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Make sure parking brake is adjusted properly and not partially engaged and then try changing Transmission Fluid and filter (had a similar problem)

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Q: Why would a 2000 merc grand marquis shudder before tranny down shifts?
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Have a 1985 Grand Marquis tranny shifts between the lower gears very fast was told it was a fuse or vacuum problem but it also started to leak do you think the tranny's took a dump?

Sounds like the transmission pressure sensor is bad or usually the wire breaks off and it will cause this


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The sign i had before my tranny was toast was the whole care vibrates when shifting between 35 and 45 miles an hour.


I own a 1996 Mercury Cougar xr7 which runs great. however the car makes a vibrating noise after it shifts from first to second gear do you know what that vibrating is?

The problem is trans. shudder if you have an automatic. I had the same problem in my 1996 cougar,when it would shift from second to third gear. Very easy and cheap to fix, I bought "Mr. tranny instant shudder fix" anout $7 at a NAPA store. After 5 months its starting to come back so I will add another. Good luck.


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How do you know if your car transmission is bad?

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Can you replace a r700 with a 4l60e?

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If a 1995 Suburban shifts smoothly from 1st to 2nd but does not shift from 3rd or overdrive yet shifts smoothly back and runs normal what could be wrong?

sounds like you burned out some bands. i would take it in and have it checked before you burn out the others. I would also have a tranny radiator/cooler put on. This will sve your tranny if your engine ever overheats. By the way, has your engine overheated in the past 6 months to a year. If so then I know its your bands.


How can you access the Oddometer head on a 1992 Grand Marquis to see why it's not counting the miles any more Thanks Driller - but can you be more specific about the 'gear in the tranny'?

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When your 1992 Town Car shifts gears it sometimes vibrates. What could the problem be?

You need to change fluid from both the pan & torque converter {has plug} ---also add a "limited slip differential treatment" {aprx. 4 oz.} Vibration will quit usually before 25 miles. Change the transmission fluid to Mercon V or ATF-3 (Chrysler qualified). The vibration is caused by torque converter clutch shudder during engagement in 3rd. Another possible source of shudder is caused by synchronous bind of 3rd and 4th gears during the shift transition which can be tuned out by a valve-body modification. In any case, the proper fluid will correct the trouble. Answer Most Ford products have a problem with tranny shudder. A good transmission shutter fluid will correct the problem within 25 miles of driving.