1HZ Engine Noise
Submitted: Friday, Aug 16, 2002 at 00:00
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Stan
Can anyone give advice on possible engine problem. When accelerating as changing up through the gears I am getting a harsh mettalic vibration type noise. In the beginning I thought it was an exhaust problem, loose baffle in a muffler or something similar, or a leak. I have gone over the the exhaust when the engine is being revved out and found no leaks or excessive noise. The noise actually appears to be coming from the top end of the engine. I cannot feel anything and cannot seem to pinpoint it. Like I said the noise is only noticeable when accelerating up through the gears and also around the 90 kph area. The vehicle idle's as quiet as anything, seems to have good fuel economy, doesn't use any oil, and seems to have plenty of power. I have taken a mates 96 DX cruiser for a run and there is a definite difference in the amount of noise the two engines make. My vehicle has done 110 000 klms and I was wondering if the noise could have anything to do with the valve clearances, as I have noticed that they are to be checked at 120 000 klms. My vehicle is a 97 model STD 4.2 Diesel Landcruiser wagon. Any advice would be greatly appreciated.