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  #1  
Old 08-06-2002, 07:28 AM
pinggy79
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Car Jerk Hard when changing from 1st to 2nd gear

W202 C 280 1994' Mileage: 138000km Auto

My car jerks pretty hard when changing from 1st to 2nd gear. Can anyone tell me what is the problem?
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  #2  
Old 08-06-2002, 08:21 AM
it leaks, its german
 
Join Date: Mar 2002
Location: raleigh nc
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Front band apply piston, either leaking or needs reshimming. (a dicy proposistion at best)




Joe
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  #3  
Old 08-06-2002, 08:46 AM
it leaks, its german
 
Join Date: Mar 2002
Location: raleigh nc
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A little clarifacation, B2. And only if the other shifts are in line, if they are all hard, turn the modulator in 1/2 turn until it's pretty smooth. (yeah, you should have it guaged for this but, you can get pretty close as long as you stay on the firm side)



Joe
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Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.
Raleigh NC
919-881-0364
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  #4  
Old 08-06-2002, 03:26 PM
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Disconnected or leaking vacuum line to modulator can also cause hard shifts, but as Joe stated, it should be all of them. Not just 1 and 2.
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  #5  
Old 08-06-2002, 06:58 PM
Bud
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Can anyone point me to Info or a procedure for checking for correct vacuum to the modulator on a '91 300E automatic?

Mine has shifted very, very firmly since new. It's OK with the A/C off but gets hard when it's on.

Thanks in advance,
Bud
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