Does your engine need a valve adjustment? It depends on the age, condition and brand of vehicle you’re driving. Due to the popularization of roller-follower valve train designs that reduce friction ...
Q:I have a 2006 V-6 4Runner that now has more than 105,000 miles. Should I have the valves adjusted? Everyone I talk to says not to bother, and that it costs too much. A:Toyota recommends a valve ...