Sudden Power loss on Highway
#1
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Was Driving my 16 S on a rally today when halfway into the drive on the highway as I go to pass someone and downshift and step on it the car barely moves, like 1mph every second, Could barely get to 80, So I pulled over on the shoulder, turned it off and an on, As I try to merge onto the freeway I floored it from a dead stop, and I **** you not the car took a good 10-12 seconds to get to 60mph. I know something is very wrong but It threw 0 codes, shifts fine, runs fine, just feels like it has a 100hp, and when in manual mode sounds very week at 6k, like it is dying out,or out of breath so to speak, Don't think its fuel as Its the same station I always use, 93 ofc, and I had already ran through half a tank with no issue.
The only thing that really stands out is that I can not hear any supercharger whine, it was never very loud but at full throttle or revving with the hood open you could always hear it pretty cleary, and now nothing. That leads me to think that the car is not making any boost, and just running N/A, but I do not understand how it is not throwing any codes at all, dropped if off at the local dealer and will hopefully hear back soon. Just wondering if anyone has any thoughts on what it may be. My only other guess is fuel related, but the fuel pump was replaced less than a year ago, car has 34k miles on it. Bone stock as well. Thanks and hope everyone had a good thanksgiving! stay safe and healthy.
this is full throttle in dynamic mode-
The only thing that really stands out is that I can not hear any supercharger whine, it was never very loud but at full throttle or revving with the hood open you could always hear it pretty cleary, and now nothing. That leads me to think that the car is not making any boost, and just running N/A, but I do not understand how it is not throwing any codes at all, dropped if off at the local dealer and will hopefully hear back soon. Just wondering if anyone has any thoughts on what it may be. My only other guess is fuel related, but the fuel pump was replaced less than a year ago, car has 34k miles on it. Bone stock as well. Thanks and hope everyone had a good thanksgiving! stay safe and healthy.
this is full throttle in dynamic mode-
#2
![Default](/forum/images/icons/icon1.gif)
Was Driving my 16 S on a rally today when halfway into the drive on the highway as I go to pass someone and downshift and step on it the car barely moves, like 1mph every second, Could barely get to 80, So I pulled over on the shoulder, turned it off and an on, As I try to merge onto the freeway I floored it from a dead stop, and I **** you not the car took a good 10-12 seconds to get to 60mph. I know something is very wrong but It threw 0 codes, shifts fine, runs fine, just feels like it has a 100hp, and when in manual mode sounds very week at 6k, like it is dying out,or out of breath so to speak, Don't think its fuel as Its the same station I always use, 93 ofc, and I had already ran through half a tank with no issue.
The only thing that really stands out is that I can not hear any supercharger whine, it was never very loud but at full throttle or revving with the hood open you could always hear it pretty cleary, and now nothing. That leads me to think that the car is not making any boost, and just running N/A, but I do not understand how it is not throwing any codes at all, dropped if off at the local dealer and will hopefully hear back soon. Just wondering if anyone has any thoughts on what it may be. My only other guess is fuel related, but the fuel pump was replaced less than a year ago, car has 34k miles on it. Bone stock as well. Thanks and hope everyone had a good thanksgiving! stay safe and healthy.
this is full throttle in dynamic mode-
https://youtu.be/bdfFmNhw07M
The only thing that really stands out is that I can not hear any supercharger whine, it was never very loud but at full throttle or revving with the hood open you could always hear it pretty cleary, and now nothing. That leads me to think that the car is not making any boost, and just running N/A, but I do not understand how it is not throwing any codes at all, dropped if off at the local dealer and will hopefully hear back soon. Just wondering if anyone has any thoughts on what it may be. My only other guess is fuel related, but the fuel pump was replaced less than a year ago, car has 34k miles on it. Bone stock as well. Thanks and hope everyone had a good thanksgiving! stay safe and healthy.
this is full throttle in dynamic mode-
https://youtu.be/bdfFmNhw07M
#3
#4
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just chiming in that driving looks very similar to the time I shredded my supercharger belt after I got my VAP stuff done. Pretty much was running without the supercharger while I slowly made it into a preschool Parking lot which seemed like it took forever also same thing whine went away.
did it throw a check engine light when that happened? the one exposed Belt I can see from the engine bay with the cover removed looked in perfect shape, but I could have been looking at the wrong belt. the car ran perfect, besides the lack of power, I mean slowly but surely I was able to accelerate into high numbers, just took me prob a minute of full throttle to get there. Was it a quick fix?
#6
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#8
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#10
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#11
#12
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A lot people believe when a CEL isn't on, the car isn't throwing codes. They don't understand that not every code triggers a CEL. I never "assume" someone knows this.
Typically if there is no cell, then in my experience it's a mechanical issue. I haven't had a similar problem with the F-Type, but in my other FI cars it's been something with the FI system (whether it's a failed sc or turbo, or belt slipping, damaged coupler, etc). It would also help to have a video without the music banging to see if there are any unusual sounds coming from the engine area when trying to accelerate.
Typically if there is no cell, then in my experience it's a mechanical issue. I haven't had a similar problem with the F-Type, but in my other FI cars it's been something with the FI system (whether it's a failed sc or turbo, or belt slipping, damaged coupler, etc). It would also help to have a video without the music banging to see if there are any unusual sounds coming from the engine area when trying to accelerate.
#13
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I wish lol, that would be an easy fix haha, but no even when you use the kick down pedal, it kicks down like normal just barely moves lol. is this how p300 owners feel everytime they get in the car? lol Jk jk jk, but ya very odd.
#14
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just chiming in that driving looks very similar to the time I shredded my supercharger belt after I got my VAP stuff done. Pretty much was running without the supercharger while I slowly made it into a preschool Parking lot which seemed like it took forever also same thing whine went away.
#16
#17
#18
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I thought that it would have gone into limp mode, it was letting me rev all the way up to 6800, so idk, but i agree with the no on the fly N/A tune. thats why it was so slow with no boost, my guess is the blower adds 80-100 horsepower, and it def didn't feel like a 280-300 horse car.
#19
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I thought that it would have gone into limp mode, it was letting me rev all the way up to 6800, so idk, but i agree with the no on the fly N/A tune. thats why it was so slow with no boost, my guess is the blower adds 80-100 horsepower, and it def didn't feel like a 280-300 horse car.
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Carbuff2 (12-03-2020)
#20
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I thought that it would have gone into limp mode, it was letting me rev all the way up to 6800, so idk, but i agree with the no on the fly N/A tune. thats why it was so slow with no boost, my guess is the blower adds 80-100 horsepower, and it def didn't feel like a 280-300 horse car.
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