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#1805228 - 07/05/09 09:49 AM O/D shenanigans
TheMarquisPlaya Offline

Over the Hill

Registered: 12/15/06
Posts: 2130
Loc: Cornwall, NY
Interesting problem with my car, its otherwise healthy 4R70, and engaging O/D:

Perfect case in point- passing a car on a two-lane road. At 50 or so mph, I'll kick it down first to Third, wait a sec, then down to Second. Blast past the slow car, ease off the gas, it goes into Third... and will not go into OD unless you

- Hit the O/D off switch twice (first to lock it out, then to re-engage)

or

- Lightly feather the go-pedal, basically forcing the upshift.

When it goes in, there's no slippage. I can't figure this out. I had the throttle body/plenum off the car for cleaning a few months back and I'm wondering if that threw the TPS out of calibration (would this have to do with when it shifts?). I also did my accelerator cable adjustment took slack out of the cable) but seeing as the shifts are electronically controlled I can't see this being the problem.

Ideas? Search revealed no one with a similar issue.
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Former Panthers:
1995 Grand Marquis LS (12/06 to 8/07)
1997 Grand Marquis GS HPP (11/08 to 12/09)

Current Panther:
2004 Grand Marquis LS Ultimate (11/19-present)
98k and very, very slowly climbing
It's good to be back.

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#1805307 - 07/05/09 12:25 PM Re: O/D shenanigans [Re: TheMarquisPlaya]
Ask_The_Shack Offline
Over the Hill

Registered: 02/26/06
Posts: 4799
Loc: Long Island, NY
Did someone say shenanigans?



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#1805679 - 07/05/09 09:49 PM Re: O/D shenanigans [Re: Ask_The_Shack]
TheMarquisPlaya Offline

Over the Hill

Registered: 12/15/06
Posts: 2130
Loc: Cornwall, NY
1 reply, 50 views, I guess this behavior is normal with this transmission?
_________________________
Former Panthers:
1995 Grand Marquis LS (12/06 to 8/07)
1997 Grand Marquis GS HPP (11/08 to 12/09)

Current Panther:
2004 Grand Marquis LS Ultimate (11/19-present)
98k and very, very slowly climbing
It's good to be back.

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