V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

wtf is wrong

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Old Aug 1, 2007 | 10:50 PM
  #1  
ernesto's Avatar
ernesto
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Joined: Jul 2007
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Default wtf is wrong

My 2002 5 speed. WhenI am shifting gears the rpm stays stuck at the point wereI shifted. When the car is moving I put it inneutral,andtheengine stays reved up until the car comes to a complete stop then the rpms just drop down to idle. When im at a complete stopI rev it up high and the rpms drop down just fine.(Thisproblem only happens when the car is moving)I have changed the IAC and the TPS nothing has changed, can anyone help. THANK YOU
Old Aug 1, 2007 | 11:14 PM
  #2  
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wmrcer
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Joined: Aug 2006
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Default RE: wtf is wrong

i was goin to say the tps but since you changed it i wont know....thats the same thing mine acted like when i forgot to connect it back to the throttle body
Old Aug 2, 2007 | 12:08 PM
  #3  
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raz54
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Joined: Jan 2007
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From: Eureka, Ca.
Default RE: wtf is wrong

The rpms are supposed to stay up between shifts for several seconds. How long is yours staying up?
Old Aug 2, 2007 | 05:45 PM
  #4  
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MantaDreams
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Joined: Oct 2006
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Default RE: wtf is wrong

diag codes?
hunt for vacuum leak?
throttle return spring?

that would be my approach given the same symptoms
Old Aug 2, 2007 | 11:13 PM
  #5  
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dakooler1
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Joined: Mar 2007
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From: San Antonio, Texas
Default RE: wtf is wrong

when my car is cold it does that. the rpms will stay up and not really drop until i shift and then they basically have to drop and if i put it in nuetral the rpms will just stay at like 2K until i come to a complete stop and then they will drop. i figured out that if thats happening i just need to stop put my car in neutral and let my car fully warm (until the rpms are like 700) and then i can drive and everything will be normal. it just happens if im driving and my car is cold.
Old Aug 2, 2007 | 11:14 PM
  #6  
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ernesto
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Default RE: wtf is wrong

the motor stays reved up until i come till a complete stop. so if im taking off in first gear i wait till my rpms are at about 3,000 i step in on the clutch and the rpms stay at 3,000 until i make a complete stop even if the car is in neutral.
Old Aug 2, 2007 | 11:43 PM
  #7  
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wraaaa
 
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Default RE: wtf is wrong

is your air conditioning on?
Old Aug 2, 2007 | 11:45 PM
  #8  
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winner99
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Joined: May 2006
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From: New Jersey
Default RE: wtf is wrong

ORIGINAL: dakooler1

when my car is cold it does that. the rpms will stay up and not really drop until i shift and then they basically have to drop and if i put it in nuetral the rpms will just stay at like 2K until i come to a complete stop and then they will drop. i figured out that if thats happening i just need to stop put my car in neutral and let my car fully warm (until the rpms are like 700) and then i can drive and everything will be normal. it just happens if im driving and my car is cold.

Same exact thing. After it warms up it doesnt do that when your stopping. I did the IAC mod trick and its 10 times better now. Also sounds better.
Old Aug 3, 2007 | 09:52 AM
  #9  
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jthorn9
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Joined: Sep 2005
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From: Temple, Texas
Default RE: wtf is wrong

When shifting the RPMs are supposed to hang until you fully let off the clutch and are in the next gear, also, when you put the car in neutral, of course the RPMs are going to stay high, they have to rev down first, they're jst not gonna drop to nothing because you threw the clutch out. I really think you guys have a bad misunderstanding of how manuals, and more importantly, the clutch works.
Old Aug 3, 2007 | 10:52 AM
  #10  
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ernesto
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Default RE: wtf is wrong

when im shifting to another gear the rpms stay at 3, 000 they will stay there forever as long as the car is moving clutch out or in,in neutral or any gear a/c off or on it doesnt make a difference. it has not turned on the check engine light. i have to make a complete stop for the rpms to drop back down to idle. in the morning it does not do it as bad but once the car is warmed it is real badits kind of embarrasing rolling up to a red light cause some rice burning importthinks i wanna race



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