2006 Mustang GT engine 'stumbles' when accelerating after a stop - Page 2 - Ford Mustang Forum
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Put mine in the shop today, replacing it with a Ford GT500 pump, good up to 600 HP . Recomended by Magna Charger.


Ford racing suspension (lowered 1 1/2"), Stainless Works Headers w/flow thru cats, Ford racing exhaust, Cold air intake, 373 gears, Magna Charger 10 lbs boost (intercooled), SCT Xcalibrator2, Steeda Tri-Ax shifter, aggresive chin spoiler, window tint, 18" Cobra rims and NT555 Nitto tires - sequencial tail lights
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Originally Posted by Déjà blu View Post
Sorry to hear that you're having problems. After 11 months and about 17,000 miles, this is my first warranty repair. I can't really complain...no squeaks or rattles either. That would REALLY drive me nuts. I absolutely hate the thought of leaving my baby in the care of someone else. I also have an F150, a '97 model 4X4 with about 100,000 on the clock. Never had a warranty claim on it! No other repairs except for a new Pittman arm and a new driver's side power window motor. I did those things myself since it was way out of warranty. Still solid and tight as new. Can't say the same thing about my friend's GMC. I love my truck and have no plans to get rid of it.
Good for you! As much as it pains me to say it, IMO, Ford has always made good trucks--but not so much with the cars.........
I do know it could be a lot worse: I'm w/you on the squeaks and rattles thing. Thankfully I've had none of those! (Not that I'd hear them over the stereo.) That would definitely send me over the edge!


2008 Mustang GT Premium, coupe, GT500-esque conversion, standard, torch red w/dark charcoal interior, K&N CAI, BBK twin 62mm throttle body, BBK tuned shorty headers, SCT SF3 / X3 Power Flash Preloaded Custom Tuner, Steeda UDPs, MGW shifter, 18" chrome GT500 wheels, turn signal side mirrors. Torch Red Registry #249

2013 Lexus RX350, 270 HP V6, Fire Agate/Parchment

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Originally Posted by stlwagon View Post
If it does it after a long drive I'd also say it's the fuel pump TSB.
My car has developed a similar problem recently although the problem I am having is when the engine is cold or has set for a while after driving. When I start it up in the morning it runs fine for about 2 minutes and then it seems to be loading up on fuel. If I try to drive it, it stumbles, caughs, and jumps. I can rev the engine a few times or drive it for about a mile or two at higher rpms than normal and it clears up and runs great. I can let it sit for about 15 or 20 minutes after driving it and it will do the same thing but not as severe as when it is stone cold. Also if I start it up cold and just let it sit at idle for about 5 minutes or so it wont do it although you can tell that it seems like it is drowning a bit sitting there idleing. I dont know if this has something to do with the bamachips tune or not. It started doing this about the same time I installed their tune. My gut feeling is that it doesnt. Any ideas out there?
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Originally Posted by rhbuff6622 View Post
My car has developed a similar problem recently although the problem I am having is when the engine is cold or has set for a while after driving. When I start it up in the morning it runs fine for about 2 minutes and then it seems to be loading up on fuel. If I try to drive it, it stumbles, caughs, and jumps. I can rev the engine a few times or drive it for about a mile or two at higher rpms than normal and it clears up and runs great. I can let it sit for about 15 or 20 minutes after driving it and it will do the same thing but not as severe as when it is stone cold. Also if I start it up cold and just let it sit at idle for about 5 minutes or so it wont do it although you can tell that it seems like it is drowning a bit sitting there idleing. I dont know if this has something to do with the bamachips tune or not. It started doing this about the same time I installed their tune. My gut feeling is that it doesnt. Any ideas out there?
Bama tunes do tend to run on the rich side. Do you have a rich smelling exhaust?? You could ask Doug if he could lean out the tune just a little.

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Bama tunes do tend to run on the rich side. Do you have a rich smelling exhaust?? You could ask Doug if he could lean out the tune just a little.
Yes, I have a very rich smelling exhaust come to think of it. It will knock you down in the morning. Duh, I will call Doug. Thanks Mark.:hihi:
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Yes, I have a very rich smelling exhaust come to think of it. It will knock you down in the morning. Duh, I will call Doug. Thanks Mark.:hihi:
I figured... I had the same issue with one of my Bama tunes. Rich exhaust and jet black exhaust tips. Doug tweaked it a bit and all was good. Let me know how it turns out.

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I figured... I had the same issue with one of my Bama tunes. Rich exhaust and jet black exhaust tips. Doug tweaked it a bit and all was good. Let me know how it turns out.
Same thing with mine....car felt bogged down and the mirror black tips.
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