Sounds Bad

[passman53]

Help. I went out this morning and car ran perfectly, got back home and engine sounded normal- almost silent. Just gone to car and it started instantly BUT is missing badly, engine now has what i would describe as a light knocking noise a bit like I once had on a Cortina when the camshaft was worn, (showing my age now), The engine will rev although I haven't tried it over 2k and the knock gets faster but no louder. Any ideas on what can have gone wrong whilst parked for 6 hours????? Car is 95 LS400 and has 196K on the clock.

[TigerFish]

Is the oil level all OK?

[passman53]

Is the oil level all OK?

Hi, yes oil level is fine. Went to start it again today and for about 10 seconds it sounded as if the main bearings had gone. Then suddenly everything back to normal!!! Neighbour suggested a sticking valve?

[lutonmatt]

thats a poss maybe time for a service oil change and plugs

[passman53]

thats a poss maybe time for a service oil change and plugs

Hi, Had the oil and filter change done last tuesday, done 500 miles since and can barely hear the engine now. Thanks for the advice, perhaps a bit of muck causing temporary blockage somewhere?

[Spacewagon52]

thats a poss maybe time for a service oil change and plugs

Hi, Had the oil and filter change done last tuesday, done 500 miles since and can barely hear the engine now. Thanks for the advice, perhaps a bit of muck causing temporary blockage somewhere?

Do you always use a Lexus Dealership for your servicing? Will I have to bite the bullet???? LoL