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#2571322 - 08/02/12 11:46 AM Overdrive slipping
[email protected] Offline
Member

Registered: 09/02/06
Posts: 361
Loc: North East PA
Hi guys,
I have a 2008 cvpi with 134,000 miles, all stock. On the way to work this morning it started to slip in overdrive. Driving along fine, then all of a sudden the rpms went up. engine just reved, but if I floor it, it grabs again and goes strong. I read a couple of posts, and I tried starting off with the gear selector in 2nd. The car still moves, but not as good as when I start off in drive or 1st. Unless anyone has any suggestions, I assume its the overdrive band and I will need a rebuild/replace. I assume by flooring it, it shifts out of overdrive and grabs. Fluid smells ok, but is slightly off color.
_________________________
2008 CVPI
271,000 miles. J-mod, Mo's 93 octane tune. Steeda Under drive Pulleys. Trick Flow Ported and polished Plenum. BBK 75mm TB. Metco control arms. Some kind of Flowmasters.

1998 CVPI
215,000 miles Refurbished at 87,400 miles, sleeping for now.

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#2571369 - 08/02/12 01:07 PM Re: Overdrive slipping [Re: [email protected]]
Run4orest Offline
Member

Registered: 10/13/11
Posts: 477
Loc: NC
Here is a thread that may help?

Crown Vic P71 Shifts Hard - Crownvic.net

From what I am seeing is ya might get some more life out of her with a fluid and filter change and where on user got his running smooth with an additive..

Although, I have read where if the color is off in your fluid that a change may be too late (it is here somewhere) and that changing with slippage and dark color fluid may make it worse?

Or (if it was me at this point) I would try the additive and if that helped / works then a flush? (just 2 cents worth)..

I feel that these may be temporary solutions but hope I am wrong..

Good Luck!
_________________________
05 P71 Daily Driver - 140K - LCM Relay Up-grade - Ford PI Racing Manifold - Serpentine Tensioner - PCV - Fuel Filter - All fluids - MP3 - Depo Lenses - Nip Tuck Bumper - Antenna Plugs - 17" OEM Wheels - SAP Conversion - Viper - Fire Extinguisher - Flashlight - Aftermarket Lug Nut Wrench


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#2571384 - 08/02/12 01:23 PM Re: Overdrive slipping [Re: [email protected]]
CTRITSCHLER Offline
Climber

Registered: 04/15/07
Posts: 829
Loc: DuQuoin, Illinois
Did you get any warning lights?
_________________________
2003 F250 Super Duty 7.3L Powerstroke
2000 Ford Excursion 6.8L V10
1986 Chevrolet D30 M1008 CUCV 6.2L

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#2571413 - 08/02/12 01:45 PM Re: Overdrive slipping [Re: CTRITSCHLER]
[email protected] Offline
Member

Registered: 09/02/06
Posts: 361
Loc: North East PA
No lights. I only drove it for 4 miles after it happened. I am at work now. I was going along fine, then the rpm's just started climbing. Just like being in neutral, untill I floored it or turned the overdrive off. I might pick up a wrecked cvpi at the auction coming up. there are 2 2011's and a 2010. The 1 2011 has 1,910 miles on it.
_________________________
2008 CVPI
271,000 miles. J-mod, Mo's 93 octane tune. Steeda Under drive Pulleys. Trick Flow Ported and polished Plenum. BBK 75mm TB. Metco control arms. Some kind of Flowmasters.

1998 CVPI
215,000 miles Refurbished at 87,400 miles, sleeping for now.

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#2571596 - 08/02/12 06:25 PM Re: Overdrive slipping [Re: [email protected]]
[email protected] Offline
Member

Registered: 09/02/06
Posts: 361
Loc: North East PA
No overdrive, just like being in neutral. If I start off with gear selector in 2nd, it moves, but slips alot. When I turn off the overdrive, it acts weird when shifting to drive. I guess its shot. What fits and where can I get one?
_________________________
2008 CVPI
271,000 miles. J-mod, Mo's 93 octane tune. Steeda Under drive Pulleys. Trick Flow Ported and polished Plenum. BBK 75mm TB. Metco control arms. Some kind of Flowmasters.

1998 CVPI
215,000 miles Refurbished at 87,400 miles, sleeping for now.

Top
#2571715 - 08/02/12 09:56 PM Re: Overdrive slipping [Re: [email protected]]
[email protected] Offline
Member

Registered: 09/02/06
Posts: 361
Loc: North East PA
Can the problem be the overdrive solenoid? It didn't show any signs of slipping, just all of a sudden, no overdrive.


Edited by [email protected] (08/02/12 09:57 PM)
_________________________
2008 CVPI
271,000 miles. J-mod, Mo's 93 octane tune. Steeda Under drive Pulleys. Trick Flow Ported and polished Plenum. BBK 75mm TB. Metco control arms. Some kind of Flowmasters.

1998 CVPI
215,000 miles Refurbished at 87,400 miles, sleeping for now.

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#2571931 - 08/03/12 06:17 AM Re: Overdrive slipping [Re: [email protected]]
Rogerm60 Offline
Member

Registered: 01/15/03
Posts: 211
Loc: Zinzinnati
Overdrive band??? If the converter clutch fails you just get third gear.

Make sure your fluid level is not too low.
Check for little air bubbles in the fluid.
Could be a solenoid or one of those plastic servo pistons.
_________________________
2006 P71, Black on Black. Installing camera system and getting road ready.

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#2572143 - 08/03/12 03:44 PM Re: Overdrive slipping [Re: [email protected]]
Run4orest Offline
Member

Registered: 10/13/11
Posts: 477
Loc: NC
Does the car drive fine when you are out of Over-drive?

(noticing Rogerm60's response)

In the old days, it was always reverse that seemed to go out first when your tranny was going, not sure if that is the same today..

Perhaps try and only drive without overdrive is my thought other than, sorry to hear ya are having issues and Best of Luck!!
_________________________
05 P71 Daily Driver - 140K - LCM Relay Up-grade - Ford PI Racing Manifold - Serpentine Tensioner - PCV - Fuel Filter - All fluids - MP3 - Depo Lenses - Nip Tuck Bumper - Antenna Plugs - 17" OEM Wheels - SAP Conversion - Viper - Fire Extinguisher - Flashlight - Aftermarket Lug Nut Wrench


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#2572150 - 08/03/12 03:59 PM Re: Overdrive slipping [Re: [email protected]]
Jeff_from_jeffco Offline
Climber

Registered: 08/11/11
Posts: 538
Loc: Mo, jefferson country
your overdrive band is probably fried.... if you read a manual it will take you (once trans is out of the car) about 20 minutes and a 20 dollar part to fix it smile trust me just did it.

would say pump but takes more pressure in reverse than drive so :P

_________________________
2000 p71 police interceptor from Town n County
Aftermarket stereo with 4 12 inch audiopipe subwoofers and 2 1500w rms amps 1 ohm stable smile
top speed run so far of 135
159,xxx Still running like a champ
jmod- with no springs
99 PCM/MAF, bumper tucked, 200 amp alternator upgrade, headlamp relay mod, wig wags, 102 inch whip with cb. - all done with ctrichsler's help

Other vehicles:
2004 cummins turbo diesel - 111k
2005 dodge SRT-10 pickup 37k miles
1995 dodge 1500 206k miles

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#2572157 - 08/03/12 04:12 PM Re: Overdrive slipping [Re: Jeff_from_jeffco]
[email protected] Offline
Member

Registered: 09/02/06
Posts: 361
Loc: North East PA
Thanks for the replies, It drives fine with OD off. I read that a test for the OD band is to start from a dead stop with the gear selector in 2. When I do that, the car moves, but the tranny slips. If I start in D or 1, its fine. Its just weird that there was no sign of even slight slippage until it just went while cruising down the highway.
_________________________
2008 CVPI
271,000 miles. J-mod, Mo's 93 octane tune. Steeda Under drive Pulleys. Trick Flow Ported and polished Plenum. BBK 75mm TB. Metco control arms. Some kind of Flowmasters.

1998 CVPI
215,000 miles Refurbished at 87,400 miles, sleeping for now.

Top
#2572163 - 08/03/12 04:21 PM Re: Overdrive slipping [Re: [email protected]]
Jeff_from_jeffco Offline
Climber

Registered: 08/11/11
Posts: 538
Loc: Mo, jefferson country
it won't it just just a band of friction material and it just wore smooth. would suggest not driving it of you can take out the reverse clutch hub because thats where the o.d. band rides. my suggest is to rebuild and put a new band in. like i said once you have it out of the car.... take off valve body, take out o.d. servo assembly. take out pump (6 bolts) take band off and replace with new and reverse order.

aso yes the overdrive band applies in manual 2nd so that would be why you are slipping. it does not however apply with shifter in drive and in 2nd :P fun fact.
_________________________
2000 p71 police interceptor from Town n County
Aftermarket stereo with 4 12 inch audiopipe subwoofers and 2 1500w rms amps 1 ohm stable smile
top speed run so far of 135
159,xxx Still running like a champ
jmod- with no springs
99 PCM/MAF, bumper tucked, 200 amp alternator upgrade, headlamp relay mod, wig wags, 102 inch whip with cb. - all done with ctrichsler's help

Other vehicles:
2004 cummins turbo diesel - 111k
2005 dodge SRT-10 pickup 37k miles
1995 dodge 1500 206k miles

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#2572175 - 08/03/12 04:54 PM Re: Overdrive slipping [Re: Jeff_from_jeffco]
[email protected] Offline
Member

Registered: 09/02/06
Posts: 361
Loc: North East PA
Great, thanks for the information. I will rip it apart Sunday instead of going to the Pocono race. I will look for an OD band, but I guess its going to be a dealer part.
_________________________
2008 CVPI
271,000 miles. J-mod, Mo's 93 octane tune. Steeda Under drive Pulleys. Trick Flow Ported and polished Plenum. BBK 75mm TB. Metco control arms. Some kind of Flowmasters.

1998 CVPI
215,000 miles Refurbished at 87,400 miles, sleeping for now.

Top
#2572219 - 08/03/12 06:03 PM Re: Overdrive slipping [Re: [email protected]]
Run4orest Offline
Member

Registered: 10/13/11
Posts: 477
Loc: NC
Cool...

Dealership part is my bet but never know, you could just call NAPA for grins and or a potential backup / out-of-stock option?

Hopefully if ya call around today ya might get lucky and snag one before the weekend that is OEM (a part like that I would prefer OEM myself)..

Searched a bit and only found this (so far) on the OD Band in the J-Mod write up:

"Before we go further, letís look at the components to get a basic understanding of how they work together. The picture shows a typical OD band along with a 2.7Ē OD servo and stock OEM return spring. I wonít get into a discussion of the hydraulics, but the OD band is essentially a clamp that tightens or loosens around a rotating drum. The band is fixed into position at one end (note the anchors at each end of the band), with the OD servo pin engaged in the anchor at the opposite end. The pin is never loose from the band, it actually always maintains contact with the band anchor to keep some tension on the band.
The OD band tightens around the drum when hydraulic pressure is sent to the OD servo which in turn pushes the servo up into the band and then loosens when the pressure is released. The return spring helps to release the OD servo quickly and it also helps determine the rate of application of the servo onto the band. The stiffer stock spring helps to slow down the application, resulting in a smoother overall shift feel to OD. I want a firmer application, so I am installing the softer spring."

It is in this Thread:

J-Mod Help - Crownvic.net

Best of luck and if ya have time take some pics (could not find any for ya) would be great to have some of the process if you have the time, again good luck!
_________________________
05 P71 Daily Driver - 140K - LCM Relay Up-grade - Ford PI Racing Manifold - Serpentine Tensioner - PCV - Fuel Filter - All fluids - MP3 - Depo Lenses - Nip Tuck Bumper - Antenna Plugs - 17" OEM Wheels - SAP Conversion - Viper - Fire Extinguisher - Flashlight - Aftermarket Lug Nut Wrench


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#2572739 - 08/04/12 07:38 PM Re: Overdrive slipping [Re: [email protected]]
[email protected] Offline
Member

Registered: 09/02/06
Posts: 361
Loc: North East PA
Does anyone have any last minute tips? I am going to pull out the transmission Sunday. I am going to change the od band. Everything else works fine, the fluid is red and smells good. Just to recap, od just stopped working driving down the road. All other gears pull hard, and it slips in 2nd, only when the selector is in 2.

Thanks for your input.

P.s. should I get a Kevlar band? And new solenoid?
P.s.s. should I do the j mod? Or wait till I get it working right.
_________________________
2008 CVPI
271,000 miles. J-mod, Mo's 93 octane tune. Steeda Under drive Pulleys. Trick Flow Ported and polished Plenum. BBK 75mm TB. Metco control arms. Some kind of Flowmasters.

1998 CVPI
215,000 miles Refurbished at 87,400 miles, sleeping for now.

Top
#2572796 - 08/04/12 10:06 PM Re: Overdrive slipping [Re: [email protected]]
martz0r Offline
Over the Hill

Registered: 04/29/08
Posts: 4295
Loc: Punta Gorda, FL
The j mod shouldn't hurt anything, you may want to do it, just be easy on it for the first couple hundred miles so you know everything is good.
_________________________

'07 Durango HEMI Limited 4x4
Previously: '90 Grand Marquis LS |'97 LTC|'03 LX-Sport|'06 P71|'03 P71|
Panther Seat Cover Removal - Overhead console display fix

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