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07-20-2010, 07:46 AM

#11

ODDYSEY

Site Moderator of Fury!

Join Date: Aug 2007

Location: Houston, TX

Posts: 5,104

Welcome to the forums malkaysi, glad you like your 'stang. The idling will get smoother also as the engine breaks in more as well.

07-20-2010, 08:05 AM

#12

p51mstg

2nd Gear Member

Join Date: Apr 2007

Location: The Hinterlands of Minne-snow-ta

Posts: 401

Quote:

Originally Posted by malkaysi

Oh, btw, this car is sexyyy

They sure are - congratulations on your new car! I'm saving my pennies for a 2011+, mainly for the engine, but also for the "new and improved" exterior.

I don't bother to warm up any of my vehicles, unless the windshield is covered in frost. However, I have noticed higher rpms at startup from both my 07 V6 and 05 GT, and for a longer duration, than other vehicles I've driven (even other Fords).

So, it must be a "Mustang thing". Could even be the goofy potentiometer under the accelerator pedal, because the throttle response in 05+ Mustangs is different than when the pedal was connected to a cable. My Mustangs have been the only throttle-by-wire cars I’ve driven, and maybe that’s what causes it.

Last edited by p51mstg; 07-20-2010 at 08:20 AM.

07-20-2010, 09:07 AM

#13

07 Stang

6th Gear Member

Join Date: Jan 2007

Location: Southeast Virginia

Posts: 6,409

I usually start it up, fold the sun shades, buckle up, put on my sunglasses and I'm ready to roll!

07-20-2010, 09:14 AM

#14

kevinmalec

5th Gear Member

Join Date: Apr 2008

Location: Acworth, GA

Posts: 3,666

Congrats on your new Stang!!!! Once I start my car, it idles high and then goes down to normal RPM's after 20-30seconds. This is normal.

07-20-2010, 09:48 AM

#15

malkaysi

Thread Starter

Join Date: Jul 2010

Location: Maryland

Posts: 21

Thanks Guys!

Also on a side note, has anyone notice how nice the engine sounds when you start it? It makes my heart melt.

07-20-2010, 11:14 AM

#16

07 Stang

6th Gear Member

Join Date: Jan 2007

Location: Southeast Virginia

Posts: 6,409

Quote:

Originally Posted by malkaysi

Thanks Guys!

Also on a side note, has anyone notice how nice the engine sounds when you start it? It makes my heart melt.

Sounds even better when you have dual exhaust!

07-20-2010, 12:38 PM

#17

Nuke

6th Gear Member

Join Date: Jun 2007

Location: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)

Posts: 16,182

Quote:

Originally Posted by malkaysi

Thanks Guys!

Also on a side note, has anyone notice how nice the engine sounds when you start it? It makes my heart melt.

This is also a result of open loop (or is that closed loop? I'm so confused) operation when cold.

My g/f nearly slips out of the passenger seat on cold startup. She loves the sound of my GT but her V6 Pony sounds sweet, too, with my GT takeoff.

07-20-2010, 12:49 PM

#18

conejo172

4th Gear Member

Join Date: Jan 2010

Location: Arlington, Virginia

Posts: 1,305

Quote:

Originally Posted by malkaysi

I don't know if this is a common problem (search yielded no results)...butttt

Whenever I start up my '10 V6 stock AT, the engine will fluctuate between 1000-2000 rpms until i shift into drive. This happens anytime I start the car and is fairly noticeable. The car is still new (only 500 miles on it).

In my previous experience with others cars, this hasn't happened so I was wondering if this is normal for the mustang?

Thanks!

On initial start up it will be around 1200 rpms, after 30 seconds should be around 1000 and warmed up should be 750 rpms. Regarding fluctuating (going back and forth) between 1000 and 2000 seems odd to me even if your A/C is on!

Make sure you properly break in your car! It is possible because you are still in the break-in period it will act a little differently.