chevy cavalier hard knocking sound

2002 CHEVROLET CAVALIER
155,000 MILES • 4 CYL • FWD • AUTOMATIC
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LCEMAN23
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My 2002 Chevy Cavalier has a hard knocking noise in the engine I believe. It also idles very rough. I have no clue what is wrong with it.
Mar 25, 2011 at 3:47 AM
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FIXITMR
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could be bad rod bearing.how long has it been doing the noise? has it gotten worse with time?
Mar 25, 2011 at 3:52 AM
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LCEMAN23
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It started making a noise not really loud when I would accelerate. Now as soon as I start my car it makes a terrible noise like I described. It has gotten worse I would say. I am not driving it now. If it is a bad rod bearing how much would it be as an estimate to fix it
Mar 25, 2011 at 4:09 AM
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FIXITMR
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might be cheaper to get a used motor. to fix,whole engine has to come apart. if it's a rod you should show a loss of some oil pressure.
Mar 25, 2011 at 4:40 AM
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LCEMAN23
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So I would have to buy a whole new engine. I might as well buy a used car. That really sucks I don't have the money to buy anew engine and pay someone to put it in.
Mar 25, 2011 at 4:49 AM
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FIXITMR
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over the internet it's only my opinion based on your descriptions. i'm not there to hear it. you should seek an opinion from a mechanic who can hear the noise.
Mar 26, 2011 at 2:42 AM