Have a 2000 chevy prizm and it is making clunking engine noise?

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im not sure what it is can anyone help me….
it eats oil the it is water and the cylinder head does have a raping noise when at about 25 RPM and higher… the higher the rpms are the laoder it gets……
but i gues now it is a clunking noise and it is load… my fried was trying to get to a friends when it started….. it has a 1.8 toyota motor…. that yr 20 was messed up in those cars…

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  • I cant make out if there is water in your oil or not but I will address the rapping noise. Take your car and very gently drive it against something Like a tree or some thing that wont move, once against it give it some accelerations slowly and notice if the noise gets lower or even goes away. If so you have an rod bearing(S) going out if it doesn’t, you have a loose valve train problem. they need to be adjusted

  • fyi.. raping is what football players do to sorority girls… rapping is a descriptive word for a knocking sound and a “form of music” listened to by aforementioned football players.

    with that said……

    eating oil, rapping sound, clunking, banging, etc, are generally one of a few things depending upon how loud and how much vibration is caused with it… if there is no vibration, it could be a cracked head (not bad, just replace it) and compression leaking out, or a cracked block, and compression leaking out. (and your engine is shot)

    or it could be bad rings, bad valves, or a bunch of stuff. all are fixable, some would require an engine rebuild.. could be that you spun a crank bearing (and your engine is shot)

    there are tons of things it could be, but HEARING the actual sound would give someone a pretty good guess who fixes cars.

    with that said…

    when the sun comes up, pull the spark plugs and see if any of them are damaged. if so, you’re kinda screwed….

    if not, then you may be ok…

    and hell, for what it’s worth, sometimes it could just be something stupid like a bad coil, (most cars have 1 per cylinder these days) or a bad plug, and that it’s not igniting, so is basically pushing air and raw gas out the pipe… it defeinitely does some weird crap when that happens.

    start with the plugs.. easy and cheap fix…

    oh, it could also be a head gasket, which would cause it to eat oil and water.

    look at your dipstick for the oil. if it is milky looking, you probably have a screwed head gasket…………… or the aforementioned cracked block or head.

    crack is bad………. gaskets are fixable.

    long story short, you could be looking at 7 minimum to fix it up to buying a new motor and swapping it out. could cost 3k pretty easily to do that.

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