Do Cars Need Valve Adjustments

Does your engine need a valve adjustment? … Due to the popularization of roller-follower valve train designs that reduce friction and hydraulic tappets (valve lifters) that help maintain optimal valve clearance, valve adjustment isn’t necessary as frequently, if at all, in modern vehicles as in older ones.

How often do cars need valve adjustments?

Some automakers recommend a valve inspection every 60,000 miles, whereas others recommend a valve inspection every 100,000 miles. During an inspection, a professional mechanic will determine whether your vehicle’s engine needs a valve adjustment.

Why does a car need a valve adjustment?

Having the valves adjusted ensures peak performance, maximum valve lift and a quiet valve train. Most modern engines have hydraulic lifters or non-adjustable valve trains that are set at the factory.