.



Subject:
Delayed Engagement Into Reverse (Replace the Reverse Ac***ulator Housing Assembly) #01-07-30-008 - (02/16/2001)[/align]
[align=left]



Models:
2001 Cadillac DeVille, Eldorado, Seville[/align][align=left]




2001 Oldsmobile Aurora[/align][align=left]




with 4T80-E Automatic Transmission (RPOMH1) [/align]



[hr]


Condition
Some owners may comment on a shift delay into reverse.
Cause
Delayed reverse engagement may result from low fluid volume or pressure in the reverse ac***ulator that can be caused by internal leakage at the piston seal.
Correction
Verify the concern by doing a normal shift from park to reverse and compare the shift time to a normally operating vehicle. After verifying the delayed shift, replace the ac***ulator housing assembly .


__________________
Home of the Allante XYZ Facts & Allante FAQ
~ Stealth

Reply With Quote
  #7  
Old 07-01-2007, 08:50 AM
Super Moderator
 
Join Date: Feb 2007
Posts: 1,653
Default RE: Transmission slip - 2001 Deville

True, should not have made the blanket statment, it was just info rec'd via a post on another site I had seen some time agofrom someone that had a hand in the developement of the N*. Things may have changed. Also thought it was re-posted in our FAQ section, however after a quick look, I don't see it.

I did locate the statement on a quote from Stealth on 11/24/02 whcih quoted a comment from 10/02.
__________________
occ
z06
93 allantesold
sts maybe in December
Reply With Quote
  #8  
Old 07-01-2007, 10:45 AM
Stealth's Avatar
Super Moderator
 
Join Date: Feb 2007
Posts: 3,952
Send a message via Yahoo to Stealth
Default RE: Transmission slip - 2001 Deville

the subject is an FAQ within the Allante section here and the subject at hand (trani) is not N* specific
but applies to the 4100,4500 and 4600 (N*) drive trains. it may also apply to other year models,
someone else can research that.

the GM / Cadillac Drive Train Engineer in question posted the following in approx 5 websites.
http://www.cadillacforum.com/m_6036/tm.htm

before we hit the wall in controversy, let us all keep in mind that this quote is in relation to
the '87 to '93 Allantes, and the requirements for newer cars may be different. i dont know. the car subject
in this thread is a 2001 N*, built 8 years after the last Allante with a totally different design trani?

also, keep in mind that some of the transmissions for these Allantes have obsolete parts that can render
the car a total loss since the only parts source may be another Allante. the cost of taking a risk with
an Allante may be greater than with other Cadillac models. it may ....


here is a partial ...

Quote:
by name witheld by request

It is entirely adequate to drain the trans fluid from the bottom pan and refill with fresh Dex3. Replace the filter when the bottom pan is off for the fluid drain. Forget about the idea of a flush. You don't need junk flushed into your transmission from the flushing equipment that is misplumbed/misrouted/not cleaned/full of old oil/etc.



for those that dont know, part of his job is inspection of Cadillac drive train warranty returns -
he gets to see what comes back and determines why it came back. i wonder, do any Cadillac
transmissions get flushed during the warranty? is that part of the 60,000 service for newer cars?
i really dont know, i'm asking!

in several postings he made direct reference to the lack of maint of the equip used by
many shops and the risk of contaminating perfectly good transmissions.
is that under control
these days?

again, to avoid confussion - we are not talking about the same thing,
there are good flushings and there are bad flushings,
there are older cars, there are newer cars,
there are old requirements, there are new requirements..

- IF you are 100% sure the equip is CLEAN & free of contamination
as required by the equip makers, the risk is small or none.

- IF you have no idea about the equip status, DONT DO IT or go where
equip condition is w/o a doubt, clean!

My question is, how does one know if a buddget trani shop or a dealer has a clean machine?

the last question is "when is a flush needed?"







.
__________________
Home of the Allante XYZ Facts & Allante FAQ
~ Stealth

Reply With Quote
Old 07-01-2007, 10:45 AM
 
 
 
Reply



Tags
2001, 2002, bubbles, cadillac, catalac, cost, deville, drain, fluid, flush, jerks, problems, service, serviced, transmission


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 06:09 AM.

Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.