Thread: HELP!! My GP died on the interstate after overheating!!

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  1. #1 Re: HELP!! My GP died on the interstate after overheating!! 
    Killa Bee Scottydoggs's Avatar
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    I've spun a few bearings in my day, and i never heard one squeak, it seems to get louder when u put the cam close to the front of the engine, water pump could be seized up or another accessory, i'd pull the belts and hand spin every pulley on the engine, and the revving it up to 1500 to 2000 grand and letting off vid would help for bottom end noise, or just hold it to 3 grand, if its a bearing u will hear a hard knock, try taking a long screw driver, and put one end on every thing u can on the front of the engine, (while its running) with your ear to the handle, do this on the valve covers and the exhaust manifolds where they meet the head, u wont believe what u can hear.
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  2. #2 Re: HELP!! My GP died on the interstate after overheating!! 
    I live here. brandonl2000's Avatar
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    Quote Originally Posted by scottydoggs View Post
    I've spun a few bearings in my day, and i never heard one squeak, it seems to get louder when u put the cam close to the front of the engine, water pump could be seized up or another accessory, i'd pull the belts and hand spin every pulley on the engine, and the revving it up to 1500 to 2000 grand and letting off vid would help for bottom end noise, or just hold it to 3 grand, if its a bearing u will hear a hard knock, try taking a long screw driver, and put one end on every thing u can on the front of the engine, (while its running) with your ear to the handle, do this on the valve covers and the exhaust manifolds where they meet the head, u wont believe what u can hear.
    alrighty. thanku for that! im really leaning towards water pump because its awfully noisy around the belt area. but also when you're around the front valve cover it sounds like lifters ticking. hopefully its just the water pump bein a noisy whore.
    2003 Grand Prix GTP-3.5 setup, sold it, miss it
    2002 Grand Prix GT-top swap, GT1 Cam, SD Headers, 90# springs, 42.5 injectors, 3.4 pulley - sold
    2012 Chevrolet Cruze LTZ-Summit White, 1.4Turbo
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  3. #3 Re: HELP!! My GP died on the interstate after overheating!! 
    I live here. brandonl2000's Avatar
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    Bad news guys: got dad up to the house and he took off the serpentine belt and checked all my pulleys. Alternator is squealing, water pump appears okay it only wobbles slightly but no real problems; but we cranked it without the belt on and got some realllllly bad news. Check out the video. We're speculating that it has either spun a bearing and has a rod knocking OR just simply has a rod knocking.
    Sooooo..yea. I made a vid (PLEASE excuse my stepmother and I talking; my dad was under the car listening at the oil pan).

    For the video, I held the camera right over the rear valve cover and the UIM Plenum; towards the end you will tell the difference in sounds. But either way that engine is knocking somethin furious! THIS IS WITH NO BELT ON. ALL SCREECHING AND KNOCKING IS ALL THE ENGINE
    Check it out guys give me some advice.
    We have assumed it would be better to just get another motor, block and all. Dad, once again, has his eye on a L67 so I guess I'll let him put in the supercharged one this time. Anyways, just tell me what you think guys we haven't made any sure decisons yet.

    2003 Grand Prix GTP-3.5 setup, sold it, miss it
    2002 Grand Prix GT-top swap, GT1 Cam, SD Headers, 90# springs, 42.5 injectors, 3.4 pulley - sold
    2012 Chevrolet Cruze LTZ-Summit White, 1.4Turbo
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