06' GT Cold Engine start issue

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10-09-2009, 12:47 PM

#11

MustangRacing4.6ltr

Kenmore Fan

Join Date: Jul 2009

Location: co

Posts: 138

it does it to mine cold or not and i just assumed it was normal but lol i like it nice mean aggresive start with loud a$$ exhaust

10-10-2009, 12:03 PM

#12

Stoenr

5th Gear Member

Join Date: May 2005

Location: S.burbs Chicago

Posts: 4,793

Quote:

Originally Posted by HaneyMotorsport.Com

Yes, this is normal. The pcm/Ford has "rpm adders" for air intake and coolant temps during start up.

Casey

Bingo.
And don't try to take off right away, they seem to stumble hard if you dont wait 10 seconds or so.

10-14-2009, 08:34 AM

#13

Dame83

1st Gear Member

Thread Starter

Join Date: Oct 2009

Location: Maryland

Posts: 120

Ok, well I didnt clean the throttle over the weekend, seems to be a normal thing with the Mustang. No use of taking stuff apart.

10-15-2009, 03:06 PM

#14

sphillips23

Join Date: Feb 2006

Location:

Posts: 27

I have an 06 gt to. Mine does the same thing, if you let it run for a little while it will drop down to around 1000 then after warms up will idle around 700.

If you take off to early and not let it run for a few seconds then when you idle it will go back and forth between 500 and 700 a couple of times then stay at 700.