Front Wheel Wobble - Can't Find The Cause!
#1
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Front Wheel Wobble - Can't Find The Cause!
I've got a 2003 996TT that is so incredibly sorted it's insane. Everything about how this car drives is perfect except a high speed wheel shake / wobble (really feel it at 75mph and it increases as I speed up - gets pretty severe).
I can't be positive, but it's definitely felt in the steering wheel and the front floor. This shake makes me pretty depressed about the car and honestly stops me from driving it as much as I'd like. It's been to 3 different shops since exhibiting the wobble, all the shops say everything is perfect.
I've recently moved into a home (finally) and have a jack so I can take a look myself, though I'd need to know exactly what I'm looking for since I'm not very mechanically inclined. Any help is seriously appreciated here.
HERE is what has been done on the car that would effect (or eliminate) the possibility of front wheel shake:
My current alignment:
I can't be positive, but it's definitely felt in the steering wheel and the front floor. This shake makes me pretty depressed about the car and honestly stops me from driving it as much as I'd like. It's been to 3 different shops since exhibiting the wobble, all the shops say everything is perfect.
I've recently moved into a home (finally) and have a jack so I can take a look myself, though I'd need to know exactly what I'm looking for since I'm not very mechanically inclined. Any help is seriously appreciated here.
HERE is what has been done on the car that would effect (or eliminate) the possibility of front wheel shake:
- H&R Front & Rear Sways + End-Links (came on car when purchased 2 years ago)
- Bilstein PSS10s (came on car when purchased 2 years ago)
- Rear Wheel Drive Conversion
- Front Brake Discs + Pads
- Front Wheel Bearings
- New Porsche Sport Techno OEM Wheels (shook before this, still shakes with new perfect wheels + tires)
- Semi-Solid Engine Mounts - Tarrett (1 shop said thats why the car feels rough at high speed, I don't buy it)
- Front Monoball Camber Plates - Tarrett
- GT3 Front Lower Control Arms
- GMG Thrust Arm Bushings
- Outer Tie Rod Ends
- Several sets of new tires (currently on Yokohama A052s), many rebalancing services, alignments, etc - never fixing the issue.
My current alignment:
Last edited by Jedi767; 08-21-2024 at 10:28 PM.
#2
RL Community Team
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Bent wheel, out of balance wheel, or bearing on its way is my bet.
#3
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Thread Starter
#4
RL Community Team
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Then you have to go deeper - was the car ever in an accident?
#5
RL Community Team
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Could also be a rubber bushing that has given up, but looks ok from the outside.
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blockhed (08-21-2024)
#6
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#7
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Just because Carfax is clean means nothing. I'd start checking all the control arms, links and bushings at 75 it's suspension and car ain't happy.
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sub-zero (09-20-2024)
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#8
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Considering the only parts that have been on the car since I bought it are the PSS10s + H&R Sways, is it possible something there is off (and going to be visible to a normie like me if I pull a wheel off)?
#9
Check nut behind wheel
#10
RL Community Team
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You say the car has been converted to rear wheel drive, correct?
If that is so check the stub axles or whatever was use to replace the front drive shafts. Your wobble is probably from those parts.
If that is so check the stub axles or whatever was use to replace the front drive shafts. Your wobble is probably from those parts.
#11
RL Community Team
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Looking at the rennlline stubs, my thought is no, but the possibility of a weight imbalance, and then a problem with a shock could most certainly induce a vibration.
#12
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Regardless - the wobble was there before the RWD conversion.
#13
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This, for sure - anything could have happened and been repaired without insurance.
This is an interesting idea, does the hub spin?
Looking at the rennlline stubs, my thought is no, but the possibility of a weight imbalance, and then a problem with a shock could most certainly induce a vibration.
This is an interesting idea, does the hub spin?
Looking at the rennlline stubs, my thought is no, but the possibility of a weight imbalance, and then a problem with a shock could most certainly induce a vibration.
#15
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