UNINTENDED ACCELERATION
#1
UNINTENDED ACCELERATION
I don't know what to think, but before I head off to my local Ford dealer I thought I'd ask. I bought a used 07 CS GT a few months ago, the car had 8200 mi. when I got it and I've driven it about 450mi. Two weeks ago while driving the car coming out of second gear the accelerator just took off out of the blue, and I caught it right away, scared he s$%t out of me, because the car is new to me I thought it my have been something I did with my feet, or possibly a hung up floor mat, drove the car a little more with no problem. Yesterday I finally got around to installing a coil over setup, and after finishing up the front I had to move the car, started it up, let idle a few minutes and blipped the throttle as I sometimes do, well it fire walled, I didn't have time to look but it sounded like it hit the rev limiter, not real good for a motor, I've done a search and haven't found anything on the subject. The only motor mod so far is an SCT tune which I am going to unload this morning, so I'm wondering if anyone here has had or heard of a problem like this. I need to get to the bottom of this before this car kills somebody. Thanks Jon
#3
6th Gear Member
In over 3 years on the forums I've only heard one guy claim anything similar. Everyone called BS and he never backed up his claim. I'd suspect your tune and I'd clean the MAF and TB for starters. Also, COPs have been known to be plagued with drivability and reliability problems and do nothing for performance on a NA engine anyway.
When you say you "caught it right away"; can you explain HOW you caught it? What did you do?
As far as redlining, most folks here with a tune have raised the redline from the stock 6250 to 6500 or 6800 and even there we've bounced off it numerous times. This engine can easily handle it so don't sweat that aspect.
When you say you "caught it right away"; can you explain HOW you caught it? What did you do?
As far as redlining, most folks here with a tune have raised the redline from the stock 6250 to 6500 or 6800 and even there we've bounced off it numerous times. This engine can easily handle it so don't sweat that aspect.
#5
In over 3 years on the forums I've only heard one guy claim anything similar. Everyone called BS and he never backed up his claim. I'd suspect your tune and I'd clean the MAF and TB for starters. Also, COPs have been known to be plagued with drivability and reliability problems and do nothing for performance on a NA engine anyway.
When you say you "caught it right away"; can you explain HOW you caught it? What did you do?
As far as redlining, most folks here with a tune have raised the redline from the stock 6250 to 6500 or 6800 and even there we've bounced off it numerous times. This engine can easily handle it so don't sweat that aspect.
When you say you "caught it right away"; can you explain HOW you caught it? What did you do?
As far as redlining, most folks here with a tune have raised the redline from the stock 6250 to 6500 or 6800 and even there we've bounced off it numerous times. This engine can easily handle it so don't sweat that aspect.
#6
When I first joined MF last November, I recall reading on here about somebody who had reported a throttle issue. The report was something on the 2010 I believe that he was on a mountain road and had the car go wide open, he pulled to the side with the clutch in and said the motor was redlined. He shut the car off and when restarted it was fine. But I do not recall if the thread actually went anywhere.
Other than that, I have never heard of a Mustang with this issue. Try a search and see if you can find the old thread, but I don't recall it really going anywhere.......
Other than that, I have never heard of a Mustang with this issue. Try a search and see if you can find the old thread, but I don't recall it really going anywhere.......
#7
ya, i would suspect the tune. how old is the tune, you may have mentioned and i just didnt see. did you take off your intake recentley? also could possibly be a stuck or sticking throttle body.
#8
Is it a custom tune from a vendor like Brenspeed or Bama? Or did you adjust settings yourself with the tuner or used a canned tune?
I've had a 2005 Honda pilot apply brakes on it's own, so Toyta's drive themselves and Honda's stop themselves. Great
I've had a 2005 Honda pilot apply brakes on it's own, so Toyta's drive themselves and Honda's stop themselves. Great
#9
It's almost impossible to make a car do this via calibration. Someone would literally have to do it intentionally and use 4-5 different parts of the tune to try and keep it at WOT. I still don't think it would work - nor do I want to try.
Kind of a scary thought, I'd take a look into the throttle body mechanicals.
EDIT: There are a few Mustang PCM codes like Bullitt's and GT500's that would stick @ WOT if the torque module switch was turned off in the calibration, and I forgot about that.
Kind of a scary thought, I'd take a look into the throttle body mechanicals.
EDIT: There are a few Mustang PCM codes like Bullitt's and GT500's that would stick @ WOT if the torque module switch was turned off in the calibration, and I forgot about that.
#10
this happend to me before, turned out that the jack asses that installed my new wind shield didn't install my carpeting on the hook when they detailed it. Nearly killed me, those friggin jerk offs! Luckily I was able to just shut her off and steered to the side... I was standing on the breaks and nothing worked.. it just kept speeding and upshifting.