Surging when engine is cold at low speed - Mustang Evolution

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Old 04-24-2014, 07:19 PM   #1
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Surging when engine is cold at low speed

First let me say I love my new 2014 GT with Track Pack. I have owned it 2 weeks and I noticed when the engine is cold I can't seem to get the car to drive at a low constant speed without it surging or lurching. This would be like crawling at parade speed or even up to maybe 15 or 20 mph in 1st 2nd or 3rd with the key just trying to keep the car at a steady speed. It will start small lurching and will grow bigger and bigger to a buck if you don't push the clutch in. It's like the engine is on a roll up and down. If I'm accelerating so I'm out of the parking lot or have some open road it doesn't do it. As soon the the engine is warmed up it then will creep along with no lurching or surging of any kind or can hold any constant or steady speed. Also the shift feel when cold in 2nd and 3rd is very notchy or metallic but I read that is normal and again after a few miles and the transmission oil warm up it's fine. Oh and since I have the track pack I have the 3:73 gear set.
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Old 04-24-2014, 07:21 PM   #2
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My 11 and roomates 12 are this way too. Jerky unless engine is warmed up
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Old 04-24-2014, 07:45 PM   #3
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Ok, So it must be normal. My other standard shift cars never did that but none if them had so much HP
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Old 04-24-2014, 07:48 PM   #4
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It does make me feel like I don't know how to drive a M/T when it does it even though I have owned a M/T for years. Glad it's not me causing it.
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Old 04-24-2014, 08:37 PM   #5
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I have a 2013 with 1500 miles, 3:31 gears on it and mine does the same thing in the parking lots..since I have had the car for only 3 weeks I have no idea if that is normal. Lol. I did find that putting it into second gets rid of the lurching. Just not sure if that is a good thing to do.
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Old 04-25-2014, 12:57 AM   #6
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Mine does this in 1st gear. I thought it was just my foot lol. I think the jerking causes you to modulate the pedal more and amplify the effect. A really steady foot can sometimes avoid it.
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Old 04-25-2014, 04:51 AM   #7
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Wow, it certainly must be normal I guess but a bit annoying. We have a very large parking lot at work then about 1/2 mile of industrial park roads before I can get out onto the public streets. Most of the people I work with already thing I had a senior moment for buy my GT but it adds fuel to the fire if I'm jerky surging all the way out of the lot - lol. Not that I haven't given them plenty of ammo with all the cars I have and do own. My first car when I was 16 was a used 66 Mustang then I bought a 65 2+2 project car and over the next 5 or 6 years had 1/2 dozen other Mustangs. Then we had our 3 sons and there was a 20 year Mustang drought. About 7 years ago I had surgery and while recuperating I visited a junk grad with a friend and saw all this old American muscle just rusting away - muscle cars of all types and brands with plenty of old Mustangs. The next day I went on the hunt for and bought a 2003 Mustang GT premium convertible but with an automatic so my wife could drive it. I owned it 5 years then sold it 2 years ago to my stepmother. It was on her bucket list and we agreed if her every decided to sell it I would have first right of refusal plus when we visit (the car is in Florida and I am in RI) I can use it. Now to the 2014 GT - when I saw pictures of the 2015 Mustang I wasn't sure I liked it and thought it would be several years after it was launched before Ford would discount them or offer any special models or packages so I went to look at the remaining 2014's
I ended up finding an awesome Oxford White GT premium with Red leather interior, side scoops and quarter window louvers and the Ford Racing Track Pack with 3:73 rear end 6 speed. It's awesome and the most powerful car I've ever owed.
Whew!! Sorry for the long post - I should have used this for my introduction post.
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Old 04-25-2014, 11:19 AM   #8
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I have the track pack as well, you could try a second gear start, it might be smoother and you definitely have enough gear and power for it
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Old 04-25-2014, 04:40 PM   #9
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Surging when engine is cold at low speed

My 2013 gt does the same thing. I just shift quickly into second. I have 20k miles on my car so I'm used to it by now.
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Old 04-25-2014, 10:27 PM   #10
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Yeah. It's just the way these cars are. Doesn't bother me really. I'm not one to typically fire it up n start rolling. I'll let it warm up a bit. But to those who are questioning this phenomenon, let it go. They just do it.
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Old 04-26-2014, 05:16 AM   #11
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Ok, thought that might be the case. Either way still love the car - it's such a Beast!
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Old 04-26-2014, 09:03 AM   #12
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Have the same issue with my premium GT 2014 Oxford White and I was going to see the dealership this week. Now maybe not.
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Old 04-26-2014, 09:28 AM   #13
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Me too. 11 auto gt
with bama race tune
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Old 04-26-2014, 09:42 AM   #14
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I also have this kinda thought it was cold tires. N
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Old 04-26-2014, 10:12 AM   #15
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If you end up going to the dealer with your 2014 I'd be interested in what they say about it
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Old 04-26-2014, 10:29 AM   #16
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+1
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Old 04-26-2014, 10:32 AM   #17
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Mine also does it. Worse after tune. I thought it was the two piece drive shaft. I usually let it warm up so I don't really notice a warm vs cold diff.
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Old 04-26-2014, 11:03 AM   #18
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It's an 11:1 compression V8 with over 400 hp. The only reason this thing is able to run smoothly is because of modern closed loop engine management. A little pickiness before fully warmed isn't unexpected. You wouldn't even be able to get this engine to start and idle on the ECM technology of 10 years ago. It is what it is and amazing in what it does.
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Old 04-26-2014, 11:57 AM   #19
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Quote:
Originally Posted by 5LHO View Post
It's an 11:1 compression V8 with over 400 hp. The only reason this thing is able to run smoothly is because of modern closed loop engine management. A little pickiness before fully warmed isn't unexpected. You wouldn't even be able to get this engine to start and idle on the ECM technology of 10 years ago. It is what it is and amazing in what it does.

