BlackLex Posted January 3, 2004 Share Posted January 3, 2004 I don't know how exactly to explain the noise I get but a quick crackling sound from the front of the engine only when it is cold . it is not ticking from inside the engine(valves) I am wondering if it is not the tensioner/ idler pulley or pulleys. It goes away after a couple of min. The timing belt was supposedly replaced at 90,000 it now has 126000 I am not sure if the pulleys or water pump were replaced or not when that work was done because it wasn't done at a dealer because I checked(they say you can call any lexus dealer and they can tell what work was done on your car if a lexus dealer did it) there was no record of timing belt change but there is a sticker on the front of the engine that says the it was done at 90240 mi. What could it be seeing that it goes away after a few min. of warm up (and no leaking from water pump) My car is a 94 LS Quote Link to comment Share on other sites More sharing options...
90LS400Lexus Posted January 4, 2004 Share Posted January 4, 2004 Not sure about your problem. Is it close to the fan area? My car does not do this, but my car does have a faint, occasional (about 1 pop per 4 seconds) "popping" sound from under the hood from the moment I start it- for about 30 seconds. Does your car do this? I have no clue as to what it is. Quote Link to comment Share on other sites More sharing options...
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