2008 4.6L GT Engine Hesitation
Why is my car feeling hesitant at times? I am hoping someone here has had similar issues, and can weigh in on this.
Just a quick run through of all the mods I have:
1. Pypes Axle Back Bomb Exhaust
2. Ford Performance 3.73 rear end
3. Ford Performance Traction-LOK Limited Slip Differential w/ Carbon Discs - 31 Spline 8.8 in.
4. Ford Performance Aluminum One Piece Driveshaft
5. iTSX Bluetooth Tuner ( car is currently stock however it has a 91 and 93 octane tune )
102,000 Miles on the car. Never changed spark plugs or anything in the engine. Only cleaned K&N Air Filter.
I would say it is about a 50/50 split as to how reliable the car feels under acceleration. (car does this whether the tune is on stock, 91, or 93 tune) Upon acceleration the car feels like it loses a decent bit of torque. and just does not feel 100% healthy. It is a bit hard to explain, because other times the car feels like it takes off like a rocketship at low rpm's with a decent bit of throttle.
Example: today going around a corner, I kept the car in second gear and held the throttle steady going around the corner, when it started to straighten up, I floored it as per usual. There was about a split second delay where the car hesitated then went full throttle. Keep in mind this is when the car is stock, not tuned. So I do not think the tune is at fault at all.
What is typically the direction to look when having issues like this? I have never done any engine work, and the car is over 100k miles now so I know many things could be the culprit. Just want to know where I should look first before I spend money in the wrong areas.