- Joined
- Apr 12, 2017
- Messages
- 77
Hi all,
I've got a 2010 GT500 with about 60K miles on the car. I've been noticing a vibration that is both felt and extremely audible from outside of the vehicle. The noise is most prevalent in 3rd and 4th gear and usually at about 1800-2000 rpm under heavy load. I have only really noticed the issue after having installed a McLeod RST Clutch.
-There a slightly less than smooth idle and I can create a minor vibration and shake in the engine/chassis when in neutral, not moving, and the clutch in or out. The idle however, is sometimes spot on, like you can't even feel the car running kind of smooth.
-When driving however, at points in the rev range where the vibration/lack of smoothness is at its worse, I will clutch in and hold the clutch in and rev the engine or hold the engine at that problem RPM and its gone.
Now, I suspected that perhaps something went awry with the clutch, so I pulled it out, took to the McLeod factory myself and had them check the stock flywheel and clutch balance, then mount the two together and mark the most perfect balance spot; which actually surprised the technician how in balance it was. I reinstalled the clutch and maybe it was a little better but overall still there.
I have also ruled out a driveshaft issue since I swapped the 2 piece stock unit for a Ford Performance one piece aluminum driveshaft. The vibration remained and maybe got a little worse.
My axle is making some weird noises and clunking under many driving scenarios and conditions, I redid all of the rear and front suspension, I mean its all 100% brand new. I suspect perhaps some wheel bearings at best and clutch packs at worst (different sounds). But this wouldn't explain the vibration/lack of smoothness in running during idle or the fact that it goes away when I clutch in while driving. I think this a whole other issue and I will most likely rebuild the differential.
Mods I have installed on the car:
-Engine: 2.6 Upper Pulley, JLT Big Air CAI, BBK 65MM Throttle Body, VMP Inlet Elbow
-Chassis/Suspension/Drivetrain: Lowering springs, adjustable lower control arms (Rear), adjustable panhard bar, Ford Performance One piece shaft, McLeod RST Clutch.
The noise and vibration are driving me up a wall and I cant seem to find good answers on other threads or forums. Engine mounts and the transmission mount look fine and I've had other technicians including Galpin look at this to verify my findings...nada. I don't suspect the harmonic balancer (noise isnt present when clutching in while moving at problem RPMs) per say and I don't necessarily suspect the transmission assembly itself either but its all possible.
Is it possible that something in the exhaust is creating this vibration since it seems to be RPM related? Maybe I'll look over the engine mounts again? You can really feel this minor shake (INCONSISTENT) through the seat, steering wheel, etc. Looking for some clues, maybe someone here has had this issue as well? Any input appreciated.
Thanks!
I've got a 2010 GT500 with about 60K miles on the car. I've been noticing a vibration that is both felt and extremely audible from outside of the vehicle. The noise is most prevalent in 3rd and 4th gear and usually at about 1800-2000 rpm under heavy load. I have only really noticed the issue after having installed a McLeod RST Clutch.
-There a slightly less than smooth idle and I can create a minor vibration and shake in the engine/chassis when in neutral, not moving, and the clutch in or out. The idle however, is sometimes spot on, like you can't even feel the car running kind of smooth.
-When driving however, at points in the rev range where the vibration/lack of smoothness is at its worse, I will clutch in and hold the clutch in and rev the engine or hold the engine at that problem RPM and its gone.
Now, I suspected that perhaps something went awry with the clutch, so I pulled it out, took to the McLeod factory myself and had them check the stock flywheel and clutch balance, then mount the two together and mark the most perfect balance spot; which actually surprised the technician how in balance it was. I reinstalled the clutch and maybe it was a little better but overall still there.
I have also ruled out a driveshaft issue since I swapped the 2 piece stock unit for a Ford Performance one piece aluminum driveshaft. The vibration remained and maybe got a little worse.
My axle is making some weird noises and clunking under many driving scenarios and conditions, I redid all of the rear and front suspension, I mean its all 100% brand new. I suspect perhaps some wheel bearings at best and clutch packs at worst (different sounds). But this wouldn't explain the vibration/lack of smoothness in running during idle or the fact that it goes away when I clutch in while driving. I think this a whole other issue and I will most likely rebuild the differential.
Mods I have installed on the car:
-Engine: 2.6 Upper Pulley, JLT Big Air CAI, BBK 65MM Throttle Body, VMP Inlet Elbow
-Chassis/Suspension/Drivetrain: Lowering springs, adjustable lower control arms (Rear), adjustable panhard bar, Ford Performance One piece shaft, McLeod RST Clutch.
The noise and vibration are driving me up a wall and I cant seem to find good answers on other threads or forums. Engine mounts and the transmission mount look fine and I've had other technicians including Galpin look at this to verify my findings...nada. I don't suspect the harmonic balancer (noise isnt present when clutching in while moving at problem RPMs) per say and I don't necessarily suspect the transmission assembly itself either but its all possible.
Is it possible that something in the exhaust is creating this vibration since it seems to be RPM related? Maybe I'll look over the engine mounts again? You can really feel this minor shake (INCONSISTENT) through the seat, steering wheel, etc. Looking for some clues, maybe someone here has had this issue as well? Any input appreciated.
Thanks!