2000 Pontiac Bonneville SE 6 Cyl 3.8L
Steering & Suspension
How do you know when coil springs are bad?
My car seems to be riding rough, and the rear seems like it's lowering
The coil springs on your car seldom if ever will need to be replaced. The only reason to replace them is if they are broken (not worn but actually broken in more than one part) or if you want to change the ride height. Other wise you probably just need new shocks not coil springs.