Transmission / Gear Shift Problem

1991 LINCOLN TOWN CAR
101,500 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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SCOTT G
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  • 4 POSTS
Car won’t start in Park but will in Neutral and drive. Shuts off when shifting to Reverse, Park or Low. Has a rough time from a dead stop to 10-15 mph. But once there, car seems to drive okay. Is this a misadjusted Neutral Safety Switch, stretched or bad mech cable? Any advice is much appreciated!!!
Jun 3, 2022 at 12:53 PM
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JACOBANDNICKOLAS
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Hi,

It does sound like the linkage is out of adjustment. When you select a gear, does the gear indicator show your selection?

As far as the neutral safety switch, it is located on the left side of the transmission. Check to make sure nothing is loose there as well.

I attached info on a nylon grommet that can fail and cause issues. Take a look at the pics below that explains how it's replaced. Not saying it needs to be replaced, but I'm hoping the pics help you locate the grommet.

Let me know if this helps or if you have questions.

Take care,

Joe

See pics below.
Jun 3, 2022 at 10:29 PM
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SCOTT G
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The gear selectors move pretty freely between gears. When in the "on" position, there’s no problem switching between gears.

If this helps, I was driving on the interstate, got ticked off at traffic and hit the gas a little too hard for such an old car. When I did that, it felt like something became disconnected while the transmission was shifting up. I honestly didn’t think I’d re-engage and continue driving but I did…

Now it starts in N and rolls forward, jerks pretty darn hard trying to increase speed until about 15-20 MPH, ABS, then seems to drive normally. In your experience, does this sound like a major repair ahead of me or is there a chance I might solve this for under a $100 ish? Thank you again for all your help!
Jun 4, 2022 at 11:01 AM
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JACOBANDNICKOLAS
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Hi,

Based on what you described, it sounds like an adjustment issue or something with the shift linkage.

Tell me this. When you place it in park, does the vehicle still roll like it is in neutral?

Let me know.

Joe
Jun 4, 2022 at 10:07 PM
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SCOTT G
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When in Park, it won’t start and doesn’t roll. Once started in Neutral, shifting into Park turns her off completely. The car only stays “engaged” in Neutral, Overdrive and Drive. All other gears, Park, Reverse and Low shut the car down.

Thanks again, big time for getting back with me!!!
Jun 5, 2022 at 5:35 AM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
Hi,

I don't understand why it would shut down when placed in park. Let's try this from a different point of view.

I need you to retrieve diagnostic trouble codes. The vehicle has an OBD1 system, so you don't need a scan tool.

Follow the directions in this link and let me know the results:

https://www.2carpros.com/articles/ford-lincoln-mercury-obd1-1995-and-earlier-diagnostic-trouble-code-definition-and-retrieval

Let me know what you find.

Joe
Jun 5, 2022 at 10:35 PM