Well said bud
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Old 04-26-2014, 12:38 PM   #20
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I remember back in the Foxbody days a 400 horse 5.0 would have been the pretty rip-snorting undriveable b8tch, race-gas-only car and those cars had sophisticated engine management for their day....

Hell, Ford sells a PR 5.0 crate motor with the benefit of 20+ years of development and only claims 345 flywheel for it, with pretty wicked heads and cam.

The new 5.0 makes over 400 on 11:1 and pump gas 87, ferchrissakes. These are the good old days.
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Old 04-26-2014, 01:02 PM   #21
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Yes. We are really lucky to have Ford back on top with high revving dohc vvti v8. Im just lucky enough to be able to afford one during this time

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Old 04-28-2014, 03:07 PM   #22
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I have a 13" GT with about 8000 miles and it does it as well. I just shift or push the clutch in to stop it. I've been wanting a mustang for many years and I'm happy I was able to get one with over 400HP factory. Love it and yeah sounds like a normal thing with them.
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Old 04-28-2014, 03:13 PM   #23
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I have a 2011 GT and a 2004 Saturn Vue, both manual, both do this. It probably looks funny when I'm in stop and go traffic during rush hour on the interstate and I'm trying to coast in 1st gear and I'm rocking back and forth . I think it's normal though, nothing to be concerned about.
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Old 04-28-2014, 03:23 PM   #24
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I get accused that I don't know how to drive a manual because of this. Oh well, I just shift to 2nd real quick when this happens.
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Old 04-28-2014, 05:22 PM   #25
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It's normal and really not that big of a deal. I have a tune that makes it worse but it's gone once it's warmed up. You have to remember a tune will make the accelerator drive by wire which makes it more sensitive if it's cold
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Old 04-28-2014, 06:39 PM   #26
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I have a 2013 gt with Brembo and track pack. And mine does this as well. I usually just wait till the high idle levels off and it seems to help.

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Old 04-29-2014, 12:38 AM   #27
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Hell yea!
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Old 04-29-2014, 03:47 AM   #28
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Either way I love my new GT
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Old 05-01-2014, 09:34 AM   #29
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Yup happens on mine too. Once warms up it goes away. I do what so many others are saying. Shift quickly into 2nd.

EDIT: I almost forgot. Be sure to wait until the high revs after you start the engine levels off. That really helps a lot.
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Old 08-26-2014, 12:31 PM   #30
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Just a follow up on my original post. The past couple of weeks the morning temps have been getting cooler (mid to high 50's) and the cold engine surging or stumbling id worse than ever. This morning it was so bad I ended up pushing in the clutch punching the throttle not that my rage fixed anything. It's just not acceptable in this age of engine managment for this very poor running condition to exist. Has anyone had a fix for it other than trading the car in? Sorry just in the hustle and bustle world of live and work no one has time to let there new car warm up to operating temp before it can be driven properly. Do the 5.0 automatics has this same issue? I have a few freinds one with a new Vette and the other a Camaro and neither has this issue.
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Old 08-27-2014, 08:24 AM   #31
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Just let it warm up for like two whole minutes. That's it.
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Old 08-27-2014, 08:42 AM   #32
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Mine is auto, but notice a burble in park @ idle when first started. I just assumed it is tuned fairly aggresive and am not too worried about it. The one I test drove before I bought mine did the same thing.
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Old 08-27-2014, 08:48 AM   #33
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It's a minor burble in park for me, but that's it. I normally start it, wait about 10-15 seconds, then go.
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Old 08-27-2014, 09:04 AM   #34
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This drives me crazy too. I just speed up real quick. Happens every morning to me.

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Old 08-27-2014, 09:36 AM   #35
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Thanks - it's much more than a burble with the 6 speed. I mine takes about 3 mikes to settle down. I can't speed up because its in town small roads and about 5 miles before I get to the highway or speed limit over 30 mph. Maybe I will take it in and have it looked at. Just drives me crazy that it does it.
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