replace timing belt and frint seals that are leaking
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1999 Lexus LS400 Question: timing belt replacement
Answer #1Bret Bodas from RepairPal Test Shop, March 01, 2010, 10:26Master
You can get the timing belt estimate here at RepairPal, http://repairpal.com/estimator?car_type_id=2665
The additional cost for the front seals (two cam seals and 1 crankshaft seal) will add approx 1 hour of labor ($90-$100) +parts ($60.00 - $100.00)
They will have the distributor caps and rotors off so if they show signs of wear it's a good time to replace them, along with the timing belt tensioner and idler pulleys.