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10 Posts
2012 Smart Fortwo 52,000 miles mainly highway travel.
Yesterday out of the blue a hard knocking started. I reversed onto some high ramps and laid under the rear end and can narrow knocking down to the bell housing. There is a loud knocking and light scraping sounds that seem to be coming from inside the bell housing.
If you give it just a touch of throttle while in neutral it quiets down and basically goes away. The minute you are back id idle it's knocking and scraping again. If you do the same action in gear, it goes away.
I can drive it just fine, it auto-shifts the same as it always has. I can manually shift it without issues.
Laying directly under the bell housing it really does sounds like it is coming from the clutch pack. What on earth would do that within the bell housing but present no issues shifting or driving? If it wasn't for the loud knocking you wouldn't know anything was wrong at all.
Could it be something else that just really sounds like it is coming from the bell housing? Motor mounts seemed solid, Muffler seemed solid. I don't recall seeing the exhaust hangers or checking them... are they close enough to the gearbox and bell housing to knock and scrape? What could be close enough to do this and make it seem as it comes from inside the housing?
I mean it drives like brand new and it's so clean underneath you would think its a new car. I have a full time job and a 2 yr old kiddo to take care of. I really cannot afford to have a mechanic tear into it and we don't have any service centers around here either. So if it really is inside the bell housing I'll have no choice but to do the work myself somehow.
Any ideas or tips are welcome I don't want to tear it apart if I don't have to.
Yesterday out of the blue a hard knocking started. I reversed onto some high ramps and laid under the rear end and can narrow knocking down to the bell housing. There is a loud knocking and light scraping sounds that seem to be coming from inside the bell housing.
If you give it just a touch of throttle while in neutral it quiets down and basically goes away. The minute you are back id idle it's knocking and scraping again. If you do the same action in gear, it goes away.
I can drive it just fine, it auto-shifts the same as it always has. I can manually shift it without issues.
Laying directly under the bell housing it really does sounds like it is coming from the clutch pack. What on earth would do that within the bell housing but present no issues shifting or driving? If it wasn't for the loud knocking you wouldn't know anything was wrong at all.
Could it be something else that just really sounds like it is coming from the bell housing? Motor mounts seemed solid, Muffler seemed solid. I don't recall seeing the exhaust hangers or checking them... are they close enough to the gearbox and bell housing to knock and scrape? What could be close enough to do this and make it seem as it comes from inside the housing?
I mean it drives like brand new and it's so clean underneath you would think its a new car. I have a full time job and a 2 yr old kiddo to take care of. I really cannot afford to have a mechanic tear into it and we don't have any service centers around here either. So if it really is inside the bell housing I'll have no choice but to do the work myself somehow.
Any ideas or tips are welcome I don't want to tear it apart if I don't have to.