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Lunging forward while slowing down

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Old May 24, 2004 | 11:30 AM
  #1  
MuscleMachine's Avatar
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Lunging forward while slowing down

While slowing down, it feels like my tranny downshifts and in the process, the truck lunges forward.
I drive an automatic 2wd 87 F250. What should I look into?



BTW, I posted it here because I'm not sure whether this is a model specific issue or not.
 
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Old May 24, 2004 | 03:26 PM
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I would say vacuum or distributor related.
 
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Old May 25, 2004 | 04:24 AM
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How should I go about troubleshooting?
 
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Old May 29, 2004 | 11:28 PM
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Suggestions?
 
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Old May 30, 2004 | 08:37 PM
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the 87's forum will be a better place to ask , here's a link to it.

https://www.ford-trucks.com/forums/f...splay.php?f=28

or here in the transmission forum

https://www.ford-trucks.com/forums/f...splay.php?f=69
 

Last edited by f=2504by497; May 30, 2004 at 08:40 PM.
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Old May 30, 2004 | 09:42 PM
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Hey MuscleMachine,

If you give me your Vin I can run a check with Ford and they will give me all of the info for your vehical. I can then relay that back to you.

If I remember correctly you are probably running the E4OD tranny, in which this is normal while you have the O/D off
 
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Old May 30, 2004 | 09:50 PM
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Since it's transmission related, it belongs in the tranny forum...Moved
 
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Old May 31, 2004 | 11:38 AM
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i remember when my carb was acting up it sure felt like my truck was lunging forward(felt kinda like downshifting)
 
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