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4.2 Stumbles

  #1  
Old 06-25-2007 | 08:25 PM
Braker 19's Avatar
Braker 19
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From: Southern Illinois
Question 4.2 Stumbles

When I take off from a dead stop the motor stumbles or hesitates. It dosen't do it all of the time, but, most of the time. Seems like it takes it second to get going. I have changed plugs, wires, fuel filter, and used fuel injector cleaner. No luck. When I have under a quarter of a tank it does it less. I'm stumped.
 
  #2  
Old 06-26-2007 | 01:06 PM
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ATC Crazy
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Joined: Jun 2003
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From: SW VA
It's most likely the IAC (Idle air control) valve. Im having the same problem with my 4.6L...but Im not ready to lay down $60 for the valve yet..
 


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