4.6 Throttle Response
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4.6 Throttle Response
I have been reading alot about people with th 5.4 and a delay in the throttle response but was wondering if anyone with the 4.6 has experienced this and what did they do about it(computer reflash, ets). I have a 2004 SCAB with the 4.6 , 2500 mi and used to have a 97 SCAB with the 4.6. The 97 seemed to have much better low end throttle response than the 2004 drive by wire 4.6.
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I feel it in my 2004 4.6 Reg Cab. I've got an appointment for next Friday to see if I can get it flashed. Many have said the flash doesn't help that much but others have said it does. Apparently it changes the shift points also, which I'm looking forward to.
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Joined: May 2004
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From: Cincinnati, Ohio
My dealer would not reflash for the thottle response issue because they said it was normal?????? But they did for the AC not being cool enough and the latest flash took out a lot of the lag that I was expieriencing on my truck.
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Slow Throttle Response
Originally Posted by MiamiE
i want to get mine reflashed also. what could i bring up to get the reflash done?
Lead Driver
Joined: Apr 2002
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From: Tampa Bay, FL USA
Originally Posted by gmtcm
...The new one almost got me in trouble trying to get across an intersection with out getting t-boned from an oncoming car.
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Throttle Responce
Yes, that is my concern completely, is this a problem or the way they are supposed to be????? 
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I have the 4.6 STX regular cab with the same problem. I am going to call this week to see if I can get my computer reflashed. I'll post the outcome once it's completed.
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I had my 4.6L 2004 XLT reflashed today. I can't really tell that it did anything for the throttle lag.
In the Tech Notes on the invoice it says this: "Reprogram PCM to latest calibration which has some fixes for throttle response concerns."
In the Tech Notes on the invoice it says this: "Reprogram PCM to latest calibration which has some fixes for throttle response concerns."
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