How do i fix a wonky pedal?

For the wobbling. Can you feel the wobbling in the steering wheel? If so. 1 Check tires for knots or steel breaks, 2 bent rims. 3 Check lug nuts, Also check oil-grease in front end. Humming could very well be dry front end or bearing.

warped rotor (s)
or wheel falling off (lugs loose) causing rotor walk , on the wild side.
do not delay fixing brakes.
remove wheel
spin hub , see it wobble.? bingo.
could be bad wheel bearings.
have a brake man inspect the brakes.
i have a tool to measure both bad bearings and rotor warp
its called a dial indicator. but you break guy can find this i about
30min or less. (old hat)

check front axels will cause wobble

sounds like you also damaged tie rod ends and possibly your cv axle as well. a chuck of concrete like that will cause bad damage. put car on hoist and have a close look

check your cv joints, and axles this is assuming all your tires are round with no seperations

Pedals (both) wobbling? Or the crank that carries them both??

http://www.parktool.com/blog/repair-help/categories/pedal-service

http://www.parktool.com/blog/repair-help/one-piece-bottom-bracket-service

your brake rotors are most likely warped. replace them maching them only makes the problem worst

take it out and replace the bearings that should do it if wobbly if bent then need new crank!

please use this link:

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528018e29d


good luck.....

Problem suggests that the stroller needs a good servicing.The equipment is now being operated ignoring the safty standards and may turn out dangerous.It is recommended that you may get a authorised service engineer to look into the problem.