Dead Spot on Acceleration (not the same hesitation I don't think)
04-19-2007, 07:08 PM
#22
Join Date: Sep 2006
Location: Central, NJ
Posts: 10
RE: Dead Spot on Acceleration (not the same hesitation I don't think)
I have a 07 GT 5 speed as well and have notice the exact same thing. I have read a lot of previous posts and it seems like everyone has their own opinion on this topic, as the reply's are all over the place.
I don't know what the issue is and reading the posts it seems that the fixes have worked for some and not others. Your guess is as good as mine. Good luck and let me know if anything works for you.
I don't know what the issue is and reading the posts it seems that the fixes have worked for some and not others. Your guess is as good as mine. Good luck and let me know if anything works for you.
04-19-2007, 11:29 PM
#23
1st Gear Member
Thread Starter
Join Date: Apr 2006
Location:
Posts: 89
RE: Dead Spot on Acceleration (not the same hesitation I don't think)
No canned tunes. Brenspeed had set me up with some wicked tunes for my V6 so it came with three of theirs. I nuked them and I am just waiting for the new tunes to arrive via e-mail.
04-23-2007, 11:58 PM
#25
1st Gear Member
Thread Starter
Join Date: Apr 2006
Location:
Posts: 89
RE: UPDATE Dead Spot on Acceleration (not the same hesitation I don't think)
UPDATED 23/04/07
I uploaded my Brenspeed 91 tune today and installed my C&L Racer. Pictures to follow....
The deadspot (or skipping a beat) was there but not as pronounced. It seemed to get better after it warmed up. As it is still there, I will pay a visit to my dealer Tuesday and see if they have any thoughts. I could live with it but would prefer to understand what is causing it as it is not a "normal" occurance.
On the Brenspeed 91 tune... You folks who have done this already know what a different car you have. For those who are wondering, it is by far the most seat of your pants thrill withoug going into some superchargers and stuff. My V6 went like snot after the tune, this GT is wild compared to that.
I uploaded my Brenspeed 91 tune today and installed my C&L Racer. Pictures to follow....
The deadspot (or skipping a beat) was there but not as pronounced. It seemed to get better after it warmed up. As it is still there, I will pay a visit to my dealer Tuesday and see if they have any thoughts. I could live with it but would prefer to understand what is causing it as it is not a "normal" occurance.
On the Brenspeed 91 tune... You folks who have done this already know what a different car you have. For those who are wondering, it is by far the most seat of your pants thrill withoug going into some superchargers and stuff. My V6 went like snot after the tune, this GT is wild compared to that.
04-24-2007, 11:51 PM
#26
1st Gear Member
Thread Starter
Join Date: Apr 2006
Location:
Posts: 89
RE: UPDATE Dead Spot on Acceleration (not the same hesitation I don't think)
So, I had it into the Ford dealer. The Service Manager called and said that he hooked up his laptop and went for a drive. The spark, fuel, timing and all other readings indicated that the engine and fuel/electrical system was operating properly.
He said that what I was feeling was the clutch. He said that they way the springs worked, at a certain pressure, it was locking up tighter.
Ok, these were my words based on a hurried call while I was in meetings. I am good with a wrench and have a good grasp of vehicles. I cannot say that I "get" what he was saying.
So, I reloaded the C&L racer and Brenspeed tune and it is hardly noticable when lightly accelerating and not there at all under moderate acceleration. I cannot say the tune fixed it as there could be other factors. If I find out what he was talking about, I will repost. Otherwise, I am moving on to my Triax installation.
He said that what I was feeling was the clutch. He said that they way the springs worked, at a certain pressure, it was locking up tighter.
Ok, these were my words based on a hurried call while I was in meetings. I am good with a wrench and have a good grasp of vehicles. I cannot say that I "get" what he was saying.
So, I reloaded the C&L racer and Brenspeed tune and it is hardly noticable when lightly accelerating and not there at all under moderate acceleration. I cannot say the tune fixed it as there could be other factors. If I find out what he was talking about, I will repost. Otherwise, I am moving on to my Triax installation.
05-07-2007, 04:24 PM
#28
3rd Gear Member
Join Date: Dec 2006
Location:
Posts: 852
RE: UPDATE Dead Spot on Acceleration (not the same hesitation I don't think)
dealer might as well have said "check your tire pressure" or "your water pump has air in it" or "the car is farting". i don't believe them and hope i never have to actually take the car in again. gives me hives thinking about it. . .
anyways my car did this for the first time in the straightaway this weekend during my first autocross event. VERY VERY annoying. i was trying to get up to speed and it cut out HARD for a split second. I can't remember if I was in first shifting to second or second to third.A very pronounced hesitation is how i'd describe it. no air on. TCS off. car warmed up. only difference i can think of is i used 93 gas instead of the usual 87 octane. the car did it again on the way home in third gear at about 3,000 rpms.
i have a k&n CAI/FIPK and no tune. i've had it this way basically since i bought it and had no problems. tune coming in the future. but i don't think it's the intake since the stock guys have the same problem.
anyways my car did this for the first time in the straightaway this weekend during my first autocross event. VERY VERY annoying. i was trying to get up to speed and it cut out HARD for a split second. I can't remember if I was in first shifting to second or second to third.A very pronounced hesitation is how i'd describe it. no air on. TCS off. car warmed up. only difference i can think of is i used 93 gas instead of the usual 87 octane. the car did it again on the way home in third gear at about 3,000 rpms.
i have a k&n CAI/FIPK and no tune. i've had it this way basically since i bought it and had no problems. tune coming in the future. but i don't think it's the intake since the stock guys have the same problem.
05-08-2007, 06:52 PM
#30
3rd Gear Member
Join Date: Dec 2006
Location:
Posts: 852
RE: UPDATE Dead Spot on Acceleration (not the same hesitation I don't think)
harrison: thanks! stealthy, that's a good way to put it. . .except for the headers/catted x/macs that kinda ruin the whole "sneak up on em" plan!
has anybody had any revelations on this issue? from what i can tell, it could be a combination of any of the following:
1) fuel pump
2) coils/spark plugs
3) throttle body
4) computer problem???
5) "engine torque management system" although why would it activate randomly? not for 6,000 miles then all of a sudden???
6) all the good Ford engineers were fired and some high school industrial arts students were hired to take their places as a cost-cutting measure
i'm so effing tired of these mysteries with this car. this is number three for me [thunking, clutch pack moan, this], and the 2 TSBs that would have applied only apply to older cars BUT I NEED MINE TO BE INCLUDED.
has anybody had any revelations on this issue? from what i can tell, it could be a combination of any of the following:
1) fuel pump
2) coils/spark plugs
3) throttle body
4) computer problem???
5) "engine torque management system" although why would it activate randomly? not for 6,000 miles then all of a sudden???
6) all the good Ford engineers were fired and some high school industrial arts students were hired to take their places as a cost-cutting measure
i'm so effing tired of these mysteries with this car. this is number three for me [thunking, clutch pack moan, this], and the 2 TSBs that would have applied only apply to older cars BUT I NEED MINE TO BE INCLUDED.
