A few Vantage tough-to-diagnose issues
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A few Vantage tough-to-diagnose issues
Hello,
Hoping some of you may have some leads on tough to diagnose issues (ie - not so obvious and hard to describe).
Background: 06 V8V, manual. VAP clutch/flywheel, headers, 200cell cats, back box, air filters, & tune. Ive recently purchased this vehicle about 6months ago and put the exhaust on this winter. Drove it very little prior to winter. In addition to the new parts, also did plugs and all fluids.
Problem 1:
When turning left, there is a noticeable rattle/vibration/noise in the cabin.
- This noise does not exist when turning right.
- This noise does not exist if im in neutral (ie wheel bearings not the issue)
- The more I am accelerating/higher revs while in the turn this noise is worse.
- If i hold revs consistent, the tighter I turn (more g) the worse it is.
- As soon as I pass the steering threshold to the other direction is stops.
My initial thought is that the engine was shifting slightly during cornering and causing contact with the frame in some way, transferring the engine vibration to the cabin. Nothing leaking from engine mounts. Can find any marring or visual on a part that is in contact and vibrating.
Problem 2:
I was very please to install the exhaust and tune. The car is louder and retains a good deep growl. The throttle is much more responsive. Blips are quick and concise.
While driving one day, there was a noticeable change in the tone of the exhaust, higher pitched, quieter, less deep growl. This caught me off as I could now hear more engine noise and it wasnt making the sound i have become accustomed to.
I parked in the drive and blipped it a few times and it was noticeably slower to 'ramp up' as well as to come back down.
It almost sounds restricted, however when driving, power does not seem to be lacking. Idle is still smooth/consistent.
Checked for exhaust leaks, none. I did see that there is noticeable soot on the exhaust tip, although not many miles driven (although many were spirited), 94 octance fuel Canada.
Any thoughts on why an exhaust tone/sound might change?
Problem 3:
The car has KW V3 coilovers. While it is definetely stiff, the ride quality is still decent.
I am trying to track down a distinctive squeak however. It only happens intermitently and always when in a compression on the front end, both wheels will cause it. Less about hard edges, more about bigger compressions. Its a consistent high pitched and short squeak - as much a definition of a squeak as ive ever heard.
Are there common culprits on these cars?
I recognize these are challenging to describe, if you have any thoughts on ideas of where to start looking, or have had something similar, its much appreciated. Any follow up questions for more info please feel free
Hoping some of you may have some leads on tough to diagnose issues (ie - not so obvious and hard to describe).
Background: 06 V8V, manual. VAP clutch/flywheel, headers, 200cell cats, back box, air filters, & tune. Ive recently purchased this vehicle about 6months ago and put the exhaust on this winter. Drove it very little prior to winter. In addition to the new parts, also did plugs and all fluids.
Problem 1:
When turning left, there is a noticeable rattle/vibration/noise in the cabin.
- This noise does not exist when turning right.
- This noise does not exist if im in neutral (ie wheel bearings not the issue)
- The more I am accelerating/higher revs while in the turn this noise is worse.
- If i hold revs consistent, the tighter I turn (more g) the worse it is.
- As soon as I pass the steering threshold to the other direction is stops.
My initial thought is that the engine was shifting slightly during cornering and causing contact with the frame in some way, transferring the engine vibration to the cabin. Nothing leaking from engine mounts. Can find any marring or visual on a part that is in contact and vibrating.
Problem 2:
I was very please to install the exhaust and tune. The car is louder and retains a good deep growl. The throttle is much more responsive. Blips are quick and concise.
While driving one day, there was a noticeable change in the tone of the exhaust, higher pitched, quieter, less deep growl. This caught me off as I could now hear more engine noise and it wasnt making the sound i have become accustomed to.
I parked in the drive and blipped it a few times and it was noticeably slower to 'ramp up' as well as to come back down.
It almost sounds restricted, however when driving, power does not seem to be lacking. Idle is still smooth/consistent.
Checked for exhaust leaks, none. I did see that there is noticeable soot on the exhaust tip, although not many miles driven (although many were spirited), 94 octance fuel Canada.
Any thoughts on why an exhaust tone/sound might change?
Problem 3:
The car has KW V3 coilovers. While it is definetely stiff, the ride quality is still decent.
I am trying to track down a distinctive squeak however. It only happens intermitently and always when in a compression on the front end, both wheels will cause it. Less about hard edges, more about bigger compressions. Its a consistent high pitched and short squeak - as much a definition of a squeak as ive ever heard.
Are there common culprits on these cars?
I recognize these are challenging to describe, if you have any thoughts on ideas of where to start looking, or have had something similar, its much appreciated. Any follow up questions for more info please feel free
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