How To Fix The Problem With The Engine Light Indicator With Engine Dis

[panther48]

Hi I am new here. I have a Toyota Lucida Estima Diesel 1994 model came from Japan and was brought here in my country (Philippines). I have a problem in the engine light indicator, and it shows up every time I drove it more than 10 kilometers or so. Or sometimes it just shows up after a few minutes or even a few hours of rest from a long distant drive it keeps showing up. I also noticed that whenever I was in a long drive and my air condition was on for a long time, or a lot of voltage used like e.g. lights, wiper, cigarette plugs, radio, and air condition that will trigger to lit up. When the engine light indicator shows up, the engine sound changes its tune.

At first I thought that the cause was low oil from my oil gauge in front of the hood, or the engine oil itself under neat the driver’s seat (Converted Left hand drive) is low. So I tried adding engine oil, and it worked for a few days then it started again, but not as much like the last time.

I tried changing the engine oil, automatic transmission oil, oil filter, even the fuel nozzles, timing belt, the 2 coupling from the secondary drive shaft, and checked the water pump, also cleaned the radiator, but it still showing up and the engine still changing its tune. I noticed that before the engine light indicator shows up the tune of the engine sounds changes. It sounds like, from the normal to a much higher pitch with a sound of clinging or something metal ( I really could not explain the sound, but to those who experienced it please try to help me out about the sound). In case you asked about the water temperature, it’s actually normal and I never experienced overheat. But from my previous years, I did experience it. I tried to add about the water temperature, because I kind a noticed that even for a few kilometers run the engine seem so hot. But in temperature gauge, it’s normal and it stayed half from cool to hot.

My turbo doesn't work sometimes especially when climbing a hill, because I can’t hear the sound of the turbo engaging. So I was thinking that might cause the problem, but hopefully not. So hopefully you could reply to me through here or just shoot an email, it would be much appreciated and thanks for advance.

Here's my email shadonyte48@yahoo.com and hope I find an answer or a way to get rid of it without selling my Lucy.

The only thing I can stop that annoying engine light indicator with a changing of the engines sound pitch was to turn it off and turn it on. But the air condition was off. It worked for a couple of kilometers or mile, then it shows up again and sometimes I was lucky that it didn't show up again till I got home.