I hope this counts as Building.
I made a basic suspension car with CylindricalConstraints and Springs. However, springs stuck and don’t even act like a spring.
Example:
I did the same project one year ago, and it still works perfectly. Everything is the same except the mass of the wheels.
Maybe check the yellow bricks CanCollide property, and also check if there is any limits on the CylindricalConstraints, and maybe make the yellow bricks’ height a little smaller. And maybe check the yellow bricks’ mass
Because if it’s too heavy the springs probably won’t bounce, and also if they are too stiff they might not bounce aswell.
And also the yellow brick might be hitting the wheels a little too.
And I’m not too experienced with vehicle chassis but I think you should try some of the things I suggested to see if it fixes your problem