Question about Pontiac Grand Am

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Need guidance for big repair!! 99 Grand Am GT Crankshaft kit

Might as well explain the whole story. I just recently bought a 99 Grand Am GT for 500 dollars. The previous owner already re-did the top portion of the engine, however the bottom half was left alone. Because of this, there is a knocking noise in the engine, and using a stethoscope, it seems to be in the bottom portion. The guy already let me know that the engine will more than likely require a Crankshaft Kit, but I just have two questions. 1: Will this solution solve this problem of the knock. 2:If it will, can you possibly e-mail instructions on how to complete the job correctly with such details like tools to use, whether the engine must come out or not; things like that. Just in case I don't know how to get back to the website, my e-mail address is Respond please!!

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  • 124 Answers, Sounds like you bought yourself a lot of fun. First of all, let me advise you that if there is a knocking noise in the bottom of the engine it could be a number of things. It could be crankshaft bearings, rod bearings, cam bearings, plugged oil ports to any of the above bearings, piston slap or a worn out oil pump.
From by experience it is more economical to purchase a short block from one of your local auto part stores. The reason I say this is because you do not know what you are going to find when you get the engine out of the vehicle and disassemble it. You might be able to disassemble it and only have to replace the crankshaft, crank bearings, rod bearings, piston rings, cam bearings and oil pump if you are lucky. If it is excessively worn you might be looking at boring the cylinders and then have to replace the pistons also. That is why I say a short block is most of the time a more economical solution. If the heads were already remanufactured to specifications you would be able to use them on the new short block.
To remove the engine from the vehicle you would need a engine hoist and the basic mechanic tools. If you decide to continue with this project let me know and I can point you in the right directions.

Posted on Nov 19, 2009


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