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Q for Anders: Noisy lifters? Timing chain pad? Posted by andy [Email] ![]() ![]() |
92 900S n/a 5 sp with 198,000 on it. For the last year, when cold, the car makes a fairly loud noise almost as if its an idling diesel engine. Its a rapping/knocking noise, but it goes away when warm and the warm idle is very quiet for the car's age. I can't hear the noise off idle due to exhaust and road noise. Car revs well, has been extremely reliable during the 9 years I've owned it. It performs great otherwise, can cruise at 80 without effort. Engine has never been opened save for valve cover gasket and oil pump seal. Oil gets changed every 3,500 - 4,000 miles.
If this is a bad lifter, is there an oil treatment that could help? Or do the lifters have to be replaced? My second thought is that its the timing chain pad in the valve cover, but I don't know if that noise would go away when the engine is warm. Any ideas/advice? Thanks in advance.
posted by 216.179.3...
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