#3658498 - 06/10/17 01:26 PM
transmission slipping in OD at 40mph
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n00b
Registered: 05/20/17
Posts: 33
Loc: Somerset county NJ
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Hello,
Trying to find out if this is something to worry about,
I have a 2010 CV with 81k miles and (9400Hours)
The transmission shifts fine and holds fine at WOT,
Even at highway speeds OD is fine, but when it shifts in at 40 and i give it more throttle, i can feel it slipping, but once i hit 50 its fine,
Is it anything to be concern about?
(my OD switch doesnt work)
Thank you,
Dave
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2010 P71 81K miles (9500 hours idle)
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#3658506 - 06/10/17 01:51 PM
Re: transmission slipping in OD at 40mph
[Re: Dave2500]
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n00b
Registered: 05/20/17
Posts: 33
Loc: Somerset county NJ
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forgot to add there is no check engine light on
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2010 P71 81K miles (9500 hours idle)
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#3658690 - 06/10/17 06:35 PM
Re: transmission slipping in OD at 40mph
[Re: Dave2500]
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Over the Hill
Registered: 05/10/10
Posts: 4420
Loc: Virginia
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Transmission slippage that can be felt is BAD, you need to determine the cause and correct it...
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1998 Grand Marquis LS. 96K mi. .. Stock 2007 Grand Marquis GS. 90K mi. .. Stock 1996 F-150 XLT 196K mi Beater, Stock ---------- My Toys--------- (links are up)1969 Fairlane Cobra 428CJ 4-Speed 1972 Comet GT Restomod 306, C4 1988 Turbo Coupe 331 AOD & 3.73 .. Pressurized ½ Motor is History *****************NEW TOY!!!*********************1969 Base Fairlane 302, C4, 45K mi(really!) Now with P/S & PDB Gonna wake it up with a Blue Print headed 347
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#3659098 - 06/11/17 03:45 AM
Re: transmission slipping in OD at 40mph
[Re: Dave2500]
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Rookie
Registered: 10/21/16
Posts: 78
Loc: Finland
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How can you determine it's gear slipping and not that torque converter lock opens? That's what my car does. Torque converter is locked at 40 mph if I'm gentle with throttle. If I give more throttle lock opens. That's how it should work I think.
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Crown Victoria P71 SAP 2003. For sure not less than 129000 miles.
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#3659322 - 06/11/17 01:19 PM
Re: transmission slipping in OD at 40mph
[Re: Dave2500]
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n00b
Registered: 05/20/17
Posts: 33
Loc: Somerset county NJ
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well, it is almost like your going over small bumps in the road and makes a little squeaking noise,
The fluid seems to be over filled by about 2"
Would dropping the pan and changing the fluid filter be worth it or just a waste of money at this point?
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2010 P71 81K miles (9500 hours idle)
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#3659338 - 06/11/17 01:24 PM
Re: transmission slipping in OD at 40mph
[Re: Dave2500]
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Poobah
Registered: 12/14/02
Posts: 7476
Loc: MA
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it is almost like your going over small bumps in the road That sounds just like the infamous torque converter clutch shudder. The fluid seems to be over filled by about 2" Well, that's wrong to start with. Definitely drop the pan, change the filter, and refill with the proper quantity of Mercon V. Be advised that if it IS TCC shudder, it may take a few miles of driving for it to subside after the change.
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'03 Mercury Marauder (The Blackbird)
Trilogy Motorsports supercharged #61
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'04 Grand Marquis LS Limited Edition (Spruce Green)
Daily Driver (Thanks, Adam!)
'00 Grand Marquis GS (Silver)
Rotted frame and broken transmission crossmember
Being resurrected...slowly.
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#3659346 - 06/11/17 01:31 PM
Re: transmission slipping in OD at 40mph
[Re: RF_Overlord]
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n00b
Registered: 05/20/17
Posts: 33
Loc: Somerset county NJ
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thank you i will drop the pan today and clean it out.
Will let you know how i make out
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2010 P71 81K miles (9500 hours idle)
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Posts: 4890
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