Hey guys and gals, I have a 94 SC300 auto, wondering why my car doesnt want to turn on it did yesterday, but today when i wanted to start it, it wont. Does anyone have an idea what it might be. the engine turns but wont start up. and another thing does anyone know why the O/D light blink. please help possible ty.

 

There have been issues like this before, with the OD light. Speed sensor maybe?
If the engine is turning over, but wont start, then you have; fuel, air, or ignition(spark) issues.
Check to make sure you are getting fuel, listen for fuel pump, spray starter fluid and crank...
Check that all vacuum hoses are connected and in good repair.
Check spark.
Good luck

 

thanks i checked the 4 out of 6 spark plugs and the 5th and 6th plug look oiled up and worn out. now to move that throttle body.... and as the fuel pump where would that be? im a beginner on a lexus.

 

Fuel pump is in tank, behind the black fabric wall in the trunk. Located on the top of the tank. I think there are 8 7mm bolts in it. Don't quote me on the size or number though. It has been a while since I have been back there. You should be able to hear it humming if you can get someone to turn the key to the "on" position without cranking the motor, while you listen at the tank.
There are some great write-ups for moving the TB to get to the plugs without destroying any of your lines. I know it is fairly self explanatory, but the coolant lines can be a b****.

 

ps, if you have oil dripping from the tops of the plugs, time for new valve cover gaskets.

 

k ty for the info and help