2002 Lexus SC430 Q&A
2002 Lexus SC430 Question: timing belt at this maintence advised as a precaution????
I guess you are talking about the 90,000 mile service. Yes, the timing belt is a must to do, since the 4.3L is an interference engine, which means valve to piston damage occurs in the case of timing failure. Beside the belt I'd strongly suggest ALL the serviceable timing components replaced (water pump, idler pulley, tensioner pulley, crank and cam seals), not just the belt. A good Toyota / Lexus specialty shop can beat the dealer's price and have the job done just as good. Zee - ZeeTech