PLEASE HELP! SERIOUS ACCELERATION PROBLEMS!!

[GarbageCan2015]

I own a 2015 Ecoboost Mustang, bought brand new in 2015. Have had some problems the last 6 years but this is worse than any i think. My car start up fine, isles fine. But if I step on the pedal and give it “a little more acceleration than usual” the car starts cutting out, and making all kinds of bad noises. Air/fuel ratio is normal, I only run 93. Just got new tires and brakes, new cabin air filter and oil change. So I know it has something else to do with the engine, makes me believe it’s very major. Whenever I give it some power the car will rev up, then cut out, rev back up, then cut out, so I just let off. Makes some cracking noises/ car is still pushing boost tho. My first thought is I need new Fuel Injectors, plugs, plug wires, new air filter. But I don’t want to spend over 1,000$ for it to just keep doing the same thing.. has anybody had this happen ? Or know what would cause this to happen?? Anytime the car goes over 3-4K rpm’s that’s when this happens. Makes me feel like the engine is going to blow up. The car has 133,000 miles. I’ve always kept up on oil changes and maintenance. But I just read we need new fuel injectors every 50-100,000 miles. I have NO check engine lights, nothing. I guess I’m going to have no option other than to take it to the dealership and have them figure out what the problem is. (I’m not going to have them fix it because they charge over 100$$$ an HOUR FOR ANYTHING WHICH IS RIDICULOUS!!!!!!
But I can at least count on them to tell me everything that’s causing this problem, then I will just order the parts myself online and have another company install the parts for half the price. If anybody could help me with this I would greatly appreciate your time taken out of your day to reply to me.

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[sk47]

Hello; You can have codes saved by the computer without a check engine light, so get a code reader. You can go to Autozone or the other such stores and they can pull the codes.

If it were mine, I would spend some time looking over the hoses and connections. Look for places where the turbo pipes and connectors may have cracked or come loose.

I do not know if Ford recommends it, but the practice of letting the turbo RPM's wind down for a minute before shutting off an engine is a commonly suggested practice. Modern turbos are usually fed with pressurized engine oil. The idea of letting the engine idle for a minute before shutting it off allows the engine oil to keep flowing thru the turbo bearings as it spins down from many thousands of RPM. If you have been doing this, such is good.

 

[cmxPPL219]

Plugs and coilpacks are "relatively" inexpensive, so check those. Remove the coilpacks, check the condition of the plugs; is there any oil in any of the spark plug tubes?
MAF sensor, this could be a culprit as well.

 

[sk47]

Hello; After some thought this occurs to me. There is a pop off valve built into most turbo systems. It is essentially a spring loaded that opens up when the pressure inside gets to high. A weak or bad pop off ( may be called something else) might opening up and dumping compressed air too soon.
Good luck.

 

[GarbageCan2015]

Hello; You can have codes saved by the computer without a check engine light, so get a code reader. You can go to Autozone or the other such stores and they can pull the codes.

If it were mine, I would spend some time looking over the hoses and connections. Look for places where the turbo pipes and connectors may have cracked or come loose.

I do not know if Ford recommends it, but the practice of letting the turbo RPM's wind down for a minute before shutting off an engine is a commonly suggested practice. Modern turbos are usually fed with pressurized engine oil. The idea of letting the engine idle for a minute before shutting it off allows the engine oil to keep flowing thru the turbo bearings as it spins down from many thousands of RPM. If you have been doing this, such is good.

Thank you so much

 

[GarbageCan2015]

Plugs and coilpacks are "relatively" inexpensive, so check those. Remove the coilpacks, check the condition of the plugs; is there any oil in any of the spark plug tubes?
MAF sensor, this could be a culprit as well.

Thank you so much dude

 

[GarbageCan2015]

Hello; After some thought this occurs to me. There is a pop off valve built into most turbo systems. It is essentially a spring loaded that opens up when the pressure inside gets to high. A weak or bad pop off ( may be called something else) might opening up and dumping compressed air too soon.
Good luck.

Thank you so much guys

 

[GarbageCan2015]

UPDATE

Hello; You can have codes saved by the computer without a check engine light, so get a code reader. You can go to Autozone or the other such stores and they can pull the codes.

If it were mine, I would spend some time looking over the hoses and connections. Look for places where the turbo pipes and connectors may have cracked or come loose.

I do not know if Ford recommends it, but the practice of letting the turbo RPM's wind down for a minute before shutting off an engine is a commonly suggested practice. Modern turbos are usually fed with pressurized engine oil. The idea of letting the engine idle for a minute before shutting it off allows the engine oil to keep flowing thru the turbo bearings as it spins down from many thousands of RPM. If you have been doing this, such is good.

I went to auto zone and hooked up their ECU reader and it gave me 0 codes.. guess I’m taking it to he dealership tomorrow. I hope it’s the coil packs.spark plugs. Fuel pump. Or something along that way. Wish me luck fellas

 

[GT Pony]

Are the brake lights on all the time? If so, the little pad on the brake switch is gone and that can cause the car to go into limp mode when trying to accelerate.

 

[GarbageCan2015]

Are the brake lights on all the time? If so, the little pad on the brake switch is gone and that can cause the car to go into limp mode when trying to accelerate.

No the lights aren’t on unless I then then on

 

[GarbageCan2015]

UPDATE.... AGAIN....
FORD Dealership has had my car for over 5 days and “can’t figure out what’s wrong with the car”
Anybody else have this problem ??? This is getting ridiculous

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