Question about 2000 Mercury Cougar

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Shifting problems on my 2000 mercury cougar i drive for about 10 mins and when it gets hot it will come out of overdrive. the longer i drive the worse it gets. sometimes it will go into neutral then 2nd and really jerks the car hard. cant drive it long distances. the car never gets over normal operating temperature. at night, when the lights are on, when it starts doing it the lights dim very erratically. no one seems to know what the problem is.

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The lights diming is the fuel pump recall or the altinator cant spell i put 7 on my silver 2000 the factory one is made of lead i got mine hot and run into a storm it got wet and cracked i got mine at auto zone it was 149 dollars napa n advance was 249 i ended up at o relieys and got one for 179 or 189 work great

Posted on Aug 27, 2010

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Hello, has anyone changed the transmission filter? if not, this is likely your base problem, a restricted filter will cause low line pressure too and from tourque convertor and cause engine too drag and shift very harshly.........good luck, marty

Posted on Jun 04, 2009

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Change the transmission oil and filter, and the speed control sensor.

Posted on Jun 04, 2009

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2 Answers

I have a 2001 Mercury Cougar. It throws code p1780. I have replaced the Neutral Safety switch and still throwing the same code.


The overdrive button is different than a neutral start switch. Your problem could be underneath the car where the transmission wires plug in.

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1 Answer

What is p0720 fault code 1996 mercury cougar rx7?


I would check the trany fluid level ASAP before the trany is no good and if the problem still persits try replaceing the output speed sensor. which should be on the trany with 2 or 3 wires.

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You need to run the OBD2 Diagnostics. You will need to have someone hook up a scanner to the vehicle and retrieve the codes. This is the best place to start.

Feb 23, 2013 | 2000 Mercury Cougar

1 Answer

Won't shift into overdrive


Should be in overdrive & converter locked
at 42mph or about-- unless your flooring the gas

Internal Solenoid Problem or Valve Body Dirty

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I assume he tried pushing the button again?
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Sep 30, 2011 | 1999 Mercury Cougar

1 Answer

The overdrive is not working


Cars that old usually encounter faulty over drive problems. It burnt out so many miles ago. It's probably a good thing...over drive's that old usually run your engine hot anyways.

Apr 18, 2011 | 1991 Mercury Cougar

1 Answer

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On that model it is almost always the torque convertor.

Apr 10, 2009 | 2000 Mercury Cougar

1 Answer

1996 mercury cougar xr7 shifting problems


the wires for the sensor module where they cut or the plug disconnected?your talking about the module that is mounted on top of the transmission by the gear changer

Jan 15, 2009 | 1996 Mercury Cougar XR7

1 Answer

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Something wrong with the Overdrive.Is it a sensor or a control module.Sounds like it might sounds like it gos worse after you hooked it up.Did you just buy the car?

Jan 15, 2009 | 1996 Mercury Cougar XR7

1 Answer

Shifting problem


Check the vac lines to the trans, inspect for loose or damaged hoses. also for leaks at the manifold where lines start.

Jul 10, 2008 | 1988 Mercury Cougar

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