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#1
06-30-2005, 11:48 AM
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Engine or Transmission Shudder before moving
'91 t-bird 3.8 - 152k
I've had this problem alot recently (past 6 months). Always notice it more on a cold engine. Right on start up when taking the foot off the brake pedal... even if I slam on the gas or very lightly hit it... it will shudder before going anywhere. After that it will be fine... but just that first shudder before going anywhere then it will acellerate. The shudder or vibrate ,like the car is trying to go, is a very fast one. It lasts for about one second total. Is this a tough one? could it be anything? It kind of sounds a little tranmission related. I changed my fuel filter about 8month's ago then had a fuel induction cleaning and have been using fuel injector bottles every other tank. Think I just need to change the fuel filter again? I need an area to focus on , so im just guessing. any tips or advice would be appreciated. 
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#2
06-30-2005, 07:37 PM
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Re: Engine or Transmission Shudder before moving
Transmission Torque Converter (Atleast thats what it sounds like).
Welcome to one of the many joys of owning an MN12. Flush the fluid, clean the magnet/pan, replace the filter. Some guys say to go with Mercon V. I used Mercon III after a Sea Foam Flush... havent had a problem.
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2002 F150 SuperCab FX4 6" Fabtech, 3" BL, Detroit locker, Edge tuned, Yukon 4.56s, 37" Nittos, Harley lights, Depo fogs, 8K HIDs, Powerstop brakes 1992 Lincoln Mark VII LSC 302 H.O, A9L ECU swap, 65mm TB, 73mm Granetelli MAF, FRPP 30lb injectors, Walbro 255, MSD ignition, Powerdyne BD11 supercharger, Efans, T-5 swap w/ FRPP flywheel, Ram HDX clutch and adjustable Steeda clutch quadrant, 4.10 gears, Nitto NT555R radials 2000 OBS Tahoe Z71 6k HIDs, 33" Goodyears. 280k mile daily beater
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#3
07-01-2005, 12:21 PM
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Re: Re: Engine or Transmission Shudder before moving
Quote:
 I already did all of the things listed above and am using mercon III w/ a treatment of Lucas Tranny Conditioner.ah that sucks... Is the torque converter still fuctional for a while like this? Yep, the joys of an MN12!
